Design of an Electromechanically Tunable CPW Phase Shifter

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

Authors

Colleges, School and Institutes

External organisations

  • Department of Electronic Electrical and Systems Engineering

Abstract

This study presents the design and loss assessment of a tunable, phase shifting coplanar waveguide (CPW) line. The phase shifter consists of a CPW transmission line with a metallic loading strip suspended on top. The gap between them can be precisely altered with the use of piezoelectric actuators. By decreasing the CPW line width, the S21 losses decrease by almost 1 dB, and S11 stay well below -10 dB in all designs. The structures have been simulated with CST Microwave Studio, and the simulated results demonstrate a total phase shift of more than 180 degrees in all designs with good loss performance.

Details

Original languageEnglish
Title of host publication13th European Conference on Antennas and Propagation, EuCAP 2019
Publication statusPublished - Mar 2019
Event13th European Conference on Antennas and Propagation, EuCAP 2019 - Krakow, Poland
Duration: 31 Mar 20195 Apr 2019

Publication series

Name13th European Conference on Antennas and Propagation, EuCAP 2019

Conference

Conference13th European Conference on Antennas and Propagation, EuCAP 2019
CountryPoland
CityKrakow
Period31/03/195/04/19

Keywords

  • CPW, mm-wave, Phase shifter, piezoelectric actuators