Micro Harmonics has introduced OT028, a new WR-2.8 orthomode transducer designed for high-frequency millimeter-wave and sub-THz systems that require broad bandwidth, low loss, and strong polarisation separation.
Developed under a NASA Small Business Innovation Research (SBIR) program, the OT028 operates from 260-400GHz and extends the company’s orthomode transducer portfolio further into the sub-THz range. The component is intended for applications such as advanced communications research, radiometry, high-frequency testbeds, and scientific instrumentation, where polarization performance and efficient signal handling can directly affect system results.
Orthomode transducers play an important role in front-end architectures by separating or combining two orthogonal polarizations within a single waveguide structure. In practical terms, that allows engineers to support dual-polarized operation while maintaining the electrical performance needed for sensitive or bandwidth-intensive systems. At high frequencies, that combination of bandwidth, isolation, and mechanical precision becomes increasingly difficult to achieve.
The OT028 was designed to address those demands with a precision-machined waveguide structure that supports repeatable performance across the band, along with a compact footprint suited for integration into space-constrained assemblies. The result is a component built for users who need dependable polarization control without compromising size, stability, or overall system efficiency.
A measured data package for the OT028 includes performance plots across the full operating band, giving engineers a clearer view of how the device performs in real operating conditions.
