A metal 3D-printed T-junction OMT with an offset stepped post

Hidenori Yukawa, Yu Ushijima, Motomi Abe, Naofumi Yoneda, Moriyasu Miyazaki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

We propose a T-junction OMT consists of an offset stepped post. The offset stepped post contributes to the matching of two rectangular ports at the short circuit situated at opposed side walls. The structure without conventional ridges is simple and makes it possible to achieve robust performances. We fabricated a proposed T-junction OMT in a single piece of an aluminum alloy, using a commercial metal 3D-printer. The proposed simple and compact structure with robust performances is considered to overcome disadvantage of 3D-printer, such as fabrication tolerance and surface roughness. The measured results demonstrated a return loss of 22dB and a loss of 0.3dB with a bandwidth of 8% in the K-band.

Original languageEnglish
Title of host publicationEuropean Microwave Week 2017
Subtitle of host publication"A Prime Year for a Prime Event", EuMW 2017 - Conference Proceedings; 47th European Microwave Conference, EuMC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages444-447
Number of pages4
ISBN (Electronic)9782874870477
DOIs
Publication statusPublished - 2017 Dec 19
Externally publishedYes
Event47th European Microwave Conference, EuMC 2017 - Nuremburg, Germany
Duration: 2017 Oct 102017 Oct 12

Publication series

NameEuropean Microwave Week 2017: "A Prime Year for a Prime Event", EuMW 2017 - Conference Proceedings; 47th European Microwave Conference, EuMC 2017
Volume2017-January

Other

Other47th European Microwave Conference, EuMC 2017
Country/TerritoryGermany
CityNuremburg
Period17/10/1017/10/12

Keywords

  • 3D-printer
  • antenna feed
  • orthomode transducer
  • waveguide

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Instrumentation

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