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Dual horn, multi-band radar detector

  • US 4,939,521 A
  • Filed: 09/12/1988
  • Issued: 07/03/1990
  • Est. Priority Date: 12/23/1987
  • Status: Expired due to Term
First Claim
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1. A radar detection device for detecting frequencies in a plurality of frequency bands comprising:

  • a plurality of horn antennae;

    a wave guide and microstrip line for signal from said antennae;

    local oscillators associated with the microstrip line, each local oscillator being selected to produce an intermediate signal of similar frequency when mixed, at its fundamental frequency and/or twice its fundamental frequency, with signal detected by a respective antenna;

    a mixer common to the microstrip line and the local oscillators;

    and signal processing circuitry to further process said intermediate signal to actuate alarm means.

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