A novel microstrip LC reconfigurable band-pass filter

作者：Xiang Qianyin^*; Feng Quanyuan; Huang Xiaoguo; Jia Dinghong

来源：Progress in Electromagnetics Research Letters, 2013, 36: 171-179.

• Equivalent circuit model
• Fractional bandwidths
• LC resonators
• Microstripes
• Reconfigurable
• Semiconductor varactors
• Tuning ranges

In this paper, we propose and develop a novel reconfigurable bandpass filter based on microstrip LC resonators. The equivalent circuit model of the proposed filter is presented. The filter can be reconfigured by tuning the capacitance of the microstrip LC resonators. A reconfigurable bandpass filter based on semiconductor varactor diode loaded microstrip LC resonators with a tuning range of 2.496 GHz to 2.937 GHz, and a fractional bandwidth of 6.3% to 8.2% is demonstrated, and the measured insertion loss is 1.7 dB to 3.8 dB. The out-band rejection is better than 25 dB up to 10 GHz.

• 出版日期2013
• 单位西南交通大学