Title :
Miniaturized conical spiral antenna with tapered resistive roading and corrugated arms
Author :
Youn, Hyoung-sun ; Celik, Nuri ; Iskander, Magdy ; Baker, James ; Graham, James ; Murphy, Seibert
Author_Institution :
Hawaii Center for Adv. Commuincation, Univ. of Hawaii at Manoa, Honolulu, HI, USA
Abstract :
In this paper, we proposed a new broadband conical spiral antenna. This antenna adopted corrugated arms in the outer turns to improve low frequency operation. Tapered resistive loading along an exponential profile was also applied to suppress the reflected backward traveling wave which causes undesirable radiation characteristics in low frequency band. Characteristics of antenna components and parameters are provided along with guidelines and recommendations for miniaturization. The proposed antenna aimed to operate from 300 MHz to 1.2 GHz using 7 inch aperture and 6 inch height. Antenna characteristics were analyzed by FEKO simulations and simulation results will be presented.
Keywords :
UHF antennas; antenna feeds; broadband antennas; conical antennas; electromagnetic wave reflection; spiral antennas; FEKO simulation; antenna component; antenna parameters; broadband conical spiral antenna; corrugated arms; frequency 300 MHz to 1.2 GHz; miniaturized conical spiral antenna; reflected backward traveling wave suppression; tapered resistive roading; Broadband antennas; Gain; Loaded antennas; Loading; Resistors; Spirals; circular polarization; conical spiral; miniaturization; resistive loading; unidirectional beam;
Conference_Titel :
Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on
Conference_Location :
Spokane, WA
Print_ISBN :
978-1-4244-9562-7
DOI :
10.1109/APS.2011.5996496
