Ku/Ka-band compact orthomode junction with low pass filters for high power applications

Hidenori Yukawa, Koji Yoshida, Tomohiro Mizuno, Tetsu Owada, Moriyasu Miyazaki

Research output: Contribution to journalArticlepeer-review

Abstract

This paper presents a compact orthomode junction with low pass filters for high power applications. It consists of a circular waveguide step, a matching element for a high frequency band, and coupling sections straddle the circular waveguide step. These dimensions were optimized to achieve wideband performances and to support a high power rating. The structure without rectangular to circular transition is simple and comprised of two milled layers to divide E-plane of corrugated low pass filters. It can be easily manufactured and has low losses. The fabricated Ku/Ka-band orthomode junction was measured including power handling test of 2kW at Ku-band. The measurement results demonstrated return loss of 21 dB and loss of 0.2 dB in the Ku- and Ka- band.

Original languageEnglish
Pages (from-to)156-161
Number of pages6
JournalIEICE Transactions on Electronics
VolumeE98C
Issue number2
DOIs
Publication statusPublished - 2015 Feb 1
Externally publishedYes

Keywords

  • Antenna feed
  • Orthomode junction
  • Polarization
  • Waveguide
  • Wideband

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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