Title :
A novel elliptical UWB antenna with dual band-notched characteristics
Author :
Pu, Wan ; Xiao-Miao, Zhang ; Zhen-Lin, Liao
Author_Institution :
Nat. Key Lab. of Antennas & Microwave Technol., Xidian Univ., Xi´´an, China
Abstract :
An elliptical UWB antenna owns two rejected bands is proposed in this paper. Two kinds of slots, a U-shaped slot etched on the background and two L-shaped slots etched on the radiating patch, are introduced. The U-shaped slot produces a notched-band at 3.5GHz, while the L-shaped slots present a notched band at 5.15-5.85GHz. Besides, a double-fed structure and a coupled-line-fed structure is also applied. The double-fed branches balance the currents on the patch, and the two rectangular patches of the coupled-line-fed structure could enhance the VSWR at notched-bands while reduce the VSWR at passed-bands. The structure of the proposed antenna is very novel.
Keywords :
antenna feeds; microstrip antennas; multifrequency antennas; slot antennas; ultra wideband antennas; L-shaped slots; U-shaped slot; coupled-line-fed structure; double-fed structure; dual band-notched characteristics; elliptical UWB antenna; frequency 3.5 GHz; frequency 5.15 GHz to 5.85 GHz; radiating patch; rectangular patches; Antenna measurements; Frequency measurement; Microstrip; Microstrip antennas; Ultra wideband antennas; UWB; band-notched; coupled-line-fed; double-fed;
Conference_Titel :
Radar (Radar), 2011 IEEE CIE International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-8444-7
DOI :
10.1109/CIE-Radar.2011.6159765
