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Product
Frequency Multipliers (WR and D Series)
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VDI offers a broad range of millimeter-wave varistor mode, passive frequency multipliers based on planar GaAs Schottky diode technology. Frequency doublers and triplers are used to extend the frequency coverage of microwave and millimeter-wave sources.
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Product
Signal Generator Extension Modules
SGX
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Virginia Diodes, Inc. (VDI) Signal Generator Extension (SGX) modules provide high performance frequency extension of microwave signal generators into the THz range. VDI SGX modules offer full waveguide band coverage and are available from WR15 (50 to 75 GHz) to WR1.0 (750 to 1100 GHz) with additional bands under development. This turn-key, sweepable solution is compatible with any microwave signal generator that meets the input frequency and power requirements.
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Product
Custom Transmitter Modules
AMC and TX
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Transmit systems are designed for either high-power or broadband operation.
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Product
Spectrum Analyzer Extension Modules
SAX
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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
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Product
Mixers
EHM and SHM
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VDI offers subharmonically-pumped mixers (SHM) and even-harmonic mixers (EHM) for a variety of applications between 50 GHz and 1700 GHz. These mixers use only planar and/or integrated diodes and provide state-of-the-art performance.
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Product
Compact Transmitter Module
AMC-I
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Virginia Diodes'' Signal Generator Extension Modules (SGXs) provide high performance frequency extension of microwave signal generators into the THz range. VDI now offers integrated Amplifier / Multiplier Chains that provide industry leading performance in a compact package.
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Product
Waveguide Amplifiers
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VDI offers waveguide amplifiers for various applications. Waveguide amplifiers are able to boost a small input RF signal to a large output RF signal. For sample data on waveguide amplifiers, please refer to the Waveguide Amplifier Product Manual (also located under Resources). Please contact VDI for more information.
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Product
Compact Converters
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Virginia Diodes offers compact converters (CCs) for frequency up and down-conversion. These converters are easy to use and well suited for high performance up and down conversion of wide band modulated millimeter-wave signals. VDI CCs offer full waveguide band coverage and are available from WR28 (22.5-40 GHz) to WR2.2 (330-500 GHz) with additional CCs under development. Compact converters can typically be delivered within 9-11 weeks ARO or less. Contact VDI for more information.
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Product
Vector Network Analyzer Extenders
VNAX
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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. VDI modules come in a variety of form factors and configurations including our original Standard-size Modules and new Mini Modules that reduce volume up to 75%. 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.
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Product
Band Pass Filters
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VDI offers up-converter modules for communication applications. The double sideband nature of the up-converter modules makes filtering necessary. VDI has designed filters to filter one sideband and preserve signal modulation. These filters offer low passband insertion loss and high out-of-band rejection. Custom filters may be available upon request. NRE (non-recurring engineering) fee may be required.
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Product
Detectors
ZBD
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VDI offers zero biased detectors (ZBD) for a variety of mmWave and THz applications. These detectors offer full band performance without bias.
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Product
Planar-Doped Barrier Diode Detector, 10 MHz to 33 GHz
8473D
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The Keysight 8473D is a high-performance detector using a gallium arsenide, planar-doped barrier detecting element. It features extremely flat frequency response over its entire band of operation and very good frequency response stability versus temperature. The Keysight 8473D is also very rugged with high resistance to ESD damage. An optimum square-law load and positive polarity output are available as special options (consult your local Keysight representative).
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Product
Compact Receiver Module
MixAMC-I
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Virginia Diodes'' standard Spectrum Analyzer Extension Modules (SAXs) provide high performance broadband down-conversion and frequency extension of microwave specturm analyzers into the THz range. VDI now offers integrated MixAMC modules that provide industry leading performance in a compact package. These integrated MixAMC modules are used to down-convert millimeter-wave / THz signals only. Spectrum Analyzer Extension mode is not currently available for the MixAMC-I products. Integrated MixAMC modules utilize a low frequency LO input (<20 GHz) and have a seprate IF output port. Integrated MixAMC modules configured for high IF bandwidth may be available upon request.
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Product
Low-Barrier Schottky Diode Detector, 10 MHz to 18 GHz
8473B
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The Keysight 8473B Low-Barrier Schottky Diode (LBSD) detector has been widely used for many years in a variety of applications including leveling and power sensing. It offers good performance and ruggedness. Matched pairs (Option 001) offer very good detector tracking.
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Product
Low-Barrier Schottky Diode Detector, 10 MHz to 26.5 GHz
8473C
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The Keysight 8473C Low-Barrier Schottky Diode (LBSD) detector has been widely used for many years in a variety of applications including leveling and power sensing . It offers good performance and ruggedness. Matched pairs (Option 001) offer very good detector tracking.
