Communications: radio wave antennas – Antennas – Plural separate diverse type
Patent
1995-05-25
1996-09-17
Le, Hoanganh
Communications: radio wave antennas
Antennas
Plural separate diverse type
343770, 343768, 343776, 343778, H01Q 2100, H01Q 1310, H01Q 1300
Patent
active
055572910
ABSTRACT:
A multiband phased-array antenna interleaves tapered-element radiators with waveguide radiator to facilitate the simultaneous radiation of antenna beams across a bandwidth in excess of two octaves. The launch ends of the waveguide radiators collectively define a ground plane. The tapered-element radiators have pairs of tapered wings which are extended past the ground plane by a distance which is selected to establish a predetermined tapered wing radiation impedance. The radiators of each type are spaced apart by a span which insures that they will not generate grating lobes at the highest frequency which they respectively radiate.
REFERENCES:
patent: 3623111 (1971-11-01), Boynes et al.
patent: 4573056 (1986-02-01), Dudome et al.
patent: 4623894 (1986-11-01), Lee et al.
patent: 4905013 (1990-02-01), Reindel
patent: 5087922 (1992-02-01), Tang et al.
Lee, J. J. and Livington, S. I., "Wideband Bunny-Ear Radiating Element", IEEE AP-S International Symposium, Ann Arbor, Michigan, 1993, pp. 1604-1607.
Chu Ruey-Shi
Lee Kuan M.
Wang Allen T. S.
Denson-Low Wanda K.
Hughes Aircraft Company
Le Hoang-anh
Walder Jeannette M.
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