Title :
A compact circularly polarized cavity-backed antenna with I-type crossed slots
Author :
Ye, Xihong ; He, Mang
Author_Institution :
Beijing Inst. of Technol., Beijing, China
Abstract :
A design of the compact cavity-backed antenna with I-type crossed-slot for circular polarization is presented. Parametric study is carried out to numerically investigate the effects of various dimensions of the antenna, including the length and width of the main arm of the crossed-slot, the size of the folded part at the end of the slot, and the finite ground plane, on the performance of the antenna. Numerical results show that good circular polarization can be achieved within the 4.8% impedance bandwidth as the size of the cavity is only 42mm (0.31λ0 at the central frequency).
Keywords :
UHF antennas; electromagnetic wave polarisation; slot antennas; I-type crossed slots; antenna dimensions; circular polarization; compact circularly polarized cavity backed antenna; finite ground plane; folded part; frequency 2.22 GHz; size 42 mm; Antenna radiation patterns; Cavity resonators; Dielectric losses; Resonant frequency; Slot antennas; Substrates; cavity-backed slot antenna; circular polarization; compact design;
Conference_Titel :
Microwave Technology & Computational Electromagnetics (ICMTCE), 2011 IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-8556-7
DOI :
10.1109/ICMTCE.2011.5915158
