GENERAL
Description
VDI's VNA Extenders deliver high performance network analyzer frequency extension into the THz range. Models cover 50 GHz to 1,100GHz with additional bands in development. In addition to our full Transceiver (TxRx) modules, VDI also offers Transmit-Reference (TxRef) modules and Receive only (Rx) modules that deliver optimized performance for specific applications. These modules combine high test port power and exceptional dynamic range to deliver industry leading performance. They are compatible with most network analyzers and can be integrated into probe stations and antenna chambers. Power leveling and sweeping is also supported when used with our PM5 Power Meter.
Options
- Increased test port power (for selected bands)
- Micrometer driven variable attenuators (~0-30dB)
- Configured from 1.2m to 5m cables (Standard configuration is 1.2m, 5m option)
- Waveguide calibration kits
- Extended dynamic range modules for high loss environments
General Specifications
VNA Extension Modules
WM-380 (WR-1.5) to WM-250 (WR-1.0) Mini and WR-28 to WM-570 (WR-2.2)
|
| Description |
Specification |
Connector |
| RF Input |
Typical / Damage, -20 Option (Default) |
10 dBm ± 3 dB / 16 dBm
<20 GHz |
2.9mm (f) |
Typical / Damage, -20 Option (Default)
with -5m option |
2 dBm ± 3 dB / 8 dBm
<20 GHz
|
2.9mm (f) |
| Typical / Damage, -40 Option |
0 dBm ± 3 dB / 6 dBm
<45 GHz |
2.9mm (f) |
| LO Input |
Typical / Damage (Default) |
10 dBm ± 3 dB / 16 dBm
<20 GHz |
2.9mm (f) |
| Typical / Damage, -5M Option |
2 dBm ± 3 dB / 8 dBm
<20 GHz
|
2.9mm (f) |
IF Outputs
(Reference and Measurement) |
Maximum, Direct Connection (279 MHz) |
-9 dBm |
2.9mm (f) |
| Maximum, Controller (7.6 MHz) |
-21 dBm |
2.9mm (f) |
| Test Port |
VDI Precision Flange |
See Flange Diagram |
UG-387/UM |
| Power Supply |
AC Input |
100-240VAC, <3.5A,
50-60 Hz |
U.S. or E.U. |
| DC Output |
9V / 4A |
2.1mm ID x 5.5mm OD
x 9.5mm (f) |
| Operating Temperature |
Typical / Recommended |
25°C / 20-30°C |
- |
| Typical Enclosure Dimensions |
TxRx & TxRef Modules (in.)
WR28 to WR19 |
9.5 x 3.0 x 1.5 |
- |
TxRx & TxRef Modules (in.)
WR15 to WR2.2 |
8.5 x 3.0 x 1.5 |
- |
TxRx & TxRef Modules (in.)
WR28 to WR19, -Atten Option |
Contact VDI |
- |
TxRx & TxRef Modules (in.)
WR28 to WR19, -Atten Option |
8.5 x 3.0 x 1.5 |
- |
Rx Modules (in.)
[New, Serial Number: VNAX 2400 and higher] |
4.75 x 3.0 x 1.5 |
- |
Rx Modules (in.)
[Old, Serial Number: VNAX 2399 and lower] |
3.75 x 3.0 x 1.5 |
|
| Typical Weight |
TxRx & TxRef Modules (lbs.) |
4 |
- |
| Rx Modules (lbs.) |
2 |
- |
General Specifications
VNA Extension Modules
VNA Extension Modules (WR1.5 to WR0.65) - Standard Size, Not Mini
|
| Description |
Specification |
Connector |
| RF Input |
Standard Frequency Input (Typical / Damage) |
10 dBm ± 3 dB / 16 dBm
<20 GHz
|
2.9mm (f) |
Standard Frequency Input (Typical / Damage)
with -5m option |
2 dBm ± 3 dB / 8 dBm
<20 GHz
|
2.9mm (f) |
| High Frequency Input (Typical / Damage) |
0 dBm ± 3 dB / 6 dBm
<45 GHz |
2.9mm (f) |
| LO Input |
Typical / Damage (Default) |
10 dBm ± 3 dB / 16 dBm
<20 GHz |
2.9mm (f) |
| Typical / Damage, -5M Option |
2 dBm ± 3 dB / 8 dBm
<20 GHz
|
2.9mm (f) |
IF Outputs
(Reference and Measurement) |
Maximum, Direct Connection (279 MHz) |
-9 dBm |
2.9mm (f) |
| Maximum, Controller (7.6 MHz) |
-21 dBm |
2.9mm (f) |
| Test Port |
VDI Precision Flange |
See Flange Diagram |
UG-387/UM |
| Power Supply |
AC Input |
100-240VAC, <3.5A,
50-60 Hz |
U.S. or E.U. |
| DC Output |
See VDI-175 Datasheet |
| Operating Temperature |
Typical / Recommended |
25°C / 20-30°C |
- |
| Typical Enclosure Dimensions |
TxRx & TxRef Modules (in.)
