• The exact composition of the menu depends on the settings made on the CAL SETUP, CAL METHOD, and LINE TYPE menus and on the resultant TWO PORT CAL SETUP dialog box.
• A representative menu is shown below.
• The example procedures at the end of this chapter show examples of various TWO PORT CAL menus.
A display button showing the port numbers that are in the calibration.
Completion Menu Buttons
For this example menu, the Port 1 Reflective Devices to the Isolation (Optional) buttons link to completion submenus where additional calibration procedures are performed.
For example, the Port 1 Reflective Devices button (shown below at #1) links to the REFL. DEVICES PORT 1 submenu. As each procedure is completed, the submenu button is marked with a completion checkmark. When all the procedures on the submenu are completed, use the Back button to return to the TWO PORT CAL menu.
The Port 1 Reflective Devices button (shown above at #2) is now marked with a completion checkmark.
Port 1 Reflective Devices
When selected, provides the REFL. DEVICES PORT 1 menu. Each button represents a completion task. When ready for the task, click the button, and the instrument performs the calibration. When the calibration task is successfully completed, the button is marked with a completion checkmark. When all tasks are completed on the menu, return to the TWO PORT CAL menu.
Port 2 Reflective Devices
When selected, displays the REFL. DEVICES PORT 2 menu. When all tasks are completed, return to the TWO PORT CAL menu.
Port 1-2 Reflective Devices (See figure at left)
When Cal Method selected is TRL/TRM, LRL/LRM, or mTRL, the Port 1 Reflective Devices button label changes to Port 1-2 Reflective Devices. Selecting opens the LINES/MATCHES DEVICE(S) Menu – 2-Port VNAs. It offers selections in accordance with the settings made in the 2 Port Cal Setup Dialog.
Port 1-2 Lines/Matches (See figure at left)
When Cal Method selected is TRL/TRM, LRL/LRM, or mTRL, the Port 1 Reflective Devices button label changes to Port 1-2 Lines/Matches. Selecting opens the LINES/MATCHES DEVICE(S) Menu – 2-Port VNAs. It offers selections in accordance with the settings made in the 2 Port Cal Setup Dialog. This offers selections of up to five bands and ten devices.
Thru/Recip
When selected, displays the THRU/RECIP menu. When all tasks are completed, return to the TWO PORT CAL menu.
Isolation (Optional)
When selected, displays the ISOLATION menu. When all tasks are completed, return to the TWO PORT CAL menu.
Done
This button is unavailable until all calibration tasks have been successfully completed. When available, select the button to return to the CALIBRATION menu when the Cal Status is set to ON.
Manual 2-Port Cal Setup Dialog Boxes – 2-Port VNAs
From the TWO PORT CAL menu, Modify Cal Setup button links to the CAL SETUP menu, where the Edit Cal Params button displays the appropriate configuration dialog box with that vary depending on the settings made in the MANUAL CAL, CAL SETUP, CAL METHOD, and LINE TYPE menus. Sample dialog boxes are described in the sections below for:
• MAIN | Calibration | CALIBRATION | Calibrate | CALIBRATE | Manual Cal | MANUAL CAL | 2-Port Cal | TWO-PORT CAL | Modify Cal Setup | CAL SETUP | Edit Cal Params | TWO-PORT CAL SETUP (SOLT/R, Coaxial Dialog Box)
Edit Cal Params – TWO PORT CAL SETUP (SOLT/R, Coaxial) Dialog Box
1. Through selected allows user entries for length, line impedance, line loss, and frequency. Reciprocal selected allows user entry for length. S2P Thru selected provides buttons for loading, viewing, and characterization (to generate S2P files).
Reference Impedance
• Input field defaulted to 50 Ohms.
• Any numerical value accepted, although input values < 0.01 Ohms are converted to 0.01 Ohms.
Select Cal Type
Select from three radio button controlled options:
• Full 2 Port
• 1 Path 2 Port (1 → 2)
• 1 Path 2 Port (2 → 1)
Load Type Area
Select from two radio button controlled options:
• Broadband Load
• Sliding Load. If Sliding Load is selected:
• A message appears in the “Still requires broadband loads below sliding load breakpoint frequency.”
• A Sliding Load button appears on the PORT 1 REFLECTIVE DEVICES menu and on the PORT 2 REFLECTIVE DEVICES menu.
Test Port 1 Connector Type Area
Select the DUT Connector Type from a drop-down menu list with options of:
• 0.8 mm (M)
• 0.8 mm (F)
• W1-Conn (M)
• W1-Conn (F)
• V-Conn (M)
• V-Conn (F)
• K-Conn (M)
• K-Conn (F)
• 2.4 mm (M)
• 2.4 mm (F)
• GPC-3.5 (M)
• GPC-3.5 (F)
• SMA (M)
• SMA (F)
• N-Conn (M)
• N-Conn (F)
• N-Conn (75) (M)
• N-Conn (75) (F)
• GPC-7
• 7/16 (M)
• 7/16 (F)
• TNC (M) (Kit from Maury Microwave)
• TNC (F) (Kit from Maury Microwave)
• User-Defined1 (M) through User-Defined32 (M)
• User-Defined1 (F) through User-Defined32 (F)
Select BB Load for Test Port 1 Area
Select BB Load number for Test Port 1:
• Load 1
• Load 2
Test Port 1 Connector Standard Info Button
Select displays the STANDARD INFO dialog box for the selected connector and calibration method that displays the connector calibration coefficients. The dialog box contents depends on the connector selected above and on the Cal Method selected.
