发明授权
- 专利标题： Multiple cavity tuning of a transmitter output in a communication system
- 专利标题（中）： 通信系统中发射机输出的多腔调谐
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申请号： US907981申请日： 1992-07-02
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公开(公告)号： US5263047A公开(公告)日： 1993-11-16
- 发明人: Michael D. Kotzin , Stephen L. Spear
- 申请人： Michael D. Kotzin , Stephen L. Spear
- 申请人地址： IL Schaumburg
- 专利权人： Motorola, Inc.
- 当前专利权人： Motorola, Inc.
- 当前专利权人地址： IL Schaumburg
- 主分类号： H04B1/713
- IPC分类号： H04B1/713 ; H04B1/7136 ; H04L27/30
摘要：
A base-site (304) combines baseband frequency hopping and fast-synthesizer hopping to produce an economical frequency hopping communication system (300). The base-site (304) combines the fast-synthesizer frequency hopping capability of transmitters (307-309) with baseband frequency hopping to produce a frequency hopping communication system (300) which serves the same number of subscribers served by transmitters (208-213) in a purely baseband hopping communication system (200), but with fewer transmitters (307-309). The implementation of frequency-selective cavities (312-317) having very low loss eliminates the need for wideband hybrid combiners (112-114), which in turn eliminates transmitted-signal power loss experienced in a purely fast-synthesizer frequency hopping communication system (100).
公开/授权文献
- US4719078A Method of sintering compacts 公开/授权日：1988-01-12
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