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2010-06-02
Simultaneous Gain and Bandwidths Enhancement of a Single-Feed Circularly Polarized Microstrip Patch Antenna Using a Metamaterial Reflective Surface
By
Progress In Electromagnetics Research B, Vol. 22, 23-37, 2010
Abstract
This paper proposes a metamaterial reflective surface (MRS) as a superstrate for a single-feed circularly polarized microstrip patch antenna (SFCP-MPA). It illustrates a simultaneous enhancement on antenna gain, impedance bandwidth (ZBW) and axial-ratio bandwidth (ARBW) by adding the MRS atop the SFCP-MPA. The MRS can enhance the ZBW and ARBW by 3.5 and 9.9 times, respectively, compared to the circularly polarized patch source. Moreover, the gain of the CP-MPA with the MRS is 7 dB higher than that of the conventional CP-MPA. The small spacing between the MRS and patch source is another merit in the present design, which is as low as λo/16 as it results in a low-profile antenna design that well suits modern wireless communications.
Citation
Sarawuth Chaimool, Kwok L. Chung, and Prayoot Akkaraekthalin, "Simultaneous Gain and Bandwidths Enhancement of a Single-Feed Circularly Polarized Microstrip Patch Antenna Using a Metamaterial Reflective Surface," Progress In Electromagnetics Research B, Vol. 22, 23-37, 2010.
doi:10.2528/PIERB10031901
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