Title :
Hybrid Equi-angular to Archimedean spiral antenna
Author :
Louertani, Karim ; Chio, Tan-Huat
Author_Institution :
Temasek Labs., Nat. Univ. of Singapore, Singapore, Singapore
Abstract :
In this paper, a hybrid Equi-angular Archimedean spiral antenna is proposed. The geometries of both Equi-angular and Archimedean spiral have been optimized to improve the reflection coefficient and axial ratio bandwidths. This design is etched on a copper disk of 48 mm and exhibits a wide S11 bandwidth (2.08 GHz up to 10 GHz) and AR bandwidth (2.29 GHz up to 10 GHz). Compared to a slot self-complementary spiral with the same diameter, the hybrid antenna extends the bandwidth about 250 MHz. The antenna has been modeled using HFSS EM software.
Keywords :
slot antennas; spiral antennas; AR bandwidth; Archimedean spiral antenna; HFSS EM software; axial ratio bandwidths; bandwidth 2.08 GHz to 10 GHz; copper disk; hybrid equiangular spiral antenna; reflection coefficient; size 48 mm; slot self-complementary spiral antenna; Antennas; Bandwidth; Geometry; Impedance; Spirals;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6348524
