Title :
Microstrip-line-fed circularly-polarized circular slot antenna with a spur slot
Author :
Jan, Jen-Yea ; Chiu, Kuo-Yung ; Pan, Chien-Yuan ; Chen, Hua-Ming ; Chen, Chien-Hung
Author_Institution :
Dept. of Electron. Eng., Nat. Kaohsiung Univ. of Appl. Sci., Kaohsiung, Taiwan
Abstract :
A new Microstrip-line-fed circularly-polarized circular slot antenna with a spur slot is presented. The proposed circularly-polarized (CP) operation can be achieved simply by embedding the spur slot along the circumference of circular slot. From the experimental results, the 3-dB axial-ratio bandwidth can reach as large as 105 MHz (4.3% relative to the centre frequency of 2447.5 MHz) for the application as a 2.45-GHz RFID reader.
Keywords :
UHF antennas; antenna feeds; microstrip antennas; microstrip lines; radiofrequency identification; slot antennas; RFID reader; circular slot; frequency 2.45 GHz; frequency 2447.5 MHz; microstrip-line-fed circularly-polarized circular slot antenna; spur slot; Antenna measurements; Bandwidth; Broadband antennas; Microstrip; Microstrip antennas; Slot antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6349343
