Leakage power reducing apparatus

Leakage power reducing apparatus

  • CN 101,304,259 A
  • Filed: 05/07/2008
  • Published: 11/12/2008
  • Est. Priority Date: 05/07/2007
  • Status: Active Application
First Claim
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1. leakage power reducing apparatus suppresses from the transmitter end directly or leak into the transmission signal of receiver end via the reflection of antenna, and wherein, described leakage power reducing apparatus comprises:

  • Circulator has first port, second port and the 3rd port, will export from second port from the transmission signal of first port input, and will export the 3rd port from the signal of second port input;

    Duplexer, have the first terminal, second terminal and the 3rd terminal, second port of the first terminal and above-mentioned circulator is connected, between the first terminal and second terminal, pass through to send the signal of frequency band, the signal that suppresses frequency acceptance band simultaneously, by the signal of frequency acceptance band, suppress to send the signal of frequency band simultaneously between second terminal and the 3rd terminal, the signal that will send frequency band and frequency acceptance band between the first terminal and the 3rd terminal together suppresses;

    The amplitude phase regulator is connected with the 3rd port of above-mentioned circulator, and adjustment is exported with offseting signal as sending frequency band behind the amplitude and phase place of the signal of above-mentioned circulator input;

    AndSynthesizer, be transfused to from the output signal of the 3rd terminal of above-mentioned duplexer with from the above-mentioned transmission frequency band offseting signal of above-mentioned amplitude phase regulator output, and output by above-mentioned transmission frequency band with offseting signal to the leakage that comprises in the output signal from the 3rd terminal of above-mentioned duplexer the transmission band component of the transmission signal signal after suppressingSecond terminal of above-mentioned duplexer is the terminal that is connected to above-mentioned antenna.

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