Phased array antenna with couplers in spatial filter arrangement

Details Phased array antenna with couplers in spatial filter arrangement Phased array antenna with couplers in spatial filter arrangement

1986-12-19

1989-10-24

Tarcza, Thomas H.

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

Directive

Including a steerable array

342373, 455304, H01Q 322

Patent

active

048765481

ABSTRACT:
A lossless spatial filter having N input ports and N output ports and printed on a single substrate. The filer is used in combination with an antenna system which radiates wave energy signals into a selected angular region of space and into a desired radiation pattern. The aperture of the system includes a plurality of N antenna elements. The antenna elements are arranged along a predetermined path and each element is connected to only one output port of the spatial filter. A beam steering unit controls the direction of radiation. A signal generator supplies a power divider having N output signal ports each connected to a phase shifter controlled by the beam steering unit.

REFERENCES:
patent: 3255450 (1966-06-01), Butler
patent: 3345585 (1967-10-01), Hildebrand
patent: 3803625 (1974-04-01), Nemit
patent: 3938160 (1976-02-01), Mailloux et al.
patent: 4010474 (1977-03-01), Provencher
patent: 4143379 (1979-03-01), Wheeler
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patent: 4188633 (1980-02-01), Frazita
patent: 4231040 (1980-10-01), Walker
patent: 4321605 (1982-03-01), Lopez
patent: 4466131 (1984-08-01), Ghose et al.
patent: 4633259 (1986-12-01), Hrycak
patent: 4638317 (1987-01-01), Evans
patent: 4710281 (1973-01-01), Thomas

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