Planar antenna with lens for controlling beam widths from two po

Details Planar antenna with lens for controlling beam widths from two po Planar antenna with lens for controlling beam widths from two po

1990-02-05

1992-11-10

Wimer, Michael C.

Communications: radio wave antennas

Antennas

With spaced or external radio wave refractor

343895, H01Q 136, H01Q 1906

Patent

active

051628066

ABSTRACT:
A low cost, broadband, broadbeam antenna. The radiating elements of the antenna are two spiral conductors mounted over a cavity. Inside the cavity, strips of RF absorber and a metal shim are located. Resistive damping at the ends of the sprial conductors is provided by discrete resistors. A dielectric lens covers the spiral conductors.

REFERENCES:
patent: 2547416 (1951-04-01), Skellett
patent: 3192531 (1965-06-01), Cox et al.
patent: 3686674 (1972-08-01), Clasby et al.
patent: 3745585 (1973-07-01), Barbano
patent: 4387379 (1983-06-01), Hardie
patent: 4573212 (1986-02-01), Lipsky
patent: 4608572 (1986-08-01), Blakney et al.
"Modern Antenna Design"; Thomas A. Milligan; Martin Marietta Denver Aerospace; McGraw-Hill Book Co.; pp. 372-383.

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