发明名称 |
Microwave oscillator hermetically sealed and coupled to dielectric resonator |
摘要 |
The interior of a metal housing is divided by a dielectric substrate into two compartments. At least one of the compartments is kept air-tight. The substrate carries thereon a semiconductor active element chip for oscillation within the air-tight compartment and a dielectric resonator within the other compartment. The chip and the resonator, electromagnetically coupled with the chip, constitute a microwave oscillator whose oscillation frequency can be stabilized. A metal screw is threaded into that wall of the housing which defines the other compartment in a predetermined positional relationship to the resonator. The metal screw is rotatable to vary the distance between the screw and the resonator and, thereby, the oscillation frequency.
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申请公布号 |
US4609883(A) |
申请公布日期 |
1986.09.02 |
申请号 |
US19840644286 |
申请日期 |
1984.08.27 |
申请人 |
NEC CORPORATION |
发明人 |
MIZUMURA, MOTOO;WADA, KENZO |
分类号 |
H01P7/10;H03B1/00;H03B5/18;(IPC1-7):H03B5/18;H03B7/14 |
主分类号 |
H01P7/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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