发明名称 |
Automatic substitution of a reference oscillator for synchronizing two transmitter co-channel local oscillators |
摘要 |
A circuit for automatically substituting a reference oscillator for synchronizing two transmitter co-channel local oscillators. The circuit includes a first bias switching device for switching a first power supply to a first reference oscillator and a second bias switching device for switching a second power supply to a second reference oscillator. The first and second reference oscillators generate first and second reference signals for synchronizing the oscillator frequencies. A first divider firstly and secondly divides and outputs the power of the first reference signal. A second divider firstly and secondly divides and outputs the power of the second reference signal. A first combining device inputs the power of the firstly-divided first reference signal and the secondly-divided second reference signal and outputs the power to the phase locked dielectric resonator oscillator for the vertical polarization wave. A second combining device inputs the power of the firstly-divided second reference signal and the secondly-divided first reference signal and outputs the power to the phase locked dielectric resonator oscillator for the horizontal polarization wave. A first switching control switches the second bias switching device in response to generation of the first reference signal secondly-divided in the first divider. A second switching control switches the first bias switching device in response to generation of the second reference signal secondly-divided in the second divider.
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申请公布号 |
US5818305(A) |
申请公布日期 |
1998.10.06 |
申请号 |
US19960688371 |
申请日期 |
1996.07.30 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
JEON, SEONG-MIN |
分类号 |
H03L7/00;H03B5/18;H03D7/00;H03J5/24;H03L7/07;(IPC1-7):H03L7/07 |
主分类号 |
H03L7/00 |
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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