|
11 x 5 x 3 |
- |
Rx Modules (in.)
|
8 x 5 x 3 |
- |
| Typical Weight |
TxRx & TxRef Modules (lbs.) |
9 |
- |
| Rx Modules (lbs.) |
4 |
- |
Contact [email protected] for more information.
VNAX
Vector Network Analyzer (VNA) Extenders - Summary of Specifications
|
Waveguide Band |
Frequency Coverage
(GHz) |
Dynamic
Range
(BW=10Hz,dB) |
Test Port Power
(dBm, typical) |
Stability (typical) |
Test Port Input Limit (estimate, dBm, damage)
TxRx, TxRef † |
Directivity (dB, typical) |
| Standard |
Extended‡ |
Typical
|
Minimum
|
Magnitude (±dB) |
Phase
(±deg) |
| WR28 |
26-40 |
- |
120 |
110 |
13 |
0.15 |
2 |
33 |
30 |
| WR19 |
40-60 |
- |
120 |
105 |
13 |
0.15 |
2 |
31 |
30 |
| WR15 |
50-75 |
47-77 |
120 |
110 |
13 |
0.10 |
1.5 |
30 |
30 |
| WR12 |
60-90 |
55-95 |
120 |
110 |
18 |
0.10 |
1.5 |
30 |
30 |
| WR12 SE Option |
60-90 |
55-90 |
120 |
110 |
13 |
0.10 |
1.5 |
30 |
30 |
| WR10 |
75-110 |
67-115 |
120 |
110 |
18 |
0.10 |
1.5 |
30 |
30 |
WR10
SE Option |
75-110 |
67-110 |
120 |
110 |
-1 |
0.10 |
1.5 |
20 |
30 |
| WR8.0 |
90-140 |
- |
120 |
110 |
16 |
0.15 |
2 |
30 |
30 |
| WR6.5 |
110-170 |
- |
120 |
110 |
13 |
0.25 |
4 |
30 |
30 |
| WR5.1 |
140-220 |
- |
120 |
110 |
6 |
0.25 |
4 |
30 |
30 |
WR5.1
(EB Option) |
140-220 |
130-220 |
120 |
110 |
6 |
0.25 |
4 |
30 |
30 |
| WR4.3 |
170-260 |
- |
115 |
110 |
4 |
0.3 |
4 |
28 |
30 |
| WR3.4 |
220-330 |
- |
115 |
105 |
1 |
0.3 |
6 |
26 |
30 |
WM-710
(WR2.8) |
260-400 |
- |
100 |
80 |
-10 |
0.5 |
6 |
16 |
30 |
WM-570
(WR2.2) |
330-500 |
325-500 |
110 |
100 |
-3 |
0.5 |
6 |
10 |
30 |
WM-380
(WR1.5) |
500-750 |
- |
100 |
80 |
-25 |
0.4 |
4 |
-3 |
30 |
WM-380
(WR1.5)
Mini
|
500-750 |
- |
110* |
95* |
-12 |
0.4 |
4 |
7 |
30 |
WM-250
(WR1.0) |
750-1100 |
- |
65 |
45 |
-30 |
0.5 |
6 |
-3 |
30 |
WM-250
(WR1.0)
Mini |
750-1100 |
- |
95* |
75* |
-23 |
0.5 |
6 |
-3 |
30 |
WM-164
(WR0.65**) |
1100-1500 |
- |
60* |
40* |
-45 |
1 |
20 |
-3 |
30 |
*The dynamic range specifications assume that low phase sources are used, like those used in the modern Keysight PNA / PNA-X analyzers
with DDS synthesizers. While compatible, other VNAs may reduce dynamic range.
