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Cryogneic 30-50 GHz Orthomode Transducer (OMT)

Image Credit: Chau-Ching Chiong

A 30-50 GHz (50% fractional bandwidth) cryogenic orthomode transducer is fabricated with low insertion loss and cross-polarization. (a) Top view with input circular waveguide port, (b) Bottom view with two rectangular waveguide ports, (c) Assembly in 3-piece split-block assembly.