Communications: directive radio wave systems and devices (e.g. – Directive – Including a steerable array
Patent
1989-08-17
1991-02-19
Blum, Theodore M.
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a steerable array
H01Q 322, H01Q 324, H01Q 326
Patent
active
049948148
ABSTRACT:
A phase shift data transfer system for phased array antenna apparatuses having a plurality of antenna elements arranged in rows and columns in an X-Y plane. A phase shifter is connected to each of the antenna elements. In order to form a beam radiating in a desired direction, an amount of phase shift is set in each phase shifter as the sum of a first component and a second component specified by an x coordinate and a y coordinate representative of the location of the antenna element to which the phase shifter is connected. A computing means computes a first component for every x coordinate and a second component for every y coordinate. The first component thus computed is transferred to the phase shifters corresponding to the x coordinate specifying the first component. The second component thus computed is transferred to the phase shifters corresponding to the y coordinate specifying the second component. Each phase shifter adds the first and second components thus transferred and sets the sum in the phase shifter.
Aoki Toshihiko
Hishinuma Susumu
Orime Nobutake
Blum Theodore M.
Mitsubishi Denki & Kabushiki Kaisha
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