Antenna with stepped ground plane

Details Antenna with stepped ground plane Antenna with stepped ground plane

1997-09-19

2000-01-11

Vu, David H.

Communications: radio wave antennas

Antennas

With grounding structure

343848, 343829, 343700MS, H01Q 148

Patent

active

06014114&

ABSTRACT:
An antenna structure has a radiating element and a ground plane. The ground plane has a central region relatively closely spaced apart from the radiating element and a peripheral region extending away from the central region. The peripheral region comprises at least one conductive layer that extends radially beyond the radiating element and provides a sheet resistivity higher than that of the radiating element. Though physically small, the ground plane simulates an infinite ground plane, and the antenna structure reduces multipath signals caused by reflection from the earth.

REFERENCES:
patent: 4887089 (1989-12-01), Shibata et al.
patent: 5121127 (1992-06-01), Toriyama
patent: 5124733 (1992-06-01), Haneishi
patent: 5170175 (1992-12-01), Kobus et al.
patent: 5694136 (1997-12-01), Westfall

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