Title :
Size reduction and bandwidth enhancement of shorted annular ring (SAR) antenna
Author :
Dorsey, W. Mark ; Zaghloul, Amir I.
Author_Institution :
US Naval Res. Lab., Washington
Abstract :
Size reduction of the antennas in personal wireless communications has become an important task for the antenna engineer due to the increasing popularity of compact handsets. In this paper, a new technique to reduce the size of a shorted annular ring (SAR) antenna is presented. This technique uses a capacitive loading structure that is analogous to a parallel plate capacitor. Increasing the antenna bandwidth and producing circular polarization are also presented.
Keywords :
antennas; personal communication networks; radiocommunication; antenna engineer; capacitive loading; circular polarization; parallel plate capacitor; personal wireless communications; shorted annular ring antenna; Bandwidth; Capacitance; Dielectric constant; Dielectric substrates; Equations; Laboratories; Loaded antennas; Resonant frequency; Telephone sets; Wireless communication;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2007 IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-0877-1
Electronic_ISBN :
978-1-4244-0878-8
DOI :
10.1109/APS.2007.4395639
