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Antenna switching arrangement

  • US 8,698,575 B2
  • Filed: 11/28/2012
  • Issued: 04/15/2014
  • Est. Priority Date: 08/10/2009
  • Status: Active Grant
First Claim
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1. An antenna switching arrangement, comprising:

  • an input port coupled via a fourth transmission line to a fourth junction of a quadrature arrangement of quadrature transmission lines also provided with a first, a second and a third junction;

    the first junction provided with a first switch operable to selectively couple the first junction to ground;

    the second junction provided with a second switch operable to selectively couple the second junction to ground;

    the third junction provided with a third switch operable to selectively couple the third junction to ground;

    the first junction coupled via a first transmission line to a first output port;

    the second junction coupled via a second transmission line to a second output port;

    a terminating junction coupled via a third transmission line to the third junction;

    a fourth switch operable to selectively couple the terminating junction to ground; and

    a resistor coupled between the terminating junction and ground;

    at least one of the first, second, third and fourth switches are inductors.

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