A Broadband Circularly Polarized Microstrip Patch Antenna Using Circular Artificial Ground Structure

Khanet POOKKAPUND; Arnon SAKONKANAPONG; Takeshi FUKUSAKO; Chuwong PHONGCHAROENPANICH

doi:10.11485/itetr.42.01.0_69

Broadcasting and Communication Technologies(BCT)

Session ID : BCT2018-18

DOI https://doi.org/10.11485/itetr.42.01.0_69

Conference information

Host: Broadcasting and Communication Technologies(BCT)

Name : Broadcasting and Communication Technologies(BCT)

Date : January 18, 2018 - January 19, 2018

A Broadband Circularly Polarized Microstrip Patch Antenna Using Circular Artificial Ground Structure

*Khanet POOKKAPUND, Arnon SAKONKANAPONG, Takeshi FUKUSAKO, Chuwong PHONGCHAROENPANICH

Author information

Keywords: artificial magnetic conductor, artificial ground structure, broadband antenna, circular polarization, microstrip patch antenna

CONFERENCE PROCEEDINGS FREE ACCESS

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Abstract

This paper presents a broadband circularly polarized microstrip patch antenna using a circular artificial ground structure (AGS). This antenna consists of a radiating square patch with truncated corners, a modified circular AGS including non-uniform unit cells along the circumference of a circle and a circular ground plane. The proposed antenna radiates right-handed circular polarization (RHCP) with broadband CP characteristics achieved by reflected wave from AGS and radiated wave from the patch. The obtained -10-dB |S11| and 3-dB axial ratio bandwidths are 65% and 37%, respectively.

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