发明名称 |
Multiple-loop microwave frequency synthesizer using two phase lockloops |
摘要 |
A multiple-loop microwave frequency synthesizer is provided with an upper and a lower phased-lock loop. The phased-lock loops are mutually connected to a novel sampling mixer and their outputs are connected to an up-converter for providing microwave frequency generated signals. The phased-lock loops are provided with a plurality of programmable frequency dividers connected to a processor controller to provide a wide range of adjustable frequencies up to 20 gigahertz at the output of the frequency synthesizer.
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申请公布号 |
US4839603(A) |
申请公布日期 |
1989.06.13 |
申请号 |
US19870100400 |
申请日期 |
1987.09.24 |
申请人 |
UNISYS CORPORATION |
发明人 |
MOWER, VAUGHN L.;DENERIS, EVAN A.;COX, JOHN B. |
分类号 |
H03L7/23 |
主分类号 |
H03L7/23 |
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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