Micro Harmonics produces high-quality millimeter wave products including millimeter wave isolators and millimeter wave circulators operating from 50 GHz to more than 330 GHz. These are the most technologically advanced millimeter wave products on the market today. They are optimized for extended bandwidth and the industry’s lowest insertion loss. Our WR-3.4 isolators have typical insertion loss of less than 2 dB in the band 220-330 GHz! All of our ferrite components are 100% made in the USA and can be sole sourced in US government acquisitions.

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millimeter wave components

Millimeter Wave Products



Building the Future with NASA

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Micro Harmonics has been awarded a NASA Phase II SBIR contract for the development of cryogenic  millimeter wave isolators. The contract runs June 2019 through June 2021. Cryogenic isolators will be developed in every standard waveguide band from WR-15 (50-75 GHz) to WR-3.4 (220-330 GHz). A line of voltage variable attenuators will also be developed in the bands WR15 through WR-8. The attenuators will cover full waveguide bands.

Previous collaborations with NASA include Phase I and Phase II SBIR contracts for the development of millimeter-wave isolators and circulators and a separate Phase I contract for the development of isolators optimized for cryogenic applications.


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Micro Harmonics components are used in a wide variety of commercial and government applications. NASA uses them in earth and planetary atmospheric observation systems. Our millimeter wave products are used in military applications such as compact range radar, imaging, covert communication, and chemical and bio-agent detection. Our components are also useful in a wide variety of scientific instrumentation for plasma diagnostics (ITER), chemical spectroscopy, biomaterial analysis, radio astronomy, biomedical systems, portal security scanners, high-frequency data links, and much more. Micro Harmonics is proud to provide the technology our military, scientific community, and medical providers use to save lives, protect lives, and learn more about the world and universe in which we live. Contact Micro Harmonics today to learn more about our innovative millimeter wave products.

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