Title :
Novel wide-slot antenna fed by equiangular spiral for ultra-wideband communications
Author :
Huang, J.-X. ; Zhang, Q. ; Zhang, Qi ; Xu, Y.-F. ; Yang, Y.-B. ; Jiao, Y.-C.
Author_Institution :
Nat. Key Lab. of Antennas & Microwave Technol., Xidian Univ., Xi´´an, China
Abstract :
In this paper, a novel UWB (Ultra-wide Band) antenna is proposed. This design mainly consists of a wide slot square ground plane and a frequency independent feed line-a 0.5 turn equiangular spiral, which are etched on each side of a substrate separately. Additionally, a circular patch connected with the slotted ground is introduced to tune the working bandwidth of this antenna. Prototypes are instructed and tested to know the performance of the proposal. From the results, it can be seen that the proposed antenna has enough impedance bandwidth for UWB applications with VSWR (Voltage Standing Wave Ratio) less than 2, acceptable radiation patterns, as well as relatively high gains.
Keywords :
antenna feeds; slot antennas; spiral antennas; ultra wideband antennas; equiangular spiral; feed line; ultrawide band antenna; ultrawideband communications; wide slot antenna fed;
Conference_Titel :
Ultra-Wideband (ICUWB), 2010 IEEE International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-5305-4
Electronic_ISBN :
978-1-4244-5306-1
DOI :
10.1109/ICUWB.2010.5616020
