Quartz crystal oscillators with direct resonator heating

Long, Bo; Weaver, Gregory

doi:10.1109/freq.1991.145925

Cited by 10 publications

(2 citation statements)

References 7 publications

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“…It is, however, impractical to fabricate such structures at low cost. A better approach is to use regular quartz resonators and maximize the thermal resistance to the substrate [7].…”

Section: B Design Study Of a Dhr-ocxomentioning

confidence: 99%

“…Several designs of DHR-OCXOs have been presented in literature [3], [4], [7], [8]. In [7], ring-shaped, thin-film heaters are applied on the quartz resonator, which can be packaged in an evacuated four-pin TO8 or SM case. This heater design, however, causes rather high temperature gradients because of large heat fluxes at the contact pins, as FEM calculations show.…”

Section: B Design Study Of a Dhr-ocxomentioning

confidence: 99%

See 1 more Smart Citation

Application of finite element method and SPICE simulation for design optimization of oven-controlled crystal oscillators

Hillerich¹,

Nagler²

2001

IEEE Trans. Ultrason., Ferroelect., Freq. Contr.

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Thermal finite element method (FEM) calculations and SPICE-based dynamic thermal models are used to simulate and optimize the static and dynamic performance of miniaturized oven-controlled crystal oscillators (OCXOs). FEM can be used to generate the values of the SPICE circuit elements. Good agreement is achieved between simulation and measurement. Several application examples, including directly heated OCXOs, are discussed.

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“…It is, however, impractical to fabricate such structures at low cost. A better approach is to use regular quartz resonators and maximize the thermal resistance to the substrate [7].…”

Section: B Design Study Of a Dhr-ocxomentioning

confidence: 99%