Bandwidth enhancement of the cavity resonance antenna (CRA) using multiple dielectric superstrate layers

Muhannad A. Al-Tarifi, Dimitris E. Anagnostou, Anthony K. Amert, Keith W. Whites

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

12 Citations (Scopus)

Abstract

The ray-tracing method is applied to study the radiation of a cavity resonance antenna (CRA) with both single and multiple dielectric superstrate layers. The behavior of the broadside directivity is investigated by analyzing the reflection phase of the antenna superstrates. To enhance the bandwidth of the CRA and maintain its large broadside directivity, a multilayered superstrate of an increasing reflection phase with frequency is presented. When compared to the single-layered CRA, a bandwidth enhancement of more than 100% is attained using a multilayered CRA of three superstrate slabs. Theoretical results are validated by simulations using commercial numerical electromagnetics software.

Original languageEnglish
Title of host publication2011 IEEE MTT-S International Microwave Symposium (IMS)
PublisherIEEE
ISBN (Electronic)9781612847573
ISBN (Print)9781612847542
DOIs
Publication statusPublished - 4 Aug 2011
Event2011 IEEE MTT-S International Microwave Symposium - Baltimore, MD, United States
Duration: 5 Jun 201110 Jun 2011

Conference

Conference2011 IEEE MTT-S International Microwave Symposium
Abbreviated title IMS 2011
CountryUnited States
CityBaltimore, MD
Period5/06/1110/06/11

Keywords

  • Broadband antennas
  • cavity resonators
  • directive antennas
  • electromagnetic propagation
  • electromagnetic reflection
  • leaky wave antennas

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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