A Compact Millimeter Wave Polarization Reconfigurable Double Patch Antenna

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

4 Scopus citations

Abstract

A polarization-reconfigurable single-fed patch antenna loaded with a smaller parasitic stacked bandwidth-enhancing patch are reported in this letter. The antenna system is optimized to operate at 29 GHz with three polarization modes that can be reconfigured electronically. The structure consists of two Rogers 3003 substrates of thicknesses of 0.25 and 0.50 mm for the driven antenna and the parasitic one, respectively. The main antenna's ground layer has four square loops etched out to excite the current paths on the driven patch needed for circular polarizations. These four slot loops are placed in the driven patch's four corners and are controlled with four P-I-N didoes. By shorting two diagonally placed slot loops, a circular polarization (CP) mode is created while shorting all of them will result in linearly polarized (LP) radiation. The measured gain and relative impedance bandwidth (BW) of the left-hand circular polarization (LHCP) are 3.1 dB and 5.4%, respectively. Similar results are obtained for the RHCP due to symmetry in structure and biasing conditions. The LP case reached a gain of 4.0 dB and a relative impedance BW of 5.45%. The overall size of the antenna system is 10.2×14.1×0.784 mm3 with a radiation efficiency above 90%. Measurement results are compared and validated with simulations.

Original languageEnglish
Title of host publication2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2023 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1865-1866
Number of pages2
ISBN (Electronic)9781665442282
DOIs
StatePublished - 2023
Event2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2023 - Portland, United States
Duration: 23 Jul 202328 Jul 2023

Publication series

NameIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
Volume2023-July
ISSN (Print)1522-3965

Conference

Conference2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2023
Country/TerritoryUnited States
CityPortland
Period23/07/2328/07/23

Bibliographical note

Publisher Copyright:
© 2023 IEEE.

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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