Resonant Frequency and Bandwidth Tunable Ring Resonator Employing MEMS Tunable Capacitors

被引：0
|
作者：
Kawai, Kunihiro [1 ]
Okazaki, Hiroshi [1 ]
Narahashi, Shoichi [1 ]
机构：
[1] NTT DOCOMO Inc, Res Labs, Yokosuka, Kanagawa, Japan
来源：
2012 ASIA-PACIFIC MICROWAVE CONFERENCE (APMC 2012) | 2012年
关键词：
Tunable resonators; MEMS; microstrip;
D O I：
暂无
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
This paper proposes a tunable resonator that can tune its resonant frequency and bandwidth independently by one type of tuning device. The tunable resonator comprises a ring resonator, variable parallel resonant circuits (VPRCs), and micro electromechanical systems (MEMS) digitally-tunable capacitors (MDTCs). Three MDTCs incorporated into the ring resonator are used to change the resonant frequency of the resonator. The VPRC works as an LC-tank circuit for tuning the bandwidth of the resonator. The proposed resonator is fabricated using a microstrip structure. The measured resonant frequency can be changed from 1.75 GHz to 1.18 GHz. The fractional bandwidth can be tuned from 2.7% to 9.6% at 1.75 GHz.
引用
收藏
页码：729 / 731
页数：3
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