Single Feed Dual Beam Antenna using Metamaterial Surfaces for Near-Field Phase Manipulation

Aditya M Dave, Rhonda Franklin

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

Abstract

Dual beam antennas with similar gain and beam-width require multiple antennas fed separately with controlled input phase shifts or a single antenna with a complicated feeding mechanism. To reduce this design complexity, this paper presents an approach that uses one antenna, a simple feeding network and a pair of simple metamaterial-based frequency selective surfaces with uniform rectangular unit cells. Four different surfaces are studied for a 13.6 GHz scalable design fed by one planar source antenna at a time. Results show that different combinations vary the near field phase, which affects beam orientation and gain, and that a single far field beam can be transformed into a dual beam with a split up to 34°. The best design has simulated and measured gain of 14.5 dB for the boresight beam and 11 dB for each of the dual beam.

Original languageEnglish (US)
Title of host publication2021 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, APS/URSI 2021 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages621-622
Number of pages2
ISBN (Electronic)9781728146706
DOIs
StatePublished - 2021
Event2021 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, APS/URSI 2021 - Singapore, Singapore
Duration: Dec 4 2021Dec 10 2021

Publication series

Name2021 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, APS/URSI 2021 - Proceedings

Conference

Conference2021 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, APS/URSI 2021
Country/TerritorySingapore
CitySingapore
Period12/4/2112/10/21

Bibliographical note

Funding Information:
The work is partially supported by IEEE Microwave Theory and Techniques Society MTT-SAT student grant program

Publisher Copyright:
© 2021 IEEE.

Keywords

  • array
  • gain
  • metamaterials
  • near-field
  • phase

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