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SIGNAL TRANSMITTING/RECEIVING CIRCUIT INCLUDING AN IMPEDANCE MATCHING CIRCUIT

  • US 20110169587A1
  • Filed: 12/28/2010
  • Published: 07/14/2011
  • Est. Priority Date: 01/14/2010
  • Status: Active Grant
First Claim
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1. A signal transmitting/receiving circuit, comprising:

  • a transmitter, for transmitting an output signal;

    a receiver, for receiving an input signal;

    a balun, having a first input terminal, a second input terminal and an output terminal; and

    an impedance matching circuit, coupled between the transmitter, the receiver and the balun, for providing a transmitting impedance when the transmitter transmits the output signal such that the output signal is output at an output terminal of the balun via a transmitting path, and providing a receiving impedance when the receiver receives the input signal such that the input signal is transmitted from the output terminal of the balun to the receiver via a receiving path.

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