Design of balanced wideband filtering circularly polarized antenna using quasi-self-complementary structure

Pei Shan Ho, Ching Her Lee, Dau Ming Wu, Hsun Hsiang Chen, Chung I.G. Hsu

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

1 Citation (Scopus)

Abstract

In this paper, a balanced wideband filtering circularly polarized (CP) antenna designed using rectangular quasi-self-complementary structure is proposed. The antenna is fed by a differential microstrip line, and consists of a strip-loaded rectangular slot radiator and its complementary slot-loaded patch counterpart. The fields radiated by the two complementary parts of the antenna are expected to be orthogonal if properly excited. To achieve a CP radiation pattern, a 90° delay line section is embedded in one of the two feedlines to provide 90° phase difference between signals fed to the two antenna input ports. In addition, to suppress the wideband common-mode signals, two half-wavelength microstrip line sections that share part of their structures are connected between the two feedlines for producing two transmission zeros in the DM passband under CM operation. For the designed balanced wideband filtering CP antenna, measurement shows that the Sdd 11≤ -10 dB DM operating band covers a frequency range of 3.16-4.63 GHz. Very good CM suppression was observed with the measured CM reflection coefficient greater than -1 dB over most of the DM passband. The simulated 3-dB axial ratio band is 3.04-5.09 GHz.

Original languageEnglish
Title of host publication2018 IEEE International Symposium on Electromagnetic Compatibility and 2018 IEEE Asia-Pacific Symposium on Electromagnetic Compatibility, EMC/APEMC 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages393-395
Number of pages3
ISBN (Electronic)9781509059973
DOIs
Publication statusPublished - 2018 Jun 22
Event60th IEEE International Symposium on Electromagnetic Compatibility and 9th IEEE Asia-Pacific Symposium on Electromagnetic Compatibility, EMC/APEMC 2018 - Suntec City, Singapore
Duration: 2018 May 142018 May 18

Publication series

Name2018 IEEE International Symposium on Electromagnetic Compatibility and 2018 IEEE Asia-Pacific Symposium on Electromagnetic Compatibility, EMC/APEMC 2018

Other

Other60th IEEE International Symposium on Electromagnetic Compatibility and 9th IEEE Asia-Pacific Symposium on Electromagnetic Compatibility, EMC/APEMC 2018
CountrySingapore
CitySuntec City
Period18-05-1418-05-18

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Electrical and Electronic Engineering
  • Safety, Risk, Reliability and Quality
  • Radiation

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  • Cite this

    Ho, P. S., Lee, C. H., Wu, D. M., Chen, H. H., & Hsu, C. I. G. (2018). Design of balanced wideband filtering circularly polarized antenna using quasi-self-complementary structure. In 2018 IEEE International Symposium on Electromagnetic Compatibility and 2018 IEEE Asia-Pacific Symposium on Electromagnetic Compatibility, EMC/APEMC 2018 (pp. 393-395). (2018 IEEE International Symposium on Electromagnetic Compatibility and 2018 IEEE Asia-Pacific Symposium on Electromagnetic Compatibility, EMC/APEMC 2018). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISEMC.2018.8393806