Communications: radio wave antennas – Antennas – Wave guide type
Patent
1986-11-12
1989-08-29
Hille, Rolf
Communications: radio wave antennas
Antennas
Wave guide type
333137, 333239, H01Q 1300
Patent
active
048621862
ABSTRACT:
Close tolerance waveguide assemblies for use in antenna arrays is disclosed. In particular, the waveguide assemblies are configured along the zero electrical current lines in the antenna array. Such waveguides are particularly useful in antenna arrays for radar systems operating at the microwave and millimeter-wave frequencies. In the invention, antenna array assemblies, such as rectangular or ridged waveguide assemblies, are configured by combining plates which are formed into a plurality of equal length members protruding from and perpendicularly disposed to a structural member, wherein each such protruding member has two formed or unformed ends.
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patent: 3801939 (1974-04-01), Lamy et al.
patent: 4020875 (1977-05-01), Akiba
patent: 4623894 (1986-11-01), Lee et al.
Conference Proceedings of the 16th European Microwave Conference, 8-12 Sep. 1986, Dublin, Ireland, Microwave Exhibitions and Publishers Ltd, (Tunbridge Wells, Kent, GB), F. Rispoli et al.: "High Performance Beam Forming Network for Multi Contoured Beam Antennas", pp. 369-374.
Patent Abstracts of Japan, vol. 10, No. 268 (E-436) (2324), 12 Sep. 1986, and JP, A, 6192002 (Koden Electronics Co. Ltd.) 10 May 1986.
Soviet Inventions Illustrated, Derwent Publications Ltd. (London, GB), and SU, A, 176964 (I. A. Grigoryev) 1 Dec. 1965.
Alkov Leonard A.
Hille Rolf
Hughes Aircraft Company
Le Hoang-anh
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