Flat radar antenna employing circular array of slotted waveguide

Details Flat radar antenna employing circular array of slotted waveguide Flat radar antenna employing circular array of slotted waveguide

1977-02-02

1978-10-17

Lieberman, Eli

Communications: radio wave antennas

Antennas

Slot type

343771, H01Q 1310

Patent

active

041212207

ABSTRACT:
A flat radar antenna comprises a generally circular array of juxtaposed radiators constituted by slotted waveguides, the array being divided into four quadrants each composed of a multiplicity of groups of radiators. The radiator groups of the entire array are connected to a high-frequency transceiver via parallel paths of identical electrical length, consituted in one embodiment by cascaded couplers of magic-T type, whereby the bandwidth of the antenna equals that of each group so as to facilitate frequency scanning.

REFERENCES:
patent: 2981948 (1961-04-01), Kurtz
patent: 3691563 (1972-09-01), Shelton
patent: 3711858 (1973-01-01), Reeder

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