Realization of Ultra-High Quality Factor of Dual-T Quartz Crystal Resonator Circuit

被引：0

作者：

Senanayaka, Shasika Shaminda ^{[1
]}

Haba, Tomoyuki ^{[1
]}

Yamamoto, Shyunya ^{[1
]}

Izumiya, Shyoji ^{[1
]}

Adachi, Takehiko ^{[1
]}

机构：

[1] NIHON DEMPA KOGYO CO LTD, Engn Dept 3, Sayama, Osaka, Japan

来源：

2012 IEEE INTERNATIONAL ULTRASONICS SYMPOSIUM (IUS) | 2012年

关键词：

crystal resonator; quality factor; dula-T circuit; resonator; oscillator;

D O I：

10.1109/ULTSYM.2012.0549

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 paper, we have shown the method to obtain the ultra-high quality factor of a dual-T crystal resonator circuit. In this circuit, the phase shifters are inserted in each T circuit of the dual-T crystal resonator circuit. We have made the simulation and measurement of the proposed dual-T crystal circuit. The attained effective Q is about three times bigger than the unloaded Q of a crystal resonator (about 140,000). And we have made the oscillator using this dual-T circuit and made the simulation of phase noise. 30 through 60 dB improvement of phase noise is suggested in 1/f offset frequency region. The measurement shows the comparable phase noise improvement.

引用

页数：3

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