基于高次谐波体声波谐振器的微波振荡器设计  

Design of Microwave Oscillator Based on High-Overtone Bulk Acoustic Resonator

作　　者：闫波 刘梦伟[1] 王文[1] 宫俊杰[1] 

机构地区：[1]中国科学院声学研究所声场声信息国家重点实验室,北京100190 [2]中国科学院大学,北京100049

出　　处：《压电与声光》2018年第1期1-4,共4页Piezoelectrics & Acoustooptics

基　　金：国家自然科学基金资助项目(11374327)

摘　　要：基于高次谐波体声波谐振器(HBAR)的高品质因数(Q)值和多模谐振特性,设计了Colpitts和Pierce两种形式的微波振荡器。采用HBAR与LC元件组成谐振回路的方法,与放大电路构成反馈环路直接基频输出微波频段信号。Colpitts振荡器输出信号频率为980 MHz,信号输出功率为-4.92dBm,信号相位噪声达-119.64dBc/Hz@10kHz;Pierce振荡电路输出信号频率达到2.962GHz,信号输出功率为-9.77dBm,信号相位噪声达-112.30dBc/Hz@10kHz。Two types of microwave oscillators,Colpitts and Pierce microwave oscillators,are designed based on the high Qand multi-mode resonant characteristics of high-overtone bulk acoustic resonator（HBAR）.The fundamental frequency microwave band signals can be output directly by using HBAR and LC components to consist of feedback oscillating loop with amplifier circuit.Theoutput signal frequency of Colpitts oscillator is 980 MHz with output signal power of-4.92 dBm and phase noise of-119.64 dBc/Hz at 10 kHz offset.And the output signal frequency of the Pierce oscillator circuit is up to 2.962 GHz with output signal power of-9.77 dBm and phase noise of-112.30 dBc/Hz at 10 kHz offset.

关 键 词：高次谐波体声波谐振器 微波 振荡器 相位噪声 

分 类 号：TN713[电子电信—电路与系统] TB556[理学—物理]