A polarization reconfigurable microstrip patch antenna using PIN diodes

Author

Taeho Song ; Youngki Lee ; Deukhyeon Ga ; Jaehoon Choi

Author_Institution

Dept. of Electron. & Comput. Eng., Hanyang Univ., Seoul, South Korea

fYear

2012

fDate

4-7 Dec. 2012

Firstpage

616

Lastpage

618

Abstract

A microstrip patch antenna with reconfigurable polarization states among right-hand circular polarization (RHCP), left-hand circular polarization (LHCP) and two linear polarizations (LP) is proposed. The proposed antenna has stacked structure consists of a radiator with a ring-slot and a cross slot, four PIN diodes and a single feed line. The polarization state can be determined by switching the PIN diodes ON and OFF. To improve the impedance matching characteristic, the cross slot is used. The proposed antenna has 40 MHz 10 dB return loss bandwidth and more than 8 MHz 3 dB axial ratio bandwidth in the circularly polarized state.

Keywords

antenna feeds; antenna radiation patterns; electromagnetic wave polarisation; impedance matching; microstrip antennas; p-i-n diodes; slot antennas; LHCP; LP; PIN diode; RHCP; axial ratio bandwidth; cross slot radiator; frequency 40 MHz; impedance matching characteristics; left-hand circular polarization; linear polarization; loss 10 dB; polarization reconfigurable microstrip patch antenna; return loss bandwidth; right-hand circular polarization; ring-slot radiator; single feed line; stacked structure antenna; Feeds; Microstrip; Microstrip antennas; PIN photodiodes; Patch antennas; Polarization; PIN diodes; circular polarization; linear polarization; patch antenna; reconfigurable polarization;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference Proceedings (APMC), 2012 Asia-Pacific

Conference_Location

Kaohsiung

Print_ISBN

978-1-4577-1330-9

Electronic_ISBN

978-1-4577-1331-6

Type

conf

DOI

10.1109/APMC.2012.6421682

Filename

6421682