Title :
Two nearby dual-band antennas with high port isolation
Author :
Lui, Cai-Yi ; Wang, Yu-Shin ; Chung, Shyh-Jong
Author_Institution :
Nat. Chiao Tung Univ., Hsinchu
Abstract :
The structure of two dual-band nearby antennas with high port isolation is proposed. The decoupling and matching network consist of only reactive elements so that it does not dissipate the input power. For dual-band antenna, it is usually easier to have high isolation in high frequency band (5 GHz) due to its short wave length. Therefore, the decoupling design can be turned to improve low frequency band and not to influence the high frequency band as much as possible. Besides, the matching circuit is still required to match both low and high bands for maintaining good impedance matching. Measurement results demonstrate the good performance of the proposed configuration.
Keywords :
impedance matching; multifrequency antennas; wireless LAN; IEEE 802.11 a/b/g WLAN; decoupling method; dual-band antennas; high port isolation; impedance matching; matching circuit; Capacitors; Coupling circuits; Degradation; Dielectric substrates; Dual band; Impedance matching; MIMO; Microstrip; Mobile antennas; Scattering parameters;
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.2008.4619893
