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Antenna arrangement

  • US 6,002,370 A
  • Filed: 08/11/1998
  • Issued: 12/14/1999
  • Est. Priority Date: 08/11/1998
  • Status: Expired due to Term
First Claim
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1. A radio frequency antenna arrangement for selective operation at orthogonal polarisations of electromagnetic radiation, comprising;

  • a first housing for housing;

    at least one radiating element each having a vertical polarisation feed point and a horizontal polarisation feed point,a vertical feeder circuit for coupling a radio frequency modulated electromagnetic signal to the vertical polarisation feed point of the or each radiating element, anda horizontal feeder circuit for coupling a radio frequency modulated electromagnetic signal to the horizontal polarisation feed point of the or each radiating element,a second housing for housing;

    a terminating resistive load, anda connection to the modulated electromagnetic signal, anda switch mechanism comprising a mechanically selectable electrical connection between the first housing and the second housing for selectively coupling the electromagnetic signal to one of the horizontal feeder circuit or the vertical feeder circuit and for selectively coupling the load to the other of the horizontal feeder circuit or the vertical feeder circuit.

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