Title :
Isolation improvement between antennas with band-stop structures
Author :
Hsieh, C.P. ; Chiu, T. ; Huang, K. ; Wu, H.B.
Author_Institution :
Dept. of Electr. Eng., Nat. Central Univ., Jhongli
Abstract :
In communication system, the effect of mutual coupling between the closely-packed antennas often deteriorates the transmission capacity. In this paper, band-stop filters using spurline and CPS structures between two antennas are proposed to reduce the effect of the coupling. Simulation and measurement show that more than 20 dB isolation between antennas has been obtain in a 2.45 GHz MIMO system.
Keywords :
MIMO systems; antenna arrays; band-stop filters; coplanar transmission lines; CPS structures; MIMO system; band-stop filters; band-stop structures; closely-packed antennas; communication system; frequency 2.5 GHz; isolation improvement; mutual coupling; spurline structure; transmission capacity; Antenna arrays; Antenna measurements; Antennas and propagation; Bandwidth; Coupling circuits; MIMO; Microstrip antenna arrays; Microstrip antennas; Mutual coupling; Periodic structures;
Conference_Titel :
Microwave Conference, 2008. APMC 2008. Asia-Pacific
Conference_Location :
Macau
Print_ISBN :
978-1-4244-2641-6
Electronic_ISBN :
978-1-4244-2642-3
DOI :
10.1109/APMC.2008.4958647