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Product
Waveguide Detector, 26.5 to 40 GHz
R422C
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The Keysight R422C is an 26.5 to 40 GHz GaAs planar-doped barrier diode detector. This waveguide detector has negative output polarity.
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Product
Planar-Doped Barrier Diode Detector, 10 MHz to 12 GHz
8471E
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The Keysight 8471E is a low-cost, planar-doped barrier detector offering excellent performance from 10 MHz to 12 GHz. It has an SMA male input connector and an SMC male output connector.
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Product
Low-Barrier Schottky Diode Detector, 0.01 to 18 GHz
33330B
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The Keysight 33330B low-barrier schottky diode detector has been widely used for many years in a variety of applications including leveling and power sensing. It offers good performance and ruggedness. Matched pairs (Option 001) offer very good detector tracking.
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Product
Low-Barrier Schottky Diode Detector, 10 MHz to 12.4 GHz
423B
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The Keysight 423B Low-Barrier Schottky Diode detector has been widely used for many years in a variety of applications including leveling and power sensing. It offers good performance and ruggedness. Matched pairs (Option 001) offer very good detector tracking. A video load (Option 002) extends the square-law region to at least 0.1 mW (-10 dBm).
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Product
Low-Barrier Schottky Diode Detector, 10 MHz to 26.5 GHz
33330C
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The Keysight 33330C low-barrier schottky diode detector has been widely used for many years in a variety of applications including leveling and power sensing. It offers good performance and ruggedness. Matched pairs (Option 001) offer very good detector tracking.
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Product
Millimeter Wave Zero Bias GaAs Schottky Diode
HSCH-9161
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The HSCH-9161 is suitable for medium-low barrier, zero bias detector applications. The HSCH-9161 is functional through W-band (110 GHz) and can be mounted in microstrip, finline, and coplanar circuits.
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Product
Low-Barrier Schottky Diode Detector, 10 MHz to 18 GHz
8470B
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The Keysight 8470B 18 GHz Low-Barrier Schottky Diode (LBSD) detector has been widely used for many years in a variety of applications including leveling and power sensing. It offers good performance and ruggedness. Matched pairs (Option 001) offer very good detector tracking. A video load (Option 002) extends the square-law region to at least 0.1 mW (-10 dBm).
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Product
TVS Diodes
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Power TVS diodes provide outstanding protection for both alternating current and direct current power line applications by a Power TVS diode in a surface mount package. When compared to other devices, such as MOVs, power TVS diodes provide much better protection. Bourns provides a broad voltage range of devices with surge current ratings ranging from 3, 6, 10, and 15 kA to suit a variety of applications.
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Product
Low-Barrier Schottky Diode Detector, 10 MHz to 18 GHz
8472B
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The Keysight 8472B Low-Barrier Schottky Diode (LBSD) detector has been widely used for many years in a variety of applications including leveling and power sensing. It offers good performance and ruggedness. Matched pairs (Option 001) offer very good detector tracking. A video load (Option 002) extends the square-law region to at least 0.1 mW (-10 dBm).
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Product
Diode Lasers
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The large spectral coverage of our diode lasers combined with the compact form factor, direct modulation capability (up to 150 MHz), true off during modulation (>70 dB aspect ratio), and integrated spectral clean-up filters make them ideal for applications in high resolution bioimaging, flow cytometry, optogenetics and quantum technologies.
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Product
Laser Diode
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A laser diode, also known as an injection laser or diode laser, is a semiconductor device that produces coherent radiation (in which the waves are all at the same frequency and phase) in the visible or infrared (IR) spectrum when current passes through it.
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Product
Laser Diode
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Yisinc Optical Technology Co., Ltd
Laser diode is an efficient radiation source for CW and pulsed operations.
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Product
Diode Submounts
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Ultra-precise patterning of thin film metals on dielectrics with high thermal conductivity are used for diode submount applications. Via the acquisition of Ion Beam Milling, Inc., SemiGen is the industry leader for laser diode submount fabrication. As each application is different, we work with customers to develop a custom design that perfectly fits their requirements. We have experience producing circuits utilizing substrates of varying thicknesses with high thermal conductivity such as alumina (Al), aluminum nitride (AlN), and beryllium oxide (BeO). SemiGen can deliver laser diode submounts with or without Au/Sn pads depending on your needs.
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Product
Diode Module Scanners
Scan500
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Frothingham Electronics Corporation
The Scan500 scanners are add-on scanners for diode modules, to be used with a tester such as the FEC200.
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Product
Diode Laser Spectroscopy
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Diode Laser Spectroscopy by Mesa Photonics: Herriott Cell and OEM laser diode controller boards.





























