Reduced beamwidth antenna

Details Reduced beamwidth antenna Reduced beamwidth antenna

2007-09-26

2009-08-04

Chen, Shih-Chao (Department: 2821)

Communications: radio wave antennas

Antennas

With spaced or external radio wave refractor

C343S909000

Reexamination Certificate

active

07570221

ABSTRACT:
Systems and methods for reducing the beamwidth of an antenna system are provided. An evanescent field generator generates an evanescent field representing a far field radio frequency (RF) signal received at the antenna system. A negative refractive index lens assembly focuses the evanescent field onto a focal plane. An RF detector assembly located in the focal plane detects the amplified evanescent field.

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