Virginia Diodes

Virginia Diodes

Virginia Diodes, Inc. (VDI) is a US-based manufacturer of millimeter-wave and terahertz test and measurement instruments, headquartered in Charlottesville, Virginia. The company specializes in solid-state sources, detectors, and frequency extension modules that extend the range of conventional microwave test equipment into the millimeter-wave (30 GHz–300 GHz) and terahertz (300 GHz–3 THz) frequency ranges. VDI's products are a standard tool in cutting-edge research programs and advanced communications system development worldwide.

Virginia Diodes manufactures signal generator extension modules compatible with instruments from major test equipment vendors, enabling high-frequency signal generation and analysis beyond the native range of standard vector network analyzers (VNAs) and signal generators. Their waveguide-based components cover WR-bands from WR-10 down to sub-millimeter frequencies.

Key Product Lines

• Signal generator extension modules — frequency multiplier chains for extending VNA and signal analyzer coverage into mm-wave and THz bands
• Millimeter-wave detectors and receivers — for power measurement and signal detection at high frequencies
• VNA extender modules — for S-parameter measurements across mm-wave frequency bands
• Terahertz imaging and spectroscopy systems — for materials characterization, non-destructive testing, and security imaging

Industries Served

Virginia Diodes equipment is used in academic and government research laboratories, aerospace and defense electronics development, 5G and 6G wireless communications research, automotive radar system development, materials science, pharmaceutical analysis, and security imaging applications requiring test and measurement capabilities at millimeter-wave and terahertz frequencies.