Abstract
This letter presents a novel waveguide orthomode transducer (OMT) with integrated filters. Resonator-based bandpass filters are used for the two channels forming a duplexing OMT. As an example, a two-channel duplexing OMT is designed with channels at 9.9-10.1 GHz and 10.9-11.1 GHz. A good filter response with 20 dB return loss is achieved for both the channels. The upper and lower bands are isolated to −80 dB due to the filtering elements and a transmission zero. This new multifunction compact filter-OMT design leads to the size reduction and improved inter-band isolation. A CNC machined waveguide OMT is demonstrated and its performance is verified with excellent agreement between the electromagnetic wave (EM) simulation and measured results.
Original language | English |
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Pages (from-to) | 78-81 |
Number of pages | 4 |
Journal | Microwave and Optical Technology Letters |
Volume | 62 |
Issue number | 1 |
Early online date | 16 Aug 2019 |
DOIs | |
Publication status | Published - Jan 2020 |
Keywords
- duplexing OMT
- filtering OMT
- waveguide
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering