Compact circularly-polarized antenna with spiral slots for CNSS dual-band applications

Ze Kun Pan, Qing Xin Chu, Wei Lin

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

4 Citations (Scopus)


A novel compact single-feed circularly-polarized (CP) antenna is proposed for CNSS dual-band applications. The antenna comprises a small circular patch with embedded four spiral square slots around the boundary and a narrow slot in the center. It is observed that the lower (1615MHz) and upper (2498MHz) resonance frequencies are controlled by the circular patch and the spiral slots. The CP operation is mainly achieved by the narrow slot. The antenna has a low profile and a small size with a radius of 19.7mm. Experimental and measured results show that the proposed antenna has good circular polarization characteristics.

Original languageEnglish
Title of host publicationAsia-Pacific Microwave Conference Proceedings, APMC 2011
Number of pages4
Publication statusPublished - Dec 2011
Externally publishedYes
EventAsia-Pacific Microwave Conference, APMC 2011 - Melbourne, VIC, Australia
Duration: 5 Dec 20118 Dec 2011

Publication series

NameAsia-Pacific Microwave Conference Proceedings, APMC


ConferenceAsia-Pacific Microwave Conference, APMC 2011
CityMelbourne, VIC


  • circularly-polarization
  • CNSS
  • Dual-band
  • microstrip antenna
  • spiral slot

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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