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Combined aircraft TCAS/transponder with common antenna system

  • US 7,436,350 B1
  • Filed: 09/30/2004
  • Issued: 10/14/2008
  • Est. Priority Date: 09/30/2004
  • Status: Active Grant
First Claim
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1. A combined multi-frequency transmitter and receiver with common antenna system, comprising:

  • a first and second antenna;

    a multiple frequency transmitter and receiver;

    a first antenna module coupled to said multiple frequency transmitter and receiver and said first antenna which provides an interface between said multiple frequency transmitter and receiver and said first antenna; and

    a second antenna module coupled to said multiple frequency transmitter and receiver and said second antenna which provides an interface between said multiple frequency transmitter and receiver and said second antenna;

    wherein each of said first and second antenna modules includes a beam forming network coupled to a switched divider and combiner, said beam forming network and said switched divider and combiner providing amplitude and phase calibration whereby said multi-frequency transmitter and receiver transmits and receives signals of at least two distinct frequencies, said multiple frequency transmitter and receiver being operable to determine a range of another object from a location of said multiple frequency transmitter and receiver.

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