发明申请
US20090278631A1 CAVITY RESONATOR, USE OF A CAVITY RESONATOR AND OSCILLATOR CIRCUIT 失效
CAVITY谐振器,CAVITY谐振器和振荡器电路的使用

CAVITY RESONATOR, USE OF A CAVITY RESONATOR AND OSCILLATOR CIRCUIT
摘要:
A cavity resonator (20) having temperature compensation which comprises a pot (21) and a cover (22), which together enclose a cavity resonance volume (V). The pot (21) comprises a first material, which has a first temperature expansion coefficient (α1) and the cover (22) comprises a second material, which has a second temperature expansion coefficient (α2). The second temperature expansion coefficient (α2) is greater than the first temperature expansion coefficient (α1), and an expansion of the pot (21) and a deformation of the cover (22) results upon a temperature increase, which each independently and also together cause an enlargement of the cavity resonance volume (V). Simultaneously, the resonance frequency remains essentially constant.
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