NDLI: Precise determination of VHF quartz crystal resonator equivalent parameters

Content Provider	IEEE Xplore Digital Library
Author	Oomura, Y. Watanabe, Y.
Copyright Year	1990
Description	Author affiliation: Tokyo Metropolitan Univ., Japan (Oomura, Y.; Watanabe, Y.)
Abstract	A method developed for the accurate determination of VHF quartz crystal resonator equivalent parameters and resonant frequencies is presented. This method uses an electrical equivalent circuit which includes the spurious responses close to the main mode and the resistance from the evaporated electrodes. The equivalent parameters and the resonant frequencies are determined by a non-linear least squares method from the impedance characteristics of the resonators under test. It is shown that an excellent agreement is obtained between the impedance characteristics calculated by the equivalent parameters and the experimental data. Good accordance is obtained between the calculated non-reactive frequency and the experimental value. Although strong spurious responses exist in the vicinity of main resonance, the exact determination of equivalent parameters can be made by this method.<>
Starting Page	363
Ending Page	366
File Size	286103
Page Count	4
File Format	PDF
DOI	10.1109/FREQ.1990.177520
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1990-05-23
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	VHF circuits Equivalent circuits Impedance Resonance Resonant frequency Least squares methods Electrodes Circuit testing Energy loss Electric resistance
Content Type	Text
Resource Type	Article

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