Test Port 2 Connector Type Area
Select the DUT Connector Type from a drop-down menu list with options the same as the Test Port 1 Connector area above.
Test Port 2 Connector Standard Info Button
Select displays the STANDARD INFO dialog box for the selected connector and calibration method that displays the connector calibration coefficients. The dialog box contents depends on the connector selected above and on the Cal Method selected.
Select BB Load for Test Port 2 Area
Select BB Load number for Test Port 2:
• Load 1
• Load 2
Through/Reciprocal/S2P Thru Area
Located on the right side of the dialog box, these controls allow characterization of the Through/Reciprocal/S2P Thru line settings.
• Select Line. Allows options of:
• Through
• Reciprocal
• S2P Thru
• Through Selected
• Length (mm)
• Input line length in mm.
• Calculator icon displays the AIR EQUIVALENT LENGTH CONVERSION dialog box.
• Allows a thru characterization and generation of a .s2p file.
• Use Generic Anritsu Adapter (check box)
• Checking this box will automatically load a default .s2p file for a generic Anritsu adapter. Note that selecting the checkbox disables the Load S2P for Thru and Characterize Thru buttons. (Supports V and K type connectors only.)
OK / Cancel
Click OK to accept the changes and return to the CAL SETUP menu.
Click Cancel to abandon any changes and return to the CAL SETUP menu.
TWO PORT CAL SETUP (SSLT, Coaxial) Dialog Box – 2-Port VNAs
• MAIN | Calibration | CALIBRATION | Calibrate | CALIBRATE | Manual Cal | MANUAL CAL | 2-Port Cal | TWO-PORT CAL | Modify Cal Setup | CAL SETUP | Edit Cal Params | TWO-PORT CAL SETUP (SSLT, Coaxial) Dialog Box
TWO PORT CAL SETUP (SSLT, Coaxial) Dialog Box
1. Through selected allows user entries for length, line impedance, line loss, and frequency. Reciprocal selected allows user entry for length. S2P Thru selected provides buttons for loading, viewing, and characterization (to generate S2P files).
Reference Impedance
• Input field defaulted to 50 Ohms.
• Any numerical value accepted, although input values < 0.01 Ohms are converted to 0.01 Ohms.
Select Cal Type
Select from three radio button controlled options:
• Full 2 Port
• 1 Path 2 Port (1 → 2)
• 1 Path 2 Port (2 → 1)
Load Type Area
Select from two radio button controlled options:
• Broadband Load
• Sliding Load. If Sliding Load is selected:
• A message appears in the “Still requires broadband loads below sliding load breakpoint frequency.”
• A Sliding Load button appears on the PORT 1 REFLECTIVE DEVICES menu and on the PORT 2 REFLECTIVE DEVICES menu.
Test Port 1 Connector Type Area
Select the DUT Connector Type from a drop-down menu list with options of:
• 0.8 mm (M)
• 0.8 mm (F)
• W1-Conn (M)
• W1-Conn (F)
• User-Defined1 (M) through User-Defined32 (M)
• User-Defined1 (F) through User-Defined32 (F)
Select BB Load for Test Port 1 Area
Select BB Load number for Test Port 1:
• Load 1
• Load 2
Test Port 1 Connector Standard Info Button
Select displays the STANDARD INFO dialog box for the selected connector and calibration method that displays the connector calibration coefficients. The dialog box contents depends on the connector selected above and on the Cal Method selected.
Test Port 2 Connector Type Area
Select the DUT Connector Type from a drop-down menu list with options the same as the Test Port 1 Connector area above.
Test Port 2 Connector Standard Info Button
Select displays the STANDARD INFO dialog box for the selected connector and calibration method that displays the connector calibration coefficients. The dialog box contents depends on the connector selected above and on the Cal Method selected.
Select BB Load for Test Port 2 Area
Select BB Load number for Test Port 2:
• Load 1
• Load 2
Through/Reciprocal/S2P Thru Area
Located on the right side of the dialog box, these controls allow characterization of the Through/Reciprocal/S2P Thru line settings.
• Select Line. Allows options of:
• Through
• Reciprocal
• S2P Thru
• Through Selected
• Length (mm)
• Input line length in mm.
• Calculator icon displays the AIR EQUIVALENT LENGTH CONVERSION dialog box.
• Allows a thru characterization and generation of a .s2p file.
