Study of broadband CP patch antenna with its ground plane having an elevated portion

Yu Bo Tzeng, Che Wei Su, Ching Her Lee

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

8 Citations (Scopus)


A novel broadband circularly polarized patch antenna is presented. The antenna has a thick air-layer substrate; however, it can be easily excited by using a short probe pin. CP operation is obtained by selecting an optimal size of the truncated corners, and good impedance matching over a wide bandwidth is achieved by using a ground plane with an elevated portion. For a prototype built for WLAN operation in the 2.4 GHz band (2.4-2.484 GHz), the obtained CP bandwidth (3-dB axial ratio) reaches about 3.9%-7.5% and the measured antenna gain is about 9.3-7.4 dBic across the CP bandwidth for the air-layer substrate thickness varying from 8 mm to 14 mm. Details of the antenna design and experimental results are presented.

Original languageEnglish
Title of host publicationAPMC 2005
Subtitle of host publicationAsia-Pacific Microwave Conference Proceedings 2005
Publication statusPublished - 2005 Dec 1
EventAPMC 2005: Asia-Pacific Microwave Conference 2005 - Suzhou, China
Duration: 2005 Dec 42005 Dec 7

Publication series

NameAsia-Pacific Microwave Conference Proceedings, APMC


OtherAPMC 2005: Asia-Pacific Microwave Conference 2005

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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