Title :
Compact circularly polarized hollow dielectric resonator antenna with embedded vertical feed network
Author :
Wei Wei Li ; Kwok Wa Leung
Author_Institution :
State Key Lab. of Millimeter Waves & Dept. of Electron. Eng., City Univ. of Hong Kong, Kowloon, China
Abstract :
The compact wideband circularly polarized (CP) hollow dielectric resonator antenna (DRA) with an embedded vertical feed network is investigated. A printed quadrature hybrid coupler is used as the feed network. Since the footprint of the feed network is small, the design can be very compact. For demonstration, a hollow cylindrical CP DRA was designed at ~2.4 GHz for WLAN applications. The reflection coefficient, axial ratio, radiation pattern, and antenna gain were simulated using ANSYS HFSS and verified by measurements. Reasonable agreement between the measured and simulated results is observed.
Keywords :
UHF antennas; antenna feeds; antenna radiation patterns; broadband antennas; dielectric resonator antennas; wireless LAN; ANSYS; HFSS; WLAN; antenna gain; axial ratio; embedded vertical feed network; frequency 2.4 GHz; printed quadrature hybrid coupler; radiation pattern; reflection coefficient; wideband circularly polarized hollow dielectric resonator antenna; Antenna measurements; Antenna radiation patterns; Couplers; Dielectric resonator antennas; Dielectrics; Feeds;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4673-5315-1
DOI :
10.1109/APS.2013.6711277
