Wideband isolation enhancement of dual-antenna array using hybrid decoupling structures

Shasha Deng, Yangyang Wang, Jun Ding, Weidong Chen, Chang Chen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

A wideband hybrid decoupling structure for MIMO antennas is presented in this paper. The decoupling structure is composed of a suspended array-antenna decoupling surface, which consists of several reflectors and a defected ground structure with two rectangular slots to reduce the mutual coupling. When utilizing the proposed design in the two extremely-closed patch antennas with an edge-to-edge distance of only 1 mm (0.019 λ0 at 5.65 GHz), the simulated results demonstrate that the isolation better than 20 dB can be achieved over the frequency range of 5.13-6.27 GHz (20%). Besides, the isolation level reaches more than 30 dB over 5.41-6.25 GHz (14.4%). Meanwhile, the efficiency and gain of the antenna are also improved by considerable amounts.

Original languageEnglish
Title of host publication2020 International Symposium on Antennas and Propagation, ISAP 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages185-186
Number of pages2
ISBN (Electronic)9784885523267
DOIs
StatePublished - 25 Jan 2021
Event2020 International Symposium on Antennas and Propagation, ISAP 2020 - Virtual, Osaka, Japan
Duration: 25 Jan 202128 Jan 2021

Publication series

Name2020 International Symposium on Antennas and Propagation, ISAP 2020

Conference

Conference2020 International Symposium on Antennas and Propagation, ISAP 2020
Country/TerritoryJapan
CityVirtual, Osaka
Period25/01/2128/01/21

Keywords

  • Array-antenna decoupling surface
  • Defected ground structure
  • Isolation
  • Mutual coupling
  • Wideband

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