**WM164 (WR0.65) performance is specified for a TxRx-Rx configuration. Performance of a TxRx-TxRx configuration is estimated to have a
~15 dB degradation of dynamic range and may additionally require the use of a mmWave controller.
†Test Port Input Powers exceeding the peak Test Port Power of the TxRx or TxRef module will compress the module.
General Notes:
Extension modules are compatible with all modern VNAs. Please consult with VDI to discuss VNA and module configurations that will yield the best performance for your application.
Technical Notes:
1. Test Port Power is typical, reduced power is possible at band edges.
2. Stability is specified for 1 hour after system warm-up, in stable environment with ideal cables.
3. Specifications assume a through measurement with two TxRx heads.
4. Specifications are measured on a Keysight PNA/PNAX with front panel connection at 25°C typical.
5. The dynamic range (RBW=10Hz) is measured by first connecting two TxRx modules together and normalizing the un-calibrated S21 & S12. The heads are then disconnected and terminated with a waveguide short. The RMS average of 10 sweeps of the measured S21 & S12 gives the system dynamic range..
6. Typical Module Dimensions exclude testport (2" standard testport for all modules except WM250 (WR1.0), where a 1" testport is used)
‡Where noted, Extended Frequency Coverage applies; module performance within the standard band conforms to standard specifications while performance in the extended regions can be degraded as follows:
-The minimum and typical dynamic range is degraded by 10dB or less, compared to the specification for the standard band, with the exception of WR5.1.
-For WR5.1, the minimum dynamic range is 95dB (15dB degradation compared to the standard band specification).
-The test port power typical across the extended band is degraded by 5 dB or less compared to the specification for the standard band.
Contact [email protected] for more information.
CUSTOM VNAX
VDI continues to improve its VNAX product line by focusing on reaching higher frequencies and powers.
235 GHz High Test Port Power VNAX
This custom system achieves > 10dBm test port power across ~ 228-242 GHz while maintaining similar dynamic range, stability and directivity as our standard WR4.3VNAX. VDI is able to offer narrow band/high test port power modules like the 235 GHz Custom High Test Port Power VNAX module. Dynamic Range and Test Port Power performance is shown below:
Contact [email protected] for more information.
CAL KITS
Calibration Kits
VDI offers banded waveguide calibration kits for s-parameter calibration of our extension modules. Two different calibration techniques are offered dependent upon the frequency of operation: TRL (Through-Reflect-Line) calibrations for WR28 through WR3.4; SOLT (Short-Open-Load-Through) calibrations for WR2.8 through WR1.0. VDI also makes available both Type A (legacy) and Type B (current) versions of the calibration standards to support both QW (Quarter Wave Delay Shim) and QD (Quarter Wave Delay Short) standards. These standard versions are described here. Electronic calibration kit definitions are available for download below.
Downloads
Use the image below to identify the correct type of calibration kit needed.
Type A Calibration Kits have been discontinued but Type A Calibration Kit Definitions may still be downloaded here.
Questions? Contact VDI at [email protected]
DUAL SOURCE
Dual Source Module Option
The Dual Source (DS) option for VDI VNAX modules adds a second source module and a directional coupler into the standard TxRx Module (see block diagram below). This enables two-tone measurements to allow users to characterize device linearity. VNAX-DS modules have slightly reduced test port power and dynamic range compared to standard VNAX modules. VNAX-DS modules conform to all other standard
S-parameter performance specifications. Specifications listed below are specific for the DS option. For setup instructions or other information about our VNAX-DS Modules, please Contact VDI. For more information on VDI VNAX Modules, please refer to VDI-707.1 (VNAX Product Manual) located under the Resources tab.
| VNAX-DS Dual Source Specifications |
Waveguide Band
(GHz) |
Frequency Band
(GHz) |
Dynamic Range
(BW=10Hz,dB) |
Test Port Power
(dBm, typ.) |
| Standard |
Extended‡ |
Typical |
Minimum |
Source 1 |
Source 2 |
| WR15 |
50-75 |
47-77 |
115 |
105 |
10 |
5 |
| WR12 |
60-90 |
55-95 |
115 |
105 |
14 |
9 |
| WR10 |
75-110 |
67-115 |
115 |
105 |
13 |
7 |
| WR8.0 |
90-140 |
- |
110 |
100 |
12 |
7 |
‡Where noted, Extended Frequency Coverage applies; module performance within the standard band conforms
to standard specifications while performance in the extended regions can be degraded as follows:
-The minimum and typical dynamic range is degraded by 10dB or less, compared to the specification for the
standard band.