Test Port 2 Connector Area – Standard Info Button
Select displays the STANDARD INFO (SOLT/R) K-Conn (M) dialog box shown below. In the example below, K-Conn (M) was selected for a Test Port 1 DUT Connector.
Test Port 2 Connector STANDARD INFO Dialog Box for SOLT/R and K-Conn (M)
The STANDARD INFO dialog shows the applicable calibration parameters for Test Port 2.
TWO PORT CAL SETUP (SSST, Coaxial) Dialog Box – 2-Port VNAs
• MAIN | Calibration | CALIBRATION | Calibrate | CALIBRATE | Manual Cal | MANUAL CAL | 2-Port Cal | TWO-PORT CAL | Modify Cal Setup | CAL SETUP | Edit Cal Params | TWO-PORT CAL SETUP (SSST, Coaxial) Dialog Box
Edit Cal Params – TWO PORT CAL SETUP (SSST, Coaxial) Dialog Box
1. Through selected allows user entries for length, line impedance, line loss, and frequency. Reciprocal selected allows user entry for length. S2P Thru selected provides buttons for loading, viewing, and characterization (to generate S2P files).
Reference Impedance
Input the reference impedance.
• Input field defaulted to 50 Ohms.
• Any numerical value accepted, although input values < 0.01 Ohms are converted to 0.01 Ohms.
Select Cal Type
Select from three radio button controlled options:
• Full 2 Port
• 1 Path 2 Port (1 → 2)
• 1 Path 2 Port (2 → 1)
Test Port 1 Connector Type Area
Select the DUT Connector Type from a drop-down menu list with options of:
• 0.8 mm (M)
• 0.8 mm (F)
• W1-Conn (M)
• W1-Conn (F)
• User-Defined1 (M) through User-Defined32 (M)
• User-Defined1 (F) through User-Defined32 (F)
Test Port 1 Connector Standard Info Button
Select displays the STANDARD INFO dialog box for the selected connector and calibration method that displays the connector calibration coefficients. The dialog box contents depends on the connector selected above and on the Cal Method selected.
Test Port 2 Connector Type Area
Select the DUT Connector Type from a drop-down menu list with options the same as the Test Port 1 Connector area above.
Test Port 2 Connector Standard Info Button
Select displays the STANDARD INFO dialog box for the selected connector and calibration method that displays the connector calibration coefficients. The dialog box contents depends on the connector selected above and on the Cal Method selected.
Through/Reciprocal/S2P Thru Area
Located on the right side of the dialog box, these controls allow characterization of the Through/Reciprocal/S2P Thru line settings.
• Select Line. Allows options of:
• Through
• Reciprocal
• S2P Thru
• Through Selected
• Length (mm)
• Input line length in mm.
• Calculator icon displays the AIR EQUIVALENT LENGTH CONVERSION dialog box.
• Cal Method = Broadband Cal (SOLT/R-SSST/R) – Appears only with VNA in Broadband Mode (3739)
• Line Type = Coaxial
Navigation
• MAIN | Calibration | CALIBRATION | Calibrate | CALIBRATE | Manual Cal | MANUAL CAL | 2-Port Cal | TWO-PORT CAL | Modify Cal Setup | CAL SETUP | Edit Cal Params | TWO PORT CAL SETUP (BROADBAND CAL, MERGED SOLT-SSST/SOLR-SSSR) Dialog Box
TWO PORT CAL SETUP Broadband Cal, Merged (SOLT/R-SSST/R) Dialog Box
1. Through selected allows user entries for length, line impedance, line loss, and frequency. Reciprocal selected allows user entry for length. S2P Thru selected provides buttons for loading, viewing, and characterization (to generate S2P files).
Reference Impedance
Input the reference impedance.
• Input field defaulted to 50 Ohms.
• Any numerical value accepted, although input values < 0.01 Ohms are converted to 0.01 Ohms.
Select Cal Type
Select from three radio button controlled options:
• Full 2 Port
• 1 Path 2 Port (1 → 2)
• 1 Path 2 Port (2 → 1)
Test Port 1 DUT Connector Type Area
Select the DUT Connector Type from a drop-down menu list with options of:
• W1-Conn (M)
• W1-Conn (F)
• 0.8 mm (M)
• 0.8 mm (F)
• User-Defined1 (M) through User-Defined32 (M)
• User-Defined1 (F) through User-Defined32 (F)
Test Port 1 Connector Standard Info Button
• Select displays the STANDARD INFO dialog box for the selected connector and calibration method that displays the connector calibration coefficients. The dialog box contents depend on the selected connector, Cal Method, and Line Type. The following link shows a typical standard information dialog box for broadband cal.
• Identical function as with the Test Port 1 DUT Connector Area above. DUT Connector Type is selected from a drop-down menu list.
Test Port 2 Connector Standard Info Button
• Identical function as with the Test Port 1 DUT Connector Standard Info button above. Select displays the STANDARD INFO dialog box for the selected DUT Connector.
