Title :
Compact circularly-polarised microstrip antenna with symmetric-slit
Author :
Liu, Cong ; Xiao, Shiwu ; Guo, Yong Xin ; Bai, Y.-Y. ; Tang, Ming-Chun ; Wang, Bing-Zhong
Author_Institution :
Inst. of Appl. Phys., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
A single-fed compact circularly-polarised (CP) microstrip antenna is designed and experimentally demonstrated. By embedding the symmetric-slit in the radiation patch and protruding a pair of perturbation elements at the boundary of the centre square slot, the proposed antenna can obtain good CP performance with effective size reduction at a fixed frequency operation. Meanwhile, an impedance transformer is utilised for impedance matching.
Keywords :
antenna feeds; antenna radiation patterns; impedance matching; microstrip antennas; centre square slot; impedance matching; impedance transformer; perturbation element; radiation patch; single-fed compact circularly-polarised microstrip antenna; symmetric-slit;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2011.3489
