发明授权
- 专利标题： MICROWAVE TRANSMISSION SYSTEM
- 专利标题（中）： 微波传输系统
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申请号： EP95915967.4申请日： 1995-05-04
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公开(公告)号： EP0707757B1公开(公告)日： 1999-12-29
- 发明人: KOOL, Leo , CLARKE, Ian, Mc.Cullocy
- 申请人： Koninklijke Philips Electronics N.V. , PHILIPS NORDEN AB
- 申请人地址： Groenewoudseweg 1 5621 BA Eindhoven NL
- 专利权人： Koninklijke Philips Electronics N.V.,PHILIPS NORDEN AB
- 当前专利权人： Koninklijke Philips Electronics N.V.,PHILIPS NORDEN AB
- 当前专利权人地址： Groenewoudseweg 1 5621 BA Eindhoven NL
- 代理机构： Deguelle, Wilhelmus Hendrikus Gerardus
- 优先权： EP94201250 19940506
- 国际公布： WO9531034 19951116
- 主分类号： H03D9/06
- IPC分类号： H03D9/06
摘要：
In a microwave transmission system a microwave signal is transmitted by a transmitter (1) using an antenna (2) to a receiver (4) which employs an antenna (3). The received signal is coupled to a mixer (17) via a waveguide section (15) having a cut off frequency being higher than the frequency of the signal generated by the local oscillator unit (18). In this way, undesired emission of local oscillator signal is avoided. Furthermore no additional image rejection filter is required.
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