Ultra-wide bandwidth dish antenna

Details Ultra-wide bandwidth dish antenna Ultra-wide bandwidth dish antenna

1997-06-16

1999-03-09

Font, Frank G.

Communications: radio wave antennas

Antennas

Antenna with parasitic reflector

343850, H01Q 1919

Patent

active

058806997

ABSTRACT:
An ultra-wide bandwidth dish antenna includes a plurality of transmission nes embedded in feed arms extending from an edge of a reflective dish, The first transmission line is for input and is connected in parallel to two receptive transmission lines having twice the characteristic impedance of the input transmission line, where one of the receptive transmission lines is inverted relative to the other The two receptive transmission lines are each bonded and embedded within separate feed arms of the antenna. The feed arms of the dish antenna converge to a point (apex) where the conductors of the embedded transmission lines are connected. The connection forces a signal on the exterior of the feed arms creating an electric and magnetic field enabling an electromagnetic wave to be propagated down the feed arms and launched into the reflective dish to be radiated outward.

REFERENCES:
patent: 4095230 (1978-06-01), Salmond et al.
patent: 4730195 (1988-03-01), Philllips et al.
patent: 5148130 (1992-09-01), Dietrich
patent: 5220340 (1993-06-01), Shafai
patent: 5296823 (1994-03-01), Dietrich
patent: 5379006 (1995-01-01), McCorkle

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