Limited scan array antenna systems with sharp cutoff of element

Details Limited scan array antenna systems with sharp cutoff of element Limited scan array antenna systems with sharp cutoff of element

1975-07-10

1977-08-09

Lieberman, Eli

Communications: radio wave antennas

Antennas

Plural antennas spaced a fractional or full wave length apart

343100SA, 343854, H01Q 326

Patent

active

040415015

ABSTRACT:
Disclosed are array antenna systems wherein the effective element pattern is modified by means of coupling circuits to closely conform to the ideal element pattern required for radiating the antenna beam within a selected angular region of space. Use of the coupling circuits in the embodiment of a scanning beam antenna significantly reduces the number of phase shifters required as compared to prior art array antennas.

REFERENCES:
patent: 2268844 (1942-01-01), Polkinghorn
patent: 3803625 (1974-04-01), Nemit
patent: 3964066 (1976-06-01), Nemit

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