Breakpoint Frequency
• 67 GHz is recommended for the 3656 (1 mm) calibration kit.
• 80 GHz is recommended for the 3659 (0.8 mm) calibration kit.
• In this combined calibration, the breakpoint frequency defines the frequency above which the SSS algorithm will be used (and SOL will be used for the frequencies at or below the breakpoint). Default values are based on Anritsu calibration kits and are optimal for those components.
Through/Reciprocal/S2P Thru Area
Located on the right side of the dialog box, these controls allow characterization of the Through/Reciprocal/S2P Thru line settings.
• Select Line. Allows options of:
• Through
• Reciprocal
• S2P Thru
• Through Selected
• Length (mm)
• Input line length in mm.
• Calculator icon displays the AIR EQUIVALENT LENGTH CONVERSION dialog box.
• MAIN | Calibration | CALIBRATION | Calibrate | CALIBRATE | Manual Cal | MANUAL CAL | 2-Port Cal | TWO PORT CAL | Modify Cal Setup | CAL SETUP | Edit Cal Params | TWO PORT CAL SETUP (TRL/TRM) | Line Type (Coaxial) | Edit Cal Param | TWO PORT CAL SETUP (TRL/TRM, Coaxial) Dialog Box
TWO PORT CAL SETUP (TRL/TRM, Coaxial) Dialog Box
Reference Impedance
Input the reference impedance.
• Input field defaulted to 50 Ohms.
• Any numerical value accepted, although input values < 0.01 Ohms are converted to 0.01 Ohms.
Dielectric
Enter a value if different than the default.
Line Length Representation
Select from three radio button controlled options:
• Effective Length (the free-space equivalent length)
• Delay
• Physical Length
Band Definition
Select one to five bands from the drop-down menu.
• Number of Bands = 1. Only the Band 1 Definition and editable parameters appear.
• Number of Bands = 2. The Band 2 Definition and editable parameters appear.
• Number of Bands = 3. The Band 3 Definition and editable parameters appear.
• Number of Bands = 4. The Band 4 Definition and editable parameters appear.
• Number of Bands = 5. The Band 5 Definition and editable parameters appear.
Band Parameter Definitions
• Band #
• Cal Device
• Band choice is
• Line
• Match
• Device Effective Length (mm) / Match
• Line: Enter device effective length for each band
• Enter a breakpoint frequency for Band 2–5. (The entries are active for bands 2–5.)
• Breakpoint Calculation
• Select to calculate a breakpoint frequency for band 2-5:
Reflection Component
• Enforce Passivity – Forces the reflection value to be passive at an intermediate step in the calibration, which rescales the reflection tracking terms.
• Enter Open-like and/or Short-like offset length
Last Loaded Kit Name, Save Kit, Load Kit, Restore Defaults
• Last Loaded Kit Name – Loaded kit name appears in the field. The name can be edited in this field and then saved as another kit.
• Save Kit – Saves the present cal setup.
• Load Kit – Loads a previously saved cal setup.
• Restore Defaults – Loads the instrument default values for the Cal Setup.
OK/Cancel
OK and Cancel returns user to the CAL SETUP menu.
TWO PORT CAL SETUP (LRL/LRM, Coaxial) Dialog Box – 2-Port VNAs
When LRL/LRM Cal Method is selected, the Edit Cal Parameters LRL/LRM dialog provides for up to five bands and 10 devices.
• MAIN | Calibration | CALIBRATION | Calibrate | CALIBRATE | Manual Cal | MANUAL CAL | 2-Port Cal | TWO-PORT CAL | Modify Cal Setup | CAL SETUP | Edit Cal Params | TWO-PORT CAL SETUP (LRL/LRM, Coaxial) Dialog Box
Edit Cal Params – TWO PORT CAL SETUP (LRL/LRM, Coaxial) Dialog Box
Reference Impedance
Input the reference impedance.
• Input field defaulted to 50 Ohms.
• Any numerical value accepted, although input values < 0.01 Ohms are converted to 0.01 Ohms.
Dielectric
Enter a value if different than the default.
Reference Plane Location
Select from two radio button controlled options:
• Ends of Line 1
• Middle of Line 1
Line Length Representation
Select from three radio button controlled options:
• Effective Length (the free-space equivalent length)
• Delay
• Physical Length
Band Definition
Select one to five bands from the drop-down menu.
• Number of Bands = 1. Only the Band 1 Definition and editable parameters appear.
• Number of Bands = 2. The Band 2 Definition and editable parameters appear.
• Number of Bands = 3. The Band 3 Definition and editable parameters appear.
• Number of Bands = 4. The Band 4 Definition and editable parameters appear.
• Number of Bands = 5. The Band 5 Definition and editable parameters appear.
