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QuinStar’s Sources & Frequency Multipliers products include passive and active frequency multipliers extending to 110 GHz. The active frequency multiplier features amplification with integral filter. This state-of-the-art active multiplier is for frequency multiplication and amplification over 8 – 110 GHz. The passive model requires no external bias and features full waveguide bandwidth and low conversion loss.

Additionally, the product line includes phase-locked sources, stable MMW sources, and tunable Gunn oscillators. Finally, QuinStar frequency extenders round out this product line. These units are broadband and sweepable, while offering excellent power flatness and low spurious noise.


These components are useful as part of the LO chain of communication, radar, and instrumentation systems.

Our products are ISO9001:2015 & AS9100 certified for quality design and manufacturing. View our certificates here.

Frequency Multipliers

Active Frequency Multiplier

Gunn Oscillators, Regulators & Modulators

Gunn Regulators and Modulators

Noise Sources

millimeter-wave noise source