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Dual antenna diversity transmitter and system with improved power amplifier efficiency

  • US 20050143024A1
  • Filed: 05/03/2004
  • Published: 06/30/2005
  • Est. Priority Date: 12/26/2003
  • Status: Active Grant
First Claim
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1. A dual antenna diversity transmitter, comprising:

  • a base-band process circuit for processing a base-band signal to output a base-band transmitting signal;

    a transmitter circuit for converting the base-band transmitting signal to a radio frequency transmitting signal;

    a first bypass switch opened or closed by means of a switch control signal, and receiving the radio frequency transmitting signal;

    a first antenna receiving an output of the first bypass switch;

    a second bypass switch opened or closed by means of the switch control switch, and receiving the radio frequency transmitting signal;

    a power amplifier amplifying and outputting an output of the second switch; and

    a second antenna receiving an output of the power amplifier.

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