Linear array antenna with E-plane backlobe suppressor

Details Linear array antenna with E-plane backlobe suppressor Linear array antenna with E-plane backlobe suppressor

1989-04-18

1992-05-05

Wimer, Michael C.

Communications: radio wave antennas

Antennas

With electrical shield

343815, 343817, H01Q 1520, H01Q 21060, H01Q 21120

Patent

active

051112140

ABSTRACT:
An antenna comprising a linear array of active elements positioned in one or more rows. The back portion of the array is partially enveloped by a reflector. The reflector includes a backwall and at least one sidewall perpendicular to the backwall and extending forward of the backwall. In one embodiment of the invention, a single row of dipole radiators form the linear array. In a second embodiment of the invention, a row of folded monopoles mounted on an imaging ground plane form the linear array. The radiation pattern is directed forward of the reflector, the back radiation in the E-plane being suppressed by the sidewall of the reflector.

REFERENCES:
patent: 2455403 (1948-12-01), Brown
patent: 2573914 (1951-11-01), Landon
patent: 2691102 (1954-10-01), Masters
patent: 2808585 (1957-10-01), Andrew
patent: 3681770 (1972-08-01), Alford
patent: 4086591 (1978-04-01), Siwiak et al.
patent: 4097868 (1978-06-01), Borowick
patent: 4109254 (1978-08-01), Woloszczuk
patent: 4114163 (1978-09-01), Borowick
patent: 4446465 (1984-05-01), Donovan
Jordan, Edward C., et al, Electromagnetic Waves and Radiating Systems, pp. 326-329 and 352-357, 1968.
Kraus, John D., Antennas, pp. 545-549, 1988.

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