Dual circularly polarized broadband CPW-fed square slot antenna with two L-shape strips

Author

Jiaran Qi ; Chongzhi Han ; Shu Lin ; Jinghui Qiu

Author_Institution

Dept. of Microwave Eng., Harbin Inst. of Technol., Harbin, China

fYear

2014

fDate

6-11 July 2014

Firstpage

1722

Lastpage

1723

Abstract

In this paper, a novel broadband square slot antenna was promoted, which can realize dual circular polarization by embedding in the square slot two nearly mirror-symmetric L-shape strips. Also, we add a reflector on the backside of the antenna in order to reflect electromagnetic waves to achieve high gain. Moreover, stubs are supplemented to the L-shape strip to broaden the axial ratio (AR) bandwidth. The optimized coplanar waveguide (CPW) structure improves impedance bandwidth of the antenna, ranging from 2.0 GHz to 2.2 GHz. The dimension of the proposed antenna is 62.8×72.8mm².

Keywords

antenna feeds; coplanar waveguides; electromagnetic wave polarisation; electromagnetic waves; reflector antennas; slot antennas; waveguide antennas; (CPW) structure; axial ratio bandwidth; coplanar waveguide; dual circular polarization; dual circularly polarized broadband CPW-fed square slot antenna; electromagnetic waves; frequency 2 GHz to 2.2 GHz; impedance bandwidth; mirror-symmetric L-shape strips; reflector; Antenna measurements; Bandwidth; Broadband antennas; Broadband communication; Electromagnetic scattering; Slot antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE

Conference_Location

Memphis, TN

ISSN

1522-3965

Print_ISBN

978-1-4799-3538-3

Type

conf

DOI

10.1109/APS.2014.6905187

Filename

6905187