Band Parameter Definitions
• Band # (Device #)
• Band 1 defines Devices as X = 1 and Y = 2)
• Band 2 defines Devices as X = 3 and Y = 4)
• Band 3 defines Devices as X = 5 and Y = 6)
• Band 4 defines Devices as X = 7 and Y = 8)
• Band 5 defines Devices as X = 9 and Y = 10)
• Cal Device X
• Band 1 choice is:
• Line
• Band 2 choices are:
• New Line
• Bnd1 Cal Dev X
• Band1 Cal Dev Y
• Band 3 choices are:
• New Line
• Bnd1 Cal Dev X
• Band1 Cal Dev Y
• Bnd2 Cal Dev X
• Band2 Cal Dev Y
• Band 4 choices are:
• New Line
• Bnd1 Cal Dev X, Bnd1 Cal Dev Y
• Bnd2 Cal Dev X, Bnd2 Cal Dev Y
• Bnd3 Cal Dev X, Bnd3 Cal Dev Y
• Band 5 choices are:
• NewLine
• Bnd1 Cal Dev X, Bnd1 Cal Dev Y
• Bnd2 Cal Dev X, Bnd2 Cal Dev Y
• Bnd3 Cal Dev X, Bnd3 Cal Dev Y
• Bnd4 Cal Dev X, Bnd4 Cal Dev Y
• Device X Length (mm)
• Enter device length for each band.
• Cal Device Y
• Select Line or Match for each band.
• Device Y Length (mm)/Match
• Enter device length for each band if Device Y is Line.
• Enter a breakpoint frequency for each band. (This area only active for bands 2 through 5.)
• Breakpoint Calculation
• Select to Calculate a breakpoint frequency for each band:
Reflection Component
• Enforce Passivity – Forces the reflection value to be passive at an intermediate step in the calibration, which rescales the reflection tracking terms.
• Enter Open-like and/or Short-like offset length.
Last Loaded Kit Name, Save Kit, Load Kit, Restore Defaults
• Last Loaded Kit Name – Loaded kit name appears in the field. The name can be edited in this field and then saved as another kit.
• Save Kit saves the present cal setup.
• Load Kit – Click opens window to navigate to a desired existing LRL/LRM cal kit file (.lcf).
• Restore Defaults loads the instrument default values for the Cal Setup.
OK/Cancel:Returns user to the CAL SETUP menu.
USER DEFINED MATCH DEVICES Dialog Box
The USER DEFINED MATCH DEVICES dialog box only appears if Device 2 or Device 4 is set to Match and the user clicks the Match Info button.
USER DEFINED MATCH DEVICES Dialog Box
TWO PORT CAL SETUP (mTRL, Coaxial) Dialog Box – 2-Port VNAs
When mTRL Cal Method is selected, the Edit Cal Parameters button opens the Two Port Cal Setup (mTRL, Coaxial) dialog that provides from two to ten lines.
• MAIN | Calibration | CALIBRATION | Calibrate | CALIBRATE | Manual Cal | MANUAL CAL | 2-Port Cal | TWO-PORT CAL | Modify Cal Setup | CAL SETUP | Edit Cal Params | TWO-PORT CAL SETUP (mTRL, Coaxial) Dialog Box
Edit Cal Params – TWO PORT CAL SETUP (mTRL, Coaxial) Dialog Box
Reference Impedance
Input the reference impedance.
• Input field defaulted to 50 Ohms.
• Any numerical value accepted, although input values < 0.01 Ohms are converted to 0.01 Ohms.
Dielectric
Enter a value if different than the default.
Reference Plane Location
Select from two radio button controlled options:
• Ends of Line 1
• Middle of Line 1
Line Length Representation
Select from three radio button controlled options:
• Effective Length (the free-space equivalent length)
• Delay
• Physical Length
Line Definition
Select two to ten line from the drop-down menu.
• Number of Lines = 2. The Lines 1 and 2 editable parameters appear.
• Number of Lines = 3. The Lines 1 through 3 editable parameters appear.
• Number of Lines = 4. The Lines 1 through 4 editable parameters appear.
• ...
• Number of Lines = 10. The Lines 1 through 10 editable parameters appear.
Line Parameter Definitions
• Line #
• Effective Length (mm) (If Effective Length is selected)
• Enter effective length for each line.
• Delay (ps) (If Delay is selected)
• Enter delay for each line.
• Physical Length (mm) (If Physical Length is selected)
• Enter physical length for each line.
• Loss (dB/mm)
• Enter loss for each line.
• @Frequency (GHz)
• Enter frequency for line loss for each line.
Reflection Component
• Select Reflection Type
• Enforce Passivity – Forces the reflection value to be passive at an intermediate step in the calibration, which rescales the reflection tracking terms.
• Enter Open-like and/or Short-like offset length.
Use Match
• If selected, will display the Match Info button to open the USER DEFINED MATCH DEVICES Dialog Box – mTRL 2-Port VNAs. Also, if selected, enables the use of the match standard during calibration whenever line length deltas are below the phase threshold entered in the MATCH INFO dialog.
Optimal Length Super-Weighting
• Enables the use of an enhanced weighting scheme during the calibration to further emphasize line pairs that have optimal line length deltas. The use of this feature further de-emphasizes non-optimal pairs and reduces the impact of repeatability differences.
