An X-band reflectarray with novel elements and enhanced bandwidth

Qing Yong Chen, Shi Wei Qu, Jian Feng Li, Qiang Chen, Ming Yao Xia

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

A novel single-layer reflectarray element with an I-shaped dipole encompassed by a circular ring, showing smooth phase-frequency response, is proposed in this letter. Based on this element, an optimization method is adopted to match the desired phase delays at two edge frequencies so as to get fixed phase difference between two adjacent elements in the optimized band. A low-profile X-band 6× 10-element reflectarray with a scattering angle of 30° for normal incidence of plane waves is designed and fabricated. Simulations and measurements show that a bandwidth of 22.3% for 3 dB directivity dropping and 15.2% for-10 dB sidelobe level (SLL) can be achieved.

Original languageEnglish
Article number6471735
Pages (from-to)317-320
Number of pages4
JournalIEEE Antennas and Wireless Propagation Letters
Volume12
DOIs
Publication statusPublished - 2013 Apr 4

Keywords

  • Bandwidth enhancement
  • optimization methods
  • reflectarrays

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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