Our orthomode transducers (OMTs) cover full waveguide bands. They have low insertion loss, low cross polarization coupling, and high isolation. OMTs are now available in WR-8, WR-6.5, WR-5.1, and WR-3.4. Additional OMTs are in various stages of development as indicated in the table.

The graph below shows measured data from our WR-6.5 OMT. The orange and green traces show insertion loss at less than 0.4 dB across the band. The blue
trace shows cross-polarization coupling between the single mode ports and the opposite polarity in the common mode port is less than -60 dB.

The graph below shows measured RF test data from our WR-3.4 OMT. Insertion loss is less than 0.8 dB across the band 220-330 GHz. The cross-polarization coupling is less than -38 dB. (We show the cross-pol coupling as a positive value to fit on the graph.) Isolation is at the 50 dB level. The noise in the isolation data is a remnant of the RF test procedure and related to the quality of the matched load on the common port. The return loss is greater than 18 dB.

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