EHF omnidirectional antenna

Details EHF omnidirectional antenna EHF omnidirectional antenna

1991-04-25

1992-06-09

Wimer, Michael C.

Communications: radio wave antennas

Antennas

With spaced or external radio wave refractor

343911R, H01Q 19060, H01Q 15080

Patent

active

051211297

ABSTRACT:
The EHF omnidirectional antenna system (10) includes a shaped lens (12) that is illuminated by a corrugated horn (14). The lens is disposed in the far-field of the horn and has two shaped surfaces (20 and 30) which together disperse the beam from the horn, such that a nearly uniform coverage over hemispherical coverage area is achieved at a frequency of approximately 44 GHz. The method of making the lens utilizes a surface shaping analysis to develop the shaped surfaces of the lens. A surface matching layer (44) is applied to all surfaces of the lens to reduce surface reflection.

REFERENCES:
patent: 4047180 (1977-09-01), Kuo et al.
patent: 4188632 (1980-02-01), Knox
patent: 4333082 (1982-06-01), Susman
patent: 4641144 (1987-02-01), Prickett
patent: 4872019 (1989-10-01), Chow et al.

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