Last Loaded Kit Name, Save Kit, Load Kit, Restore Defaults
• Last Loaded Kit Name – Loaded kit name appears in the field. The name can be edited in this field and then saved as another kit.
• Save Kit saves the present cal setup.
• Load Kit – Click opens window to navigate to a desired existing mTRL cal kit file (.mlcf).
• Restore Defaults loads the instrument default values for the Cal Setup.
OK/Cancel:Returns user to the CAL SETUP menu.
TWO PORT CAL SETUP (mSSS, Coaxial) Dialog Box – 2-Port VNAs
• MAIN | Calibration | CALIBRATION | Calibrate | CALIBRATE | Manual Cal | MANUAL CAL | 2-Port Cal | TWO PORT CAL | Modify Cal Setup | CAL SETUP | Edit Cal Params | TWO PORT CAL SETUP (mSSS, Coaxial)
TWO PORT CAL SETUP (mSSS, Coaxial) Dialog Box
Reference Impedance
Input the reference impedance.
• Input field defaulted to 50 Ohms.
• Any numerical value accepted, although input values < 0.01 Ohms are converted to 0.01 Ohms.
Select Cal Type
Select from three radio button controlled options:
• Full 2 Port
• 1 Path 2 Port (1 → 2)
• 1 Path 2 Port (2 → 1)
Through/Reciprocal/S2P Thru Setup
• Through Selected
• Length (mm)
• Input line length in mm.
• Calculator icon displays the AIR EQUIVALENT LENGTH CONVERSION dialog box.
• Allows a thru characterization and generation of an .s2p file.
• Use Generic Anritsu Adapter (check box)
• Checking this box will automatically load a default .s2p file for a generic Anritsu adapter. Note that selecting the checkbox disables the Load S2P for Thru and Characterize Thru buttons.
Port 1 Tab – Short Definition
Number of Shorts
Select number of shorts from 3-10.
Offset Length (mm)
Editable if the Cal Kit Sel selected is “Other”; otherwise it will reflect the offset length of the selected short in the cal kit standard (Kit Info column).
Cal Kit Selection
Select the DUT Connector Type from a drop-down menu list with options of:
• Other
• 0.8 mm-Conn (M)
• 0.8 mm-Conn (F)
• W1-Conn (M)
• W1-Conn (F)
• User-Defined1 (M) through User-Defined32 (M)
• User-Defined1 (F) through User-Defined32 (F)
Kit Info Button
Select displays the STANDARD INFO or USER DEFINED STANDARD dialog box for the selected connector and calibration method that displays the connector calibration coefficients. The dialog box contents depend on the selected connector, Cal Method, and Line Type. The examples show typical standard information dialog boxes.
• Since the STANDARD INFO (mSSS) dialog derives from the SSS calibration kit definition, three shorts are available and the one to be used for the current line in the mSSS table is defined by the Select Short to use field. All of the shorts in the kit can be employed in the mSSS calibration, but each must be assigned to a separate line in the table.
This field (in conjunction with the @Frequency field and the offset length) is used to compute the loss in the short and hence the magnitude of its reflection coefficient. This is mainly relevant for very large offset lengths (> 10 mm) at microwave frequencies or somewhat shorter lengths at millimeter wave frequencies.
@Frequency (GHz)
This field (in conjunction with the loss in dB/mm and the offset length) is used to compute the loss of the offset short (and hence the magnitude of its reflection coefficient) at each frequency. If a non-zero value is entered here, it is treated as the reference frequency fref at which the loss (dB/mm) was defined and the loss at all other frequencies is scaled by sqrt(f/fref). If 0 is entered here, the loss is assumed to be constant with frequency.
Use Match Checkbox
When this box is checked, a match measurement is acquired during the calibration and is used whenever even the collection of offset shorts does not have enough phase separation (value defined within the USER DEFINED MATCH dialog: Electrical line length delta for match use, expressed in degrees). The decision to use the match data is made on a frequency-by-frequency basis. See the MS464XB Calibration and Measurement Guide for more information. This helps increase bandwidth of the calibration, particularly at lower frequencies, if a match standard is available.
When this box is checked, more weight is given to those offset shorts that contribute most to large electrical length deltas and hence to bandwidth of the calibration. More details can be found in the MS464XB Calibration and Measurement Guide. Using this feature can increase the available bandwidth of the calibration, but does reduce immunity to repeatability variances in the setup, so it is not advised in more repeatability challenged scenarios (e.g., fixtures where the short standards are attached by spring force alone).
Port 2 – Short Definition
Identical functions as with the Port 1 Tab above.
OK / Cancel
Click OK to accept the changes and return to the CAL SETUP menu.
Click Cancel to abandon any changes and return to the CAL SETUP menu.
