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Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator

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Voltage-controlled narrowband and wide, variable-range four-segment quartz crystal oscillator.

Ruzaini Ruslan¹, Tomio Satoh, Tetsuya Akitsu

¹International Graduate School of Medicine and Engineering, University of Yamanashi, Kofu, Japan.

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control

|April 7, 2012

Summary

This study introduces a novel voltage-controlled quartz crystal oscillator. The new design achieves a wide, variable frequency range and narrowband response, even across the series resonance frequency.

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Area of Science:

Electrical Engineering
Electronics
Physics

Background:

Conventional quartz crystal oscillators use a specific feedback loop configuration.
Achieving variable frequency and narrowband response simultaneously presents design challenges.

Purpose of the Study:

To develop a voltage-controlled variable-frequency quartz crystal oscillator.
To achieve narrowband response and a wide, variable frequency range.
To enable oscillation across the series resonance frequency.

Main Methods:

A novel four-segment configuration for the quartz crystal oscillator was designed.
The quartz crystal resonator was strategically placed between the loop circuit and ground potential.
The performance was evaluated across the series resonance frequency.

Main Results:

The developed oscillator demonstrates voltage control for variable frequency.
The design achieves a wide, variable frequency range.
Narrowband response and oscillation across the series resonance frequency were successfully demonstrated.

Conclusions:

The proposed four-segment configuration offers a viable method for creating voltage-controlled quartz crystal oscillators.
This design overcomes limitations of conventional oscillators, enabling wider frequency tuning and operation at series resonance.