Fin-line horn antenna

Details Fin-line horn antenna Fin-line horn antenna

1988-01-25

1990-02-27

Sikes, William L.

Communications: radio wave antennas

Antennas

Wave guide type

343795, 343807, 333 21A, H01Q 1300

Patent

active

049050133

ABSTRACT:
A fin line circuit card containing a fin line slot feeds a dipole antenna ich extends a quarterwave outside the waveguide and provides an energy beam focal point at or near the open end of the waveguide. The dipole antenna thus maintains a wide and nearly constant beamwidth, low VSWR and a circular symmetric radiation pattern for use in electronic warfare direction finding and surveillance applications.

REFERENCES:
patent: 2946055 (1960-07-01), Faflick
patent: 3623112 (1971-11-01), Rupp
patent: 4001834 (1977-01-01), Smith
patent: 4063248 (1977-12-01), Debski et al.
patent: 4157516 (1979-06-01), Van De Grijp
patent: 4298878 (1981-11-01), Dupressoir et al.
patent: 4425549 (1984-01-01), Schwartz et al.
patent: 4500887 (1985-02-01), Nester
patent: 4502053 (1985-02-01), Dupressoir et al.
patent: 4573056 (1986-02-01), Dudome et al.
patent: 4673897 (1987-06-01), Chua et al.

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