Title :
A broadband eccentric annular slot antenna
Author :
Young Hoon Suh ; Ikmo Park
Author_Institution :
Dept. of Electr. Eng., Ajou Univ., Suwon, South Korea
Abstract :
We have proposed and investigated broadband eccentric annular slot antennas as an effective way to achieve a wider bandwidth in annular slot antennas. The eccentric antenna was analyzed using the FDTD method, and the computed results of return loss were in good agreement with the measured results. The maximum impedance bandwidth of the antenna with the slot radius of 15 mm was 1.27 octave for VSWR<2 at the center frequency of 5.225 GHz. These results show that by using an eccentric slot antenna, we were able to achieve a significantly wider impedance bandwidth than those in a conventional annular slot antenna of equivalent size.
Keywords :
antenna radiation patterns; finite difference time-domain analysis; loop antennas; slot antennas; 15 mm; 5.225 GHz; FDTD method; broadband slot antenna; eccentric annular slot antenna; Bandwidth; Broadband antennas; Dielectric loss measurement; Finite difference methods; Frequency; Geometry; Impedance; Microstrip antennas; Slot antennas; Time domain analysis;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2001. IEEE
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-7070-8
DOI :
10.1109/APS.2001.958801
