Electronic scanning type array antenna device

Details Electronic scanning type array antenna device Electronic scanning type array antenna device

1990-04-04

1991-08-20

Issing, Gregory C.

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a steerable array

342368, 342372, H01Q 302, H01Q 322

Patent

active

050418351

ABSTRACT:
In an electronic scanning type array antenna device according to the present invention, the circuit is constituted to be able to select a case in which any one antenna unit out of a plurality of electronic scanning type array antenna units is operated to form a radiation pattern, or a case in which any two or more, including all, antenna units out of the plurality of electronic scanning type array antenna units are operated to form a radiation pattern; thereby a radio beam can be scanned in a desired direction in a wide range with a smaller number of antenna elements and phase shifters in comparison with that of a conventional device.

REFERENCES:
patent: 3737899 (1973-06-01), Georgopoulos
patent: 4667201 (1987-05-01), Itoh
"Electronic Beam Steering Leads the Way", Communication Systems Worldwide, Sep. 1987, pp. 39, 41 and 43-44.
"Printed Crossed Slot Phased Array Antenna System for Mobile Satellite Communication", Chung et al., pp. 204-207.

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