Title :
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
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;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location :
Memphis, TN
Print_ISBN :
978-1-4799-3538-3
DOI :
10.1109/APS.2014.6905187
