发明名称 |
Microwave oscillator using a ring resonator and operable as a remote temperature sensor |
摘要 |
An ambient condition sensor is embodied in an oscillator which generates an output signal having a frequency which is proportional to the ambient condition of the environment in which it is located. The oscillator includes a ring resonator consisting of a metallic ring located in the output plane of a grounded source gallium arsenide MESFET type transistor oscillator formed on a temperature sensitive dielectric substrate. The circumference of the ring is directly related to the ring resonator's resonant frequency. More particularly, the circumference of the ring is a multiple of the wavelength of the oscillator's output signal. Such a device permits unmanned, remote and inexpensive temperature sensing in places generally unsuited for operator presence.
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申请公布号 |
US5115210(A) |
申请公布日期 |
1992.05.19 |
申请号 |
US19910687601 |
申请日期 |
1991.04.15 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE ARMY |
发明人 |
CUMMINGS, MICHAEL;CADOTTE, JR., ROLAND;RACHLIN, ADAM |
分类号 |
G01K5/52;H03B5/18 |
主分类号 |
G01K5/52 |
代理机构 |
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代理人 |
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地址 |
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