Title: Loop coupler commutating feed for scanning a circular array antenna

Abstract: A multiple port loop-coupler, commutating feed for a circular or cylindrical array. A rotor having a plurality of elongated coupling loops circumferentially spaced about an arc of its perimeter is fed from a strip line configuration excited at the driven central axis of the rotor. A plurality of elongated stater loops within essentially the same radial dimensions but extending throughout the full 360 degrees of the circular perimeter of the device continuously couples a changing fraction of the stater loops to the rotor as the latter is rotated. An output port is provided connected to each stater loop, and these output ports may then be discreetly connected to corresponding elements of a circular array or columns of elements of a cylindrical array.

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Inventors: Charlton, Gregory G. (Reseda, CA, US)

Application Number: 077850
Filing Date: 1979-09-21
Publication_date: 1980-10-21
Assignee: International Telephone and Telegraph Corporation (New York, NY)
Primary Class(es): 342/368 333/107, 342/374
Other Classes:
US Patent Ref:

2477635	Aug, 1949	Marchand	333/107.
3066291	Nov, 1962	Alford	343/876.

Other Refs:
Primary Examiner: Lieberman, Eli
Assistant Examiner:
Attorney: O'Neil; William T.