Summary
International Symposium on Antennas and Propagation
2011
Session Number:FrP2
Session:
Number:FrP2-65
Cascaded Dual-mode Ring Resonator Switch in WiMax Band using Transmission Line λ/4
Ki-Eon Jang, Wu-Seong Lee, Ha-Chul Kim, Hyun-Chul Choi,
pp.-
Publication Date:2011/10/25
Online ISSN:2188-5079
Summary:
A band-rejection type RF switch, which has very high off-isolation, on-state insertion loss, and adjustable bandwidth, is proposed using cascaded dual ring resonator, λ/4 transmission line and four PIN diodes. To dual-mode transmission, the ring resonator is directly fed using non-orthogonal feeding. Also we can wide of bandwidth about 181 MHz than dual-mode ring resonator switch using shunt-mounted PIN diode. The switch operates at the bias condition of 6.9 V and 396 mA. It performs with a isolation of 68.125 dB @ 2.502 GHz, 68.482 dB @ 2.683 GHz, and 68 dB bandwidth is 181 MHz. Insertion loss in bandwidth is measured below 0.45 dB.