Summary of 2-Port Calibration Setup Dialog Boxes
The table below summarizes the available fields in all 2-port calibration setup dialog boxes. If the dialog box is described above, a link is provided to that description. To view each dialog box, set the CAL METHOD and LINE TYPE menus to the appropriate settings, and then select the Edit Cal Params button. All dialog boxes are named “Two Port Cal Setup (Cal Method, Line Type)”
2-Port Manual Cal Setup Dialog Box Summary – 2-Port VNAs (1 of 11)
Select Cal Type: Full 2 Port, 1 Path 2 Prt (1→2), 1 Path 2 Port (2→1)
Load Type: Broadband Load, Sliding Load
Test Port 1 and Test Port 2 controls are the same.
Test Port DUT Connector: For each selected test port, select one of the following connectors: 0.8 mm-Conn (M), 0.8 mm-Conn (F), W1-Conn (M), W1-Conn (F), V-Conn (M), V-Conn (F), K-Conn (M), K-Conn (F), 2.4 mm (M), 2.4 mm (F), GPC-3.5 (M), GPC-3.5 (F), SMA (M), SMA (F), N-Conn (M), N-Conn (F), N-Conn (75) (M), N-Conn (75) (F), GPC-7, 7/16 (M), 7/16 (F), TNC (M), TNC (F), User-Defined1 (M) through User-Defined32 (M), User-Defined1 (F) through User-Defined32 (F)
1. Test Port Connector Standard Info Button: For each DUT port connector, displays the STANDARD INFORMATION or USER-DEFINED dialog box for the selected connector.
Select Cal Type: Full 2 Port, 1 Path 2 Port (1→2), 1 Path 2 Port (2→1)
Load Type: Broadband Load, Sliding Load
Test Port 1 and Test Port 2 controls are the same.
Test Port DUT Connector: For each test port, select one of the following connectors: 0.8 mm-Conn (M), 0.8 mm-Conn (F), W1-Conn (M), W1-Conn (F), User-Defined 1 (M) through User-Defined 32 (M), User-Defined 1 (F) through User-Defined 32 (F)
Test Port Connector Standard Info Button: For each DUT port connector, displays the STANDARD INFORMATION or USER-DEFINED dialog box for the selected connector.
Select Cal Type: Full 2 Port, 1 Path 2 Prt (1→2), 1 Path 2 Port (2→1)
Load Type: Broadband Load, Sliding Load
Test Port 1 and Test Port 2 controls are the same.
Test Port DUT Connector: For each test port, select one of the following connectors: 0.8 mm-Conn (M), 0.8 mm-Conn (F), W1-Conn (M), W1-Conn (F), User-Defined 1 (M) through User-Defined 32 (M), User-Defined 1 (F) through User-Defined 32 (F)
Test Port Connector Standard Info Button: For each DUT port connector, displays the STANDARD INFORMATION or USER-DEFINED dialog box for the selected connector.
Select Cal Type: Full 2 Port, 1 Path 2 Prt (1→2), 1 Path 2 Port (2→1)
Test Port 1 Connector Type Area
Select the DUT Connector Type from a drop-down menu list with options of:
0.8 mm-Conn (M), 0.8 mm-Conn (F), W1-Conn (M), W1-Conn (F), User-Defined1 (M) through User-Defined32 (M), User-Defined1 (F) through User-Defined32 (F)
Test Port 1 Connector Standard Info Button
Select displays the STANDARD INFO dialog box for the selected connector and calibration method that displays the connector calibration coefficients. The dialog box contents depend on the selected connector, Cal Method, and Line Type. The following link shows a typical standard information dialog box for broadband cal.
Identical function as with the Test Port 1 Connector Area above. Select the DUT Connector Type from a drop-down menu list.
Test Port 2 Connector Standard Info Button:
Identical function as with the Test Port 1 Connector Standard Info Button above. Select displays the STANDARD INFO dialog box for the selected DUT Connector.
Breakpoint Frequency
67 GHz is recommended for the 3656 (1 mm) calibration kit.
80 GHz is recommended for the 3659 (0.8 mm) calibration kit.
Through/Reciprocal/S2P Thru Setup Area:
Through selected allows user entries for length, line impedance, line loss, and frequency. Reciprocal selected allows user entry for length. S2P Thru selected provides buttons for loading, viewing, and characterization (to generate S2P files).
OK / Cancel: OK to accept the changes or Cancel to abandon any changes and return to the CAL SETUP menu.
Dielectric: Enter a value if different than the default.
Line Length Representation: Effective Length, Delay, Physical Length
Number of Bands: 1 through 5
Band 1-5 Type: Line, Match; Device Effective Length (mm)/Match; If Device 1 = Match, Match Info button displays USER DEFINED MATCH DEVICES dialog box for selected calibration kit. USER DEFINED MATCH DEVICES Dialog Box – TRL/TRM
Reflection Type: Open-Like Short-Like.
Cal A Band Breakpoint: Calculate Recommended Value, Use Recommended Frequency (GHz), Define New Frequency (GHz).
