A Compact 28GHz-Band 4x4 Butler Matrix Based Beamforming Antenna module in Broadside Coupled Stripline

Jean Temga, Koki Edamatsu, Mizuki Motoyoshi, Noriharu Suematsu

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

Abstract

A compact and wideband 4x4 BM based four directions beamforming antenna is proposed and designed in 3-layers substrate. A broadside coupled stripline structure is used in the lower layers to design a high performance 3dB/900 coupler as the basic element of the BM. A compact size, wideband and low loss 4x4BM is realized at mmWave frequencies. The upper layer is used to design the antenna array. The simulated return loss at all ports is below-10dB. The simulated four directional beams 12.50, -380, 370, -130 and the second lobe levels -12, -10, -10.5, -12.2dB are respectively achieved when ports 1,2,3, and 4 are excited. The beamforming system exhibits an average gain of 9.6dBi. The measurement of the beamforming antenna module confirms the simulation results.

Original languageEnglish
Title of host publication15th European Conference on Antennas and Propagation, EuCAP 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9788831299022
DOIs
Publication statusPublished - 2021 Mar 22
Event15th European Conference on Antennas and Propagation, EuCAP 2021 - Dusseldorf, Germany
Duration: 2021 Mar 222021 Mar 26

Publication series

Name15th European Conference on Antennas and Propagation, EuCAP 2021

Conference

Conference15th European Conference on Antennas and Propagation, EuCAP 2021
Country/TerritoryGermany
CityDusseldorf
Period21/3/2221/3/26

Keywords

  • 5G mm Wave
  • Beamforming antenna
  • Broadside Coupled Stripline
  • Probe fed patch antenna

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Signal Processing
  • Instrumentation

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