Title :
Enhancing AR bandwidth of circularly polarization microstrip antenna
Author :
Chang, DauChyrh ; Lien, Huar-Cheng
Author_Institution :
Dept. of Electr. Eng., Da Yeh Univ., Taiwan
Abstract :
In general, a microstrip antenna has a narrow 3-dB AR bandwidth. Techniques for achieving wideband impedance and 3-dB AR bandwidth characteristics in the practical design of circular polarization (CP) antennas are important. This paper describes a method to enhance the AR bandwidth of a CP microstrip single-feed ring antenna (SFRA). The experimental results verify that the antenna has an impedance bandwidth of 34% and a 3-dB AR bandwidth of more than 33%.
Keywords :
UHF antennas; antenna feeds; broadband antennas; electromagnetic wave polarisation; microstrip antennas; 1.8 to 2.5 GHz; AR bandwidth; SFRA; circularly polarization microstrip antenna; microstrip single-feed ring antenna; wideband impedance bandwidth; Antenna feeds; Bandwidth; Broadband antennas; Circuits; Conductors; Electromagnetic wave polarization; Frequency; Impedance; Microstrip antennas; Permittivity;
Conference_Titel :
Antenna Technology: Small Antennas and Novel Metamaterials, 2005. IWAT 2005. IEEE International Workshop on
Print_ISBN :
0-7803-8842-9
DOI :
10.1109/IWAT.2005.1461068
