Tunable Microstrip Ring Bandpass Filter
The simulated and experimental results of a tunable microstrip ring bandpass filter are presented in this paper. A meander path is loaded in the ring resonator for achieving different resonator lengths by using the ON or OFF state of PIN diodes and then switch the passband from 2.47GHz to 5.1 GHz. When the PIN switch turns to ON state, which is equivalent to a resistance, the bandpass filter has a center frequency of 5.1 GHz, with a passband bandwidth of 520MHz and an insertion loss of 1.37dB. When the switch turns to OFF state, which is equivalent to a capacitance, the filter works in the center frequency of 2.47GHz, with a passband bandwidth of 10MHz and an insertion loss of 3.11dB.
Lan Yao Wei Hong Ke Wu
State Key Laboratory of Millimeter Waves, School of Information Science and Engineering Southeast University, Nanjing, 210096, China
国际会议
2011 China-Japan Joint Microwave Conference(2011年中日微波会议CJMW 2011)
杭州
英文
259-261
2011-04-20（万方平台首次上网日期，不代表论文的发表时间）