An Investigation Into The Effect Of The Bias Line On The Insertion Loss Of RF-MEMS Tunable Filter
Explicit design formulae to describe the effect of the bias line on the insertion loss of RF-MEMS tunable filter are presented at first in this paper. Afterwards, a five-order RF-MEMS tunable filter using five identical MEMS capacitance networks is designed and simulated to justify the proposed formulae. From the design example, it is seen that the insertion loss of the filter increased from -7dB to -5dB when the resistance of the bias line varies from Ikii to 8kΩ. Finally, the bias line with meander-line shape is introduced in this paper to increase the resistance of the bias line.
RF-MEMS tunable filter capacitance network bias line insertion loss
Cheng Tu Jingfu Bao Yijia Du
Department of Electronic Engineering, University of Electronic Science and Technology of China,Chengdu, 611731, PRC
国际会议
2011 China-Japan Joint Microwave Conference(2011年中日微波会议CJMW 2011)
杭州
英文
429-432
2011-04-20(万方平台首次上网日期,不代表论文的发表时间)