Cellular reflectarray antenna and method of making same

Details Cellular reflectarray antenna and method of making same Cellular reflectarray antenna and method of making same

2011-08-02

2011-08-02

Nguyen, Hoang V (Department: 2821)

Communications: radio wave antennas

Antennas

With spaced or external radio wave refractor

C343S755000, C343S7000MS

Reexamination Certificate

active

07990327

ABSTRACT:
A method of manufacturing a cellular reflectarray antenna arranged in an m by n matrix of radiating elements for communication with a satellite includes steps of determining a delay φm,n for each of said m by n matrix of elements of said cellular reflectarray antenna using sub-steps of: determining the longitude and latitude of operation, determining elevation and azimuth angles of the reflectarray with respect to the satellite and converting theta0(θ0) and phi0(φ0), determining Δβm,n, the pointing vector correction, for a given inter-element spacing and wavelength, determining Δφm,n, the spherical wave front correction factor, for a given radius from the central element and/or from measured data from the feed horn; and, determining a delay φm,n for each of said m by n matrix of elements as a function of Δβm,nand Δφm,n.

REFERENCES:
patent: 4684952 (1987-08-01), Munson et al.
patent: 6081234 (2000-06-01), Huang et al.
patent: 6081235 (2000-06-01), Romanofsky et al.
patent: 6384787 (2002-05-01), Kim et al.
patent: 6441787 (2002-08-01), Richards et al.
patent: 6597327 (2003-07-01), Kanamaluru et al.

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