Title :
Wide band high gain EMC patch active array elements with low mutual coupling
Author :
Revankar, U.K. ; Harishchandra ; Sreenivasulu, K. ; Veerabhadra, K.M.
Author_Institution :
Electron. & Radar Dev. Establ., Bangalore, India
Abstract :
This paper presents a newly conceived structure of the two-layer stacked electromagnetically coupled (EMC) circular patch antenna radiating element. The structure has been constructed with an integral independent ground plane and optimised for all its parameters, resulting in a large impedance bandwidth of more than 15% in L-band, offering good pattern characteristics, low crosspolarisation levels and a high gain. The radiating element has been tested successfully for its performance in a 16-element (4/spl times/4) planar active array, by synthesising low sidelobe patterns over large array scan angles.
Keywords :
active antenna arrays; antenna radiation patterns; electromagnetic coupling; microstrip antenna arrays; EMC patch active array elements; L-band; electromagnetically coupled radiating element; impedance bandwidth; integral independent ground plane; low cross-polarisation levels; low sidelobe patterns; pattern characteristics; two-layer stacked circular patch antenna; wideband high gain antenna; Bandwidth; Electromagnetic compatibility; Electromagnetic coupling; Feeds; Impedance; Microstrip antenna arrays; Mutual coupling; Phased arrays; Probes; Wideband;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2001. IEEE
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-7070-8
DOI :
10.1109/APS.2001.960088
