Title :
Design of unsymmetrical anti-podal taper slot element for array antenna
Author :
Chen, Wenhua ; Yao, Yuan ; Zhang, Zhijun ; Feng, Zhenghe ; Chen, Yaqin
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing
Abstract :
A novel unsymmetrical anti-podal taper slot element has been proposed for array antenna to enhance the bandwidth of ultra wide band array. By using unsymmetrical taper slot structure, the aperture of the slot in lower band can be increased. Compared with symmetric anti-podal taper slot array in the same size, the relative bandwidth has been improved to 8:1 approximately instead of 5:1. Experimental results show the resonant band cover the range of 1.5-11.8 GHz. To avoid radiation leaning of the main beam, mirrored arrangement scheme has been employed for array antenna.
Keywords :
antenna radiation patterns; slot antenna arrays; ultra wideband antennas; anti-podal taper slot array; array antenna; mirrored arrangement scheme; radiation leaning; ultra wideband array; unsymmetrical anti-podal taper slot element; Antenna arrays; Apertures; Bandwidth; Design engineering; Electronic mail; Equations; Prototypes; Resonance; Slot antennas; Ultra wideband antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2008. AP-S 2008. IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-2041-4
Electronic_ISBN :
978-1-4244-2042-1
DOI :
10.1109/APS.2008.4620051
