Communications: radio wave antennas – Antennas – Slot type
Patent
1985-03-05
1989-04-04
Sikes, William L.
Communications: radio wave antennas
Antennas
Slot type
343770, H01Q 1312
Patent
active
048190039
ABSTRACT:
The present invention relates to telecommunication technology and broadcasting antenna technology. The power-feeding portion and the wave-guiding space, and the power-feeding wave-guiding space and the power-radiating wave-guiding space are matched for the effective radiation of the fed power. A conical matching body is disposed within the wave-guiding space with the apex thereof directed toward a power-feeding opening; the junction of the power-feeding wave-guiding space and the power-radiating wave-guiding space is formed in a sectional shape of a semicircle, a hemihedral polygon or a desired curvilinear shape; the power-feeding wave-guiding space the power-radiating wave-guiding space are matched in impedance; or a matching body is provided at the junction of the power-feeding wave-guiding space and the power-radiating wave-guiding space. A delaying means, such as a corrugated plate, is provided on the power-radiating surface or on a wall disposed opposite to the power-radiating surface, to radiate the power of the same phase uniformly with the reduced side lobe.
REFERENCES:
patent: 2659003 (1953-11-01), Dorne et al.
patent: 2921309 (1960-01-01), Elliott
patent: 2929064 (1960-03-01), Kelly
patent: 3235869 (1966-02-01), Van Atta et al.
patent: 4536767 (1985-08-01), Rembold et al.
patent: 4581614 (1986-04-01), La Course
Ando Makoto
Arimura Kunitaka
Goto Naohisa
Ito Yoshiharu
Shirai Tatsuya
Burns Robert E.
Lobato Emmanuel J.
Sikes William L.
Wimer Michael C.
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