-The test port power typical across the extended band is degraded by 5dB or less compared to the specification
for the standard band.
TRIPLEXER
Triplexer Option
For Rx modules, Virginia Diodes offers a triplexer option that allows the user to combine DC, LO, and IF signals onto a single cable. The triplexer can be mounted on the top of the Rx module. To mount the triplexer assembly to the Rx module, the Rx module must be configured with appropriate mounting holes, as shown below.
See 2D drawing of Rx modules (with ~4.75" x 3.0" x 1.5" enclosures) here.
NOTE: A +15V Power Supply may be needed when using long cables (up to ~5m) with the Triplexers. A +15V Power Supply may be shipped for use with certain VNAX modules, when purchased with a Triplexer.
Contact VDI for additional information and details.
DUAL RX
Dual RX Option
For VDI Mini Rx Modules, VDI offers a Dual Rx configuration. The Dual Rx Module integrates two Rx chains in the same enclosure, with 1.375” center-to-center spacing between the test ports. Each Rx chain meets the standard specifications for Rx modules.
VDI Dual Rx Specifications
|
Description
|
WR19 |
WR15
|
WR12
|
WR10
|
WR8.0 |
WR6.5
|
WR5.1
|
| RF Frequency Band (GHz) |
40-60 |
50-75 |
60-90 |
75-110 |
90-140 |
110-170 |
140-220 |
Test Port Input Power Limits
(Compression/ Damage, High Sensitivity Operation) |
-10 / 0 |
-10 / 0 |
-10 / 0 |
-10 / 0 |
-10 / 0 |
-10 / 0 |
-10 / 0 |
| LO Harmonic Factor |
4 |
6 |
6 |
6 |
12 |
12 |
12 |
| LO Input Power (typical, +/-3 dB) |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
| Description |
WR4.3 |
WR3.4 |
WM710
(WR2.8) |
WM570
(WR2.2) |
WM380
(WR1.5) |
WM250
(WR1.0) |
|
| RF Frequency Band (GHz) |
170-260 |
220-330 |
260-400 |
330-500 |
500-750 |
750-1,100 |
|
Test Port Input Power Limits
(Compression/ Damage, High Sensitivity Operation) |
-10 / 0 |
-10 / 0 |
-10 / 0 |
-20 / 0 |
-10 / 0 |
-20 / -10 |
|
| LO Harmonic Factor |
24 |
24 |
24 |
36 |
54 |
72 |
|
| LO Input Power (typical, +/-3 dB) |
2 |
2 |
2 |
2 |
2 |
2 |
|
Contact VDI for additional information and details.
RESOURCES
Product Manuals and Specifications
Mechanical Drawings
WM-164 (WR-0.65) Standard Size Drawings
TxRx and TxRef with footplate: .pdf .stp
WM-250 (WR-1.0) Standard Size Drawings
TxRx and TxRef with footplate: .pdf .stp
WM-380 (WR-1.5) Standard Size Drawings
WM-250 (WR-1.0) Mini Drawings
Rx without footplate: .pdf .stp
WM-380 (WR-1.5) to WR-250 (WR-1.0) Mini and WR-15 to WM-570 (WR-2.2) Drawings
TxRx with Internal Attenuator Option and footplate: .pdf .stp
TxRx with Internal Attenuator Option without footplate: .pdf .stp
TxRx and TxRef with footplate: .pdf.stp
TxRx and TxRef without footplate: .pdf .stp
Rx with footplate (Serial Number: VNAX 2400 and higher): .pdf .stp
Rx without footplate (Serial Number: VNAX 2400 and higher): .pdf .stp
Rx with footplate (WR1.0 Only, Serial Number: VNAX 2400 and higher): .pdf .stp
Rx without footplate (WR1.0 Only, Serial Number: VNAX 2400 and higher): .pdf .stp
Rx with footplate (Serial Number: VNAX 2399 and lower):
.pdf .stp (Discontinued)Rx without footplate (Serial Number: VNAX 2399 and lower):
.pdf .stp (Discontinued)
WR15 to WR10 Dual Source Module Drawings
