A low-loss Ka-band waveguide to substrate integrated waveguide transition based on ridged stepped-impedance transformer

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Abstract

A low-loss Ka-band transition from waveguide to substrate integrated waveguide (SIW) is presented based on ridge waveguide stepped-impedance transformer. This novel transition can operate across a full Ka-band (26.5 to 40 GHz) with an insertion loss lower than 0.59 dB and return loss over 14.2 dB. Furthermore, compared to existing transitions the introduction of ridges reduces the metal usage, resulting in weight reduction and offering an encouraging application for weight-sensitive satellite communications (SatComs).
Original languageEnglish
Pages (from-to)662-664
Number of pages3
JournalElectronics Letters
Volume57
Issue number17
Early online date26 May 2021
DOIs
Publication statusPublished - 10 Aug 2021

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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