×

Antenna with stepped ground plane

  • US 6,014,114 A
  • Filed: 09/19/1997
  • Issued: 01/11/2000
  • Est. Priority Date: 09/19/1997
  • Status: Expired due to Term
First Claim
Patent Images

1. An antenna structure comprising:

  • a radiating element anda ground plane for the radiating element having a central region closely spaced apart from the radiating element and a peripheral region extending away from the central region, wherein;

    the peripheral region comprises a conductive layer that provides a sheet resistivity higher than that of the radiating element and extends radially beyond the radiating element and the ground plane has a sheet resistivity less than 3 ohms per square measured from dead center to the periphery of the radiating element and a sheet resistivity at least as high as that of free space measured at the periphery of the ground plane.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×