A Compact Phase Shifter in Groove Gap Waveguide for Millimeter-wave Applications

A compact low loss waveguide phase shifter design based on gap waveguide technology is presented in this work. In the proposed structure, no extra length is introduced to the waveguide section which restrains the phase shifter compactness and makes it possible to develop equal length waveguide diffe...

Full description

Saved in:
Bibliographic Details
Published inIET Conference Proceedings
Main Authors Razavi, SA, Zaman, AU
Format Conference Proceeding
LanguageEnglish
Published Stevenage The Institution of Engineering & Technology 09.04.2018
Subjects
Beamforming
Frequency ranges
Grooves
Impedance matching
Insertion loss
Millimeter waves
Phase shifters
Waveguides
Online AccessGet full text

Cover

More Information
Summary:A compact low loss waveguide phase shifter design based on gap waveguide technology is presented in this work. In the proposed structure, no extra length is introduced to the waveguide section which restrains the phase shifter compactness and makes it possible to develop equal length waveguide differential phase shifters which are so applicable in realizing compact beamforming networks. From fabrication point of view, the proposed structure is very compatible with groove gap waveguide (GGW) technology which makes it a low loss and efficient solution for phase shifting at millimeter wave frequencies. A sample 90° equal length differential phase shifter based on the proposed idea is designed and simulated for 60GHz band. Results show proper impedance matching and low insertion loss (less than 0.3dB) as well as providing 90 ± 5° phase shift over the frequency range of 58 - 62.4 GHz.
ISBN:1785618164
9781785618161
DOI:10.1049/cp.2018.0571