Voltage-controlled narrowband and wide, variable-range four-segment quartz crystal oscillator |
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Authors: | Ruslan Ruzaini Satoh Tomio Akitsu Tetsuya |
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Affiliation: | International Graduate School of Medicine and Engineering, University of Yamanashi, Kofu, Japan. |
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Abstract: | In this work, our goal is to develop a voltage-controlled variable-frequency quartz crystal oscillator with narrowband response, wide, variable frequency range and the capacity to oscillate across the series resonance frequency using a four-segment configuration of a quartz crystal oscillator. In conventional quartz oscillators, the quartz resonator is inserted in the feedback loop between the input and the output of the active circuit, providing sufficient gain and the phase relation. In the oscillator developed here, the quartz crystal resonator is inserted between the loop circuit and the ground potential. The performance of the voltage-controlled variable-frequency oscillator is demonstrated across the series resonance frequency. |
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