Communications: radio wave antennas – Antennas – With spaced or external radio wave refractor
Patent
1989-01-10
1990-06-05
Hille, Rolf
Communications: radio wave antennas
Antennas
With spaced or external radio wave refractor
343785, H01Q 1906, H01Q 1324
Patent
active
049318080
ABSTRACT:
An embedded surface wave antenna is described of compact design capable of broadband performance both for impedance match and for radiation pattern characteristics comprising two spaced apart conductive planar elements, one element being a transition from a narrow portion to a wider portion according to a continuous function, said one element having an upward inclination away from the other of said conductive planar elements and ending in a termination at the wider portion, a tapered lens material having a downward inclination from said termination toward said other of said conductive planar elements to define a sloping surface therebetween for launching and receiving electromagnetic waves. The subject surface wave antenna may be readily adapted into assemblies of radiating elements in a predetermined electrical and geometric configuration to provide an array rendering a preferred radiation pattern.
REFERENCES:
patent: 2822542 (1958-02-01), Butterfield
patent: 3099836 (1963-07-01), Carr
patent: 3868694 (1975-02-01), Meinke
patent: 4087822 (1978-05-01), Maybell et al.
patent: 4835543 (1989-05-01), Sequeira
Cronin Theresa A.
Lalezari Farzin
Munson Michael G.
Alberding Gilbert E.
Ball Corporation
Hille Rolf
Johnson Doris J.
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