Title :
Isolation enhancement between microstrip patch antennas using dual-band EBG structure without common ground plane
Author :
Choi, Wonsang ; Lee, Hongmin
Author_Institution :
Dept. of Electron. Eng., Kyonggi Univ., Suwon, South Korea
Abstract :
This paper presents an efficient method to enhance the isolation level between two dual-band E-shape microstrip patch antennas using dual-band EBG unit cells which operates in UMTS Tx (1.92-1.98GHz) and Rx (2.11-2.17GHz) band, respectively. The proposed EBG structure made with a periodic array of two different geometric dimensions of unit cell which has a modified mushroom-type. Overall size of the fabricated antenna is 210.5 mm × 117 mm. The fabricated two different EBG unit cell sizes are 15.6 mm × 4 mm and 17.4 mm × 4 mm, respectively. The experimental results show that the isolation levels between antennas in Tx/Rx band are under -35 dB.
Keywords :
3G mobile communication; geometry; microstrip antenna arrays; photonic band gap; UMTS; dual-band E-shape microstrip patch antenna; dual-band EBG structure; dual-band EBG unit cell; electromagnetic band gap; fabricated antenna size; frequency 1.92 GHz to 1.98 GHz; frequency 2.11 GHz to 2.17 GHz; geometric dimension; isolation enhancement; isolation level; periodic array; 3G mobile communication; Metamaterials; Microstrip; Microstrip antenna arrays; Microstrip antennas; Periodic structures;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6348050
