Virginia Diodes 5fe0d5c037947

Virginia Diodes

VDI manufactures state-of-the-art test and measurement equipment for mmWave and THz applications, including vector network analyzer, spectrum analyzer, and signal generator extension modules.
979 Second Street, S.E. Suite 309
Charlottesville, VA 22902-6172
434.297.3257
434.297.3258

More Info on Virginia Diodes

Virginia Diodes 5fe0d5c037947

VDI manufactures state-of-the-art test and measurement equipment for mm-wave and THz applications. These products include Vector Network Analyzer, Spectrum Analyzer and Signal Generator Extension Modules that extend the capability of high performance microwave measurement tools to higher frequencies. VDI's component products include detectors, mixers, frequency multipliers and custom systems for reliable operation at frequencies between 50 GHz and 2 THz. All VDI components include in-house fabricated GaAs Schottky diodes and microelectronic filter structures.

VDI was founded in 1996 by Dr. Thomas W. Crowe, VDI CEO & President. From 1996 to 2001 VDI sold only Schottky Diodes for scientific applications including radio astronomy and high frequency radar. During this period, VDI operated as a University of Virginia (UVa) spin-off and utilized the facilities at the University. Around 2001 VDI expanded to include offices in downtown Charlottesville, VA and started selling complete mixer, detector and multiplier products for 50-1000 GHz operation. By 2004 VDI started selling sub-systems such as THz Transmitter & Receiver modules. Also in 2004 all VDI operations moved to the 979 Second Street location in Charlottesville and VDI stopped utilizing UVa facilities. Since then VDI continued to grow the number of product offerings and employees needed to satisfy a broad range of terahertz and millimeter wave customers. Today, VDI employs over 50 engineers, technicians and administrative staff working in a high tech 20,000 sq. ft. facility.

Videos

Spectral Stitching Gooses Radar Component Test to Instantaneous Bandwidth of 7
NI/Emerson’s Vector Signal Transceiver forms the foundation of a functional and parametric test setup for a range of RF radar system components.
Sept. 25, 2025

Articles

Promo 1
There’s no underestimating the importance of filtering in RF system design. This report contains the latest innovations in the art of RF filtering and spectrum management.
May 1, 2023
Keysight Technologies
0522 Mw Keysight Broadband Vna Promo
Keysight's VNA solution, developed in collaboration with three other companies, efficiently characterizes on-wafer devices and circuits, speeding deployment of 5G/6G MMICs.
May 26, 2022
Kasto80 | Dreamstime.com
Ims Conference Overview Promo
There's many reasons to attend IMS 2021's live event in Atlanta, not the least of which is the juicy smorgasbord of technical sessions on offer. This article glimpses just a few...
May 31, 2021
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Wireless technology has become a dominant force in our everyday lives, yet some are looking way ahead with the hope of pushing the envelope further to create tomorrow’s communications...
Nov. 4, 2019
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While 5G represents the next generation of wireless communications, a new sub-terahertz testbed is already setting the stage for 6G research.
Oct. 23, 2019
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Multiple factors should be weighed when designing and testing hardware for 5G and 802.11ay. A mmWave simulation case study, along with the use of a wideband R&D mmWave test bed...
July 19, 2019
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During a time when defense electronics technology is strong, the industry readies itself for the global adoption of 5G and electronically steered vehicles.
May 14, 2019
Waveguide Filters Sort Millimeter-Wave Signals
These rugged rectangular waveguide filters provide low-loss passbands from 27 to 86 GHz for a growing number of applications at mmWave frequencies.
Jan. 30, 2019
Submillimeter-Wave PA MMICs Stack FETs to Shrink Size
A pair of MMIC amplifiers leverage stacked-FET architectures to achieve high gain and high saturated output power at the upper limits of the mmWave frequency range.
July 6, 2018
Bandpass
Two different fabrication approaches were compared for the formation of WR-3 waveguide bandpass filters.
Jan. 30, 2018

Additional content from Virginia Diodes

Anritsu
Here's this week's selection of some of the most interesting new products that have been launched of late.
April 17, 2023
Image courtesy of Christopher Sebela Creative Commons
Keysight Technologies said that it had developed a 1.5 THz network analyzer for researchers at the Chalmers University of Technology in Sweden.
Oct. 6, 2016
41mpromo.jpg
Frequency synthesizers continue to integrate more functionality into ever-smaller packages with lower power consumption.
Aug. 25, 2016
Clouds
A dual-receiver system was developed for scanning terahertz frequencies on board the SOFIA stratospheric space observatory.
June 1, 2016
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Millimeter-wave technology has become more widespread, as evidenced by the large number of higher-frequency products available today. With 5G on its way, millimeter-wave bands...
Jan. 6, 2016
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The performance of RF/microwave systems depends on the performance of the diodes that are incorporated into the system. These devices are available in many shapes and sizes, providing...
Nov. 24, 2015
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A line of high-performance RF/microwave vector network analyzers is available with powerful optional pulse measurement capabilities.
Oct. 10, 2013
The large bandwidths available in certain millimeter-wave frequency bands makes them attractive for use in communications networks that must securely transfer large amounts of...
May 18, 2011
Millimeter-wave technology is providing solutions to meet growing demands for high-data-rate and high-definition-video signals.
Aug. 19, 2010