Title :
Miniaturized I-shaped slot circularly polarized RFID antenna
Author :
Wenbin Zeng ; Guo Liu ; Ming Li ; Liang Xu
Author_Institution :
Inst. of Radio Wave Propagation, Xidian Univ., Xi´an, China
Abstract :
In this paper, we proposed a novel single feed circularly polarized (CP) microstrip antenna with a I-shaped slot. By means of I-shaped slot technique, good axial ratio is obtained. In addition, to reduce the antenna size, four slits were cut on the patch. The optimal parameters of proposed antenna in this paper are achieved through HFSS software simulation. The results of simulation show that the proposed miniaturized CP antenna has an impedance bandwidth (return loss ≤10dB) get to 100 MHz (2.4-2.5 GHz), the 3dB axial ratio bandwidth get to 20 MHz (2.44-2.46 GHz), and the axial gain level get to 6.43 dBi.
Keywords :
antenna feeds; electromagnetic wave polarisation; microstrip antennas; radiofrequency identification; slot antennas; HFSS software simulation; I-shaped slot RFID antenna; I-shaped slot technique; antenna size; bandwidth 100 MHz; bandwidth 20 MHz; circularly polarized RFID antenna; frequency 2.4 GHz to 2.5 GHz; radiofrequency identification; single feed circularly polarize microstrip antenna; Antenna radiation patterns; Bandwidth; Microstrip; Microstrip antennas; Radiofrequency identification; Slot antennas; CP; I-shaped slot; Patch antenna; radio frequency identification (RFID);
Conference_Titel :
Antennas and Propagation (APCAP), 2014 3rd Asia-Pacific Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4799-4355-5
DOI :
10.1109/APCAP.2014.6992495
