[2] CNRS, IEMN IRCICA, UMR, F-59652 Villeneuve Dascq, France
来源:
2007 EUROPEAN MICROWAVE CONFERENCE, VOLS 1-4
|
2007年
关键词:
negative resistance circuits;
microelectromechanical devices;
microstrip resonators;
oscillator;
piezoelectric material;
tuning;
tunable devices and circuits;
varactors;
voltage controlled oscillator;
D O I:
10.1109/EUMC.2007.4405140
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
In this work, The mechanical movements of a piezoelectric actuator is used to change the capacitance values of an air-gap capacitor. With a bias voltage up to 200 V the effective air gap size, S-eff, increases continuously from 5 mu m to 10.5 mu m. Due to that the coupling capacitance is tuned from 0.22 pF to 0.1 pF, i.e. tuning ratio of 2.2. When employing in hybrid packaged tunable voltage-controlled oscillator, its oscillation frequency is tuned from 34.40 GHz; to 36 GHz, tuning of 5% (absolute bandwidth tuning of 1.6 GHz).