Dish antenna with impedance matched splash plate feed

Details Dish antenna with impedance matched splash plate feed Dish antenna with impedance matched splash plate feed

1976-05-03

1977-11-15

Lieberman, Eli

Communications: radio wave antennas

Antennas

With means for moving directive antenna for scanning,...

343781P, H01Q 1914

Patent

active

040588122

ABSTRACT:
A directional microwave antenna system comprising a concave reflector fed by a wave guide and splash plate assembly. Two rectangular apertures in the wave guide at the focus of the reflector admit energy to and from the splash plate. Impedance matching tabs protrude into the rectangular apertures to match the antenna system. Rectangular tabs provide improved VSWR, high side-lobe reduction with the reflector on-axis. Circular tabs provide improved VSWR and good side-lobe reduction with the reflector on or off axis.

REFERENCES:
patent: 2455286 (1948-11-01), Werner
patent: 2505424 (1950-04-01), Moseley
patent: 2632852 (1953-03-01), Sichak
patent: 2829366 (1958-04-01), Armstrong et al.
patent: 2989748 (1961-06-01), Doundoulakis et al.

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