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Panel antenna with variable phase shifter

  • US 7,463,190 B2
  • Filed: 10/10/2007
  • Issued: 12/09/2008
  • Est. Priority Date: 10/13/2004
  • Status: Active Grant
First Claim
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1. A panel antenna comprising:

  • an array of radiating elements;

    a feed network connecting an input to said array of radiating elements; and

    a phase shifter assembly located in said feed network and configured to adjust the phasing of signals fed to said array of radiating elements, said phase shifter assembly comprising a moveable conductive component coupled to the input and capacitively coupled to a transmission line segment of the network between radiating elements, the conductive component or transmission line segment having a dielectric coating providing dielectric separation of the transmission line segment and the wiper conductive component;

    wherein the transmission line segment is a trace on a printed circuit board, the printed circuit board having an arcuate edge guide surface with an arc center proximate the coupling between the conductive component and the input; and

    further comprisinga clip coupled to the printed circuit board to bias the conductive component against the printed circuit board about the arcuate edge guide surface.

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