FREQUENCY STABILITY OF HIGH-OVERTONE BULK-ACOUSTIC RESONATORS

被引:15
|
作者
BAILEY, DS [1 ]
DRISCOLL, MM [1 ]
JELEN, RA [1 ]
MCAVOY, BR [1 ]
机构
[1] WESTINGHOUSE ELECT CORP,CTR SCI & TECHNOL,PITTSBURGH,PA 15235
关键词
D O I
10.1109/58.165564
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
Demand for improved short-term frequency stability of acoustic components used in high performance oscillators has been constantly increasing over the last few years. High-overtone bulk-acoustic resonators (HBARs) have shown extremely good performance in this area. The results of phase noise measurement for HBARs operating at 640 MHz with insertion losses of 10-15 dB and unmatched Q's greater than 110 K are reported. Noise measurements made on these resonators with input drive levels of 16 dBm have shown self-noise levels of S(y)(f = 100Hz) = 8.0 X 10(-26) for 1/f noise that represents state-of-the-art for a UHF resonator.
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页码:780 / 784
页数:5
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