Last Loaded Kit Name – TRL/TRM Cal Kit file name last loaded
Save Kit: Provides the ability to save calibration kit data. Click opens a SAVE CAL KIT window to save current settings to an LRL/LRM-TRL/TRM cal kit file (.lcf) in a desired location.
Load Kit: Provides the ability to recall calibration kit data. Click opens window to navigate to a desired existing LRL/LRM-TRL/TRM cal kit file (.lcf).
TRL/TRM
Non-Dispersive
Same controls and functions as TRL/TRM Coaxial above.
TRL/TRM
Waveguide
Same controls and functions as TRL/TRM Coaxial above with the following changes:
Cutoff frequency (GHz): The TE10 mode cutoff frequency for the waveguide in use.
TRL/TRM
Microstrip
Same controls and functions as TRL/TRM Coaxial above with the following changes:
Microstrip Kit: 10 Mil Kit, 15 Mil Kit, 25 Mil Kit, User-Defined 1 to User-Defined 32
Microstrip Info button: Displays a dialog box for selected calibration method and kit.
Last Loaded Kit Name: Provides the name of the LRL/LRM Cal Kit file that was last loaded.
Save Kit: Provides the ability to save calibration kit data. Click opens a SAVE CAL KIT window to save current settings to an LRL/LRM cal kit file (.lcf) in a desired location.
Load Kit: Provides the ability to recall calibration kit data. Click opens window to navigate to a desired existing LRL/LRM cal kit file (.lcf).
LRL/LRM
Non-Dispersive
Same controls and functions as LRL/LRM Coaxial above.
LRL/LRM
Waveguide
Same controls and functions as LRL/LRM Coaxial above with the following changes:
Cutoff frequency (GHz): The TE10 mode cutoff frequency for the waveguide in use.
LRL/LRM
Microstrip
Same controls and functions as LRL/LRM Coaxial above with the following changes:
Microstrip Kit: 10 Mil Kit, 15 Mil Kit, 25 Mil Kit, User-Defined 1 to User-Defined 32
Microstrip Info button: Displays a dialog box for selected calibration method and kit.
Use Match: If selected, will display the Match Info button to open the USER DEFINED MATCH DEVICES dialog box. Also, if selected, enables the use of the match standard during calibration whenever line length deltas are below the phase threshold entered in the MATCH INFO dialog.
Optimal Length Super-Weighting: Enables the use of an enhanced weighting scheme during the calibration to further emphasize line pairs that have optimal line length deltas. The use of this feature further de-emphasizes non-optimal pairs and reduces the impact of repeatability differences.
Last Loaded Kit Name: Provides the name of the mTRL Cal Kit file that was last loaded.
Save Kit: Provides the ability to save calibration kit data. Click opens a Save Cal Kit window to save current settings to an mTRL cal kit file (.mlcf) in a desired location.
Load Kit: Provides the ability to recall calibration kit data. Click opens window to navigate to a desired existing mTRL cal kit file (.mlcf).
mTRL
Non-Dispersive
Same controls and functions as mTRL Coaxial above.
mTRL
Waveguide
Same controls and functions as mTRL Coaxial above with the following changes:
Cutoff frequency (GHz): The TE10 mode cutoff frequency for the waveguide in use.
mTRL
Microstrip
Same controls and functions as mTRL Coaxial above with the following changes:
Microstrip Kit: 10 Mil Kit, 15 Mil Kit, 25 Mil Kit, User-Defined 1 to User-Defined 32
Microstrip Info button: Displays a dialog box for selected calibration method and kit.
Loss (dB/mm): Used to compute the loss in the short and hence the magnitude of its reflection coefficient.
@Frequency: Used to compute the loss of the offset short (and hence the magnitude of its reflection coefficient) at each frequency.
Use Match: When this box is checked, a match measurement is acquired during the calibration and is used whenever even the collection of offset shorts does not have enough phase separation.
Optimal Offset Length Super-Weighting: When this box is checked, more weight is given to those offset shorts that contribute most to large electrical length deltas and hence to bandwidth of the calibration.
Test Port 1 and Test Port 2 controls are the same.
mSSS
Non-Dispersive
Same controls as mSSS Coaxial above.
mSSS
Waveguide
Same controls as mSSS Coaxial with the following changes:
Cal Kit Selection: User-Defined1 through User-Defined32.
Cutoff Frequency: The cutoff frequency for the TE10 mode in the waveguide size being used for this calibration (all shorts are assumed to have the same aperture dimensions and hence the same cutoff frequency).
Dielectric: The dielectric constant of any filling material in the waveguide interface being used for the calibration (assumed 100% fill; default value is 1).
mSSS
Microstrip
Same controls as mSSS Coaxial with the following changes:
Cal Kit Selection: User-Defined1 through User-Defined32.
Microstrip Kit: 10 Mil Kit, 15 Mil Kit, 25 Mil Kit, User-Defined 1 to User-Defined 32
Microstrip Info button: Displays MICROSTRIP INFO dialog box for selected calibration method and kit.
