×

Tunable impedance surface

  • US 6,538,621 B1
  • Filed: 03/29/2000
  • Issued: 03/25/2003
  • Est. Priority Date: 03/29/2000
  • Status: Active Grant
First Claim
Patent Images

1. A tuneable impedance surface for reflecting a radio frequency beam, the tunable surface comprising:

  • (a) a ground plane;

    (b) a plurality of elements disposed in an array a distance from the ground plane, the distance being less than a wavelength of the radio frequency beam; and

    (b) a capacitor arrangement for controllably varying capacitance between at least selected ones of adjacent elements in said array.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×