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Ultra-high frequency simultaneous transmission and reception head, millimeter wave transmitter - receiver and radar using such a head

  • US 4,333,076 A
  • Filed: 06/09/1980
  • Issued: 06/01/1982
  • Est. Priority Date: 06/12/1979
  • Status: Expired due to Term
First Claim
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1. An ultra-high frequency head comprising:

  • a microwave oscillator which can be used both as a transmission source and as a local oscillator;

    a polarization duplexer having a first, a second and a third port, said first port opening onto a two-way square cross-section guide destined to be connected with transmitting and/or receiving antenna, said second port opening onto a first rectangular cross-section guide coupled with said microwave oscillator and having a straight longitudinal shape, and said third port opening onto a second rectangular cross-section guide having a shape bent in such a manner that it intersects with said first rectangular guide, the rectangular cross-section of both rectangular guides being arranged so as to have the electrical components of the electrical fields to be orthogonal in first and second retangular guides;

    a mixer situated in said second rectangular guide in the vicinity of the intersection of said first and second rectangular guides.

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