Spectrum Analyzer Extension Modules
Description
Virginia Diodes, Inc. (VDI) Spectrum Analyzer Extension (SAX) modules provide high performance broadband down-conversion and frequency extension of microwave spectrum analyzers into the THz range. VDI SAX modules offer full waveguide band coverage and are available from WR28 (26 to 40 GHz) to WR1.0 (750 to 1100 GHz) with additional bands under development.
For spectrum analyzer extension mode, this turn-key, sweepable solution is compatible with most modern spectrum analyzers with external mixer option. For block down- and up-conversion, the SAX modules can be driven by an LO signal generator that meets the input frequency and power requirements. Contact VDI for spectrum analyzer extension compatibility.
Standard Features
– Full waveguide band coverage
– Low-conversion loss and noise figure
– Broadband IF up to 40 GHz for block down-conversion.
– 6″ x 3.5″ x 1.5″ enclosure suitable for standalone operation or mounting on optical tables and probes
– 9V DC power supply included
Options
– IF input port for block up-conversion
– Amplifiers and filters for use with up-conversion option
– External Micrometer driven variable attenuator (~0-30dB)
– Output horn antenna for free space coupling
– Waveguide test port extensions (1″ and 2″ available)
– High Sensitivity (Please contact VDI for more information)
| VDI Mini SAX Standard Product List | |||
| VDI Part # | Band (GHz) |
| Maximum IF Frequency (Typical, GHz)† |
| Intrinsic Mixer*,** | |||
| WR0.65SAX-M | 1,100 – 1,500 | 33 | 40 |
| WR1.0SAX-M | 750 – 1,100 | 25 | 40 |
| WR1.5SAX-M | 500 – 750 | 18 | 40 |
| WR2.2SAX-M | 330 – 500 | 14 | 40 |
| WR2.8SAX-M | 260 – 400 | 13 | 40 |
| WR3.4SAX-M | 220 – 330 | 12 | 40 |
| WR4.3SAX-M | 170 – 260 | 11 | 26 |
| WR5.1SAX-M | 140 – 220 | 11 | 22 |
| WR6.5SAX-M | 110 – 170 | 10 | 17 |
| WR8.0SAX-M | 90 – 140 | 10 | 14 |
| WR10SAX-M | 75 – 110 | 10 | 11 |
| WR12SAX-M | 60 – 90 | 10 | 9 |
| WR15SAX-M | 50 – 75 | 10 | 7.5 |
| WR19SAX-M | 40 – 60 | 9 | 6 |
| WR28SAX-M | 26 – 40 | 9 | 4 |
*Intrinsic mixer conversion loss is measured before any IF amplification.
**Maximum conversion loss of WR-15, WR-12 and WR-10 SAX-M is 4dB at the
High IF Port after IF amplification.
† For block down-conversion mode only. Maximum IF bandwidth is limited to 20 GHz when
up-conversion option is added.
For more information about the Displayed Average Noise Level (DANL), please refer to the
SAX Product manual located on the Resources tab.
Mechanical Drawings
For Mini SAX (SAX 900 and higher):
WR28 to WR19 (with feet): .pdf and .stp
WR28 to WR19 (without feet): .pdf and .stp
WR15 to WM-250 (with feet): .pdf and .stp
WR28 to WR19 (with feet): .pdf and .stp
WR28 to WR19 (without feet): .pdf and .stp
WR15 to WM-250 (with feet): .pdf and .stp
Relevant Links
Compatible with Keysight Signal Analyzers:
VDI SAX modules are compatible with Keysight PXA, MXA, and EXA signal analyzers. Click here for more information.