A novel low-profile wideband reconfigurable CP antenna array

Shu Lin Chen, Wei Lin, Pei Yuan Qin, Y. Jay Guo, Richard W. Ziolkowski

Research output: Contribution to conferencePaperpeer-review


For future wireless communications, cost-effective, low-profile circular polarization (CP) antennas with wide bandwidth and high directivity are highly desirable to increase system capacity and suppress polarization mismatch. In this paper, a wideband circular polarization antenna array integrated with a polarization-independent artificial magnetic conductor (AMC) is reported that meets the demands. First, a wideband CP reconfigurable antenna with a pair of cross-bowtie radiators and a metal ground is presented to achieve a fractional bandwidth of 35.9%. By replacing the metal ground with a polarization-independent AMC ground, the antenna profile is reduced from 0.25λ0 to 0.05λ0 with only a slight bandwidth decrease. A wideband CP reconfigurable 4-element linear array is achieved using four of those elements. It is low profile (0.05 λ0), and has a wide operating bandwidth (21.7%), and a high realized gain (13 dBic).

Original languageEnglish (US)
StatePublished - 2018
Event12th European Conference on Antennas and Propagation, EuCAP 2018 - London, United Kingdom
Duration: Apr 9 2018Apr 13 2018


Other12th European Conference on Antennas and Propagation, EuCAP 2018
Country/TerritoryUnited Kingdom


  • Antenna array
  • Artificial magnetic conductor (AMC)
  • Circular polarization
  • Polarization reconfigurable antenna

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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