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Short-range radar transceiver employing a FET oscillator

  • US 4,931,799 A
  • Filed: 04/24/1989
  • Issued: 06/05/1990
  • Est. Priority Date: 04/24/1989
  • Status: Expired due to Fees
First Claim
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1. A short-range radar transceiver operable over a range in which the sideband noise doe snot obscure the intermediate frequency signal, comprising:

  • field effect transistor oscillator means for generating at time varying signal;

    antenna means for transmitting signals to a target and for receiving signals reflected from a target;

    means for coupling said time varying signal to said antenna means to be transmitted therefrom;

    a balanced mixer having a first port for receiving said time varying signal and a second port for receiving signals from said antenna means and functioning as an AM noise suppressor, for producing an intermediate frequency signal; and

    signal processing means responsive to said intermediate frequency signal for producing indications of the range and/or the rate of change of said range of said target.

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