Title :
Planar circularly symmetric EBG´s to improve the isolation of array elements
Author :
Llombart, N. ; Neto, A. ; Gerini, G. ; de Maagt, P.
Author_Institution :
Radar Group, TNO, Den Haag, Netherlands
Abstract :
A trade off has to be made between bandwidth and isolation of array elements when designing phased arrays. When the isolation is achieved via a PCS-EBG that is aimed at reducing the TM00 mode only, the reduction of bandwidth could be even more important rather than the one obtained when using a more standard cavity backing. This is due to the need of using a higher dielectric constant.
Keywords :
antenna phased arrays; antenna radiation patterns; permittivity; photonic band gap; planar antenna arrays; PCS-EBG; TM00 mode; array element isolation; dielectric constant; phased arrays; planar circularly symmetric EBG; Antenna arrays; Antennas and propagation; Bandwidth; Isolation technology; Metamaterials; Periodic structures; Phased arrays; Propagation constant; Space technology; Surface waves;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2005 IEEE
Print_ISBN :
0-7803-8883-6
DOI :
10.1109/APS.2005.1551877
