Title :
Design of an Archimedean spiral antenna
Author :
Wang, Baixiao ; Chen, Aixin
Author_Institution :
Sch. of Electron. & Inf. Eng., BUAA, Beijing
Abstract :
The Archimedean spiral antennas are widely used as a kind of broad-bandwidth antennas. This paper presents an Archimedean spiral antenna and its directivity performance. A metal cavity is used to reflect unwanted power in order to get unidirectional pattern. To overcome the bandwidth limitation of the hollow metal cavity, the cavity with three metal plates are proposed, and the simulation results show that good antenna performance is obtained within a broad bandwidth.
Keywords :
antenna radiation patterns; broadband antennas; directive antennas; microwave antennas; spiral antennas; Archimedean spiral antenna; broad-bandwidth antennas; directivity performance; frequency 2 GHz to 18 GHz; hollow metal cavity; unidirectional radiation pattern; Bandwidth; Design engineering; Directive antennas; Electromagnetic compatibility; Engine cylinders; Frequency; Polarization; Power engineering and energy; Slot antennas; Spirals;
Conference_Titel :
Antennas, Propagation and EM Theory, 2008. ISAPE 2008. 8th International Symposium on
Conference_Location :
Kunming
Print_ISBN :
978-1-4244-2192-3
Electronic_ISBN :
978-1-4244-2193-0
DOI :
10.1109/ISAPE.2008.4735217
