Cavity resonator, use of a cavity resonator and oscillator circuit
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United States of America Patent
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Oct 11, 2011
Grant Date -
Nov 12, 2009
app pub date -
Jun 1, 2005
filing date -
Jun 3, 2004
priority date (Note) -
Expired
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Abstract
A cavity resonator having temperature compensation which comprises a pot and a cover, which together enclose a cavity resonance volume. The pot comprises a first material, which has a first temperature expansion coefficient and the cover comprises a second material, which has a second temperature expansion coefficient. The second temperature expansion coefficient is greater than the first temperature expansion coefficient, and an expansion of the pot and a deformation of the cover results upon a temperature increase, which each independently and also together cause an enlargement of the cavity resonance volume. Simultaneously, the resonance frequency remains essentially constant.
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