Planar three-dimensional constrained lens for wide-angle scannin

Details Planar three-dimensional constrained lens for wide-angle scannin Planar three-dimensional constrained lens for wide-angle scannin

1986-05-02

1988-01-26

Sikes, William L.

Communications: radio wave antennas

Antennas

With spaced or external radio wave refractor

343700MS, 343753, H01Q 1906, H01Q 1310

Patent

active

047219661

ABSTRACT:
A planar microwave beamforming lens system achieves wide-angle scanning using a planar lens by using a design in two degrees of freedom. One degree of freedom is provided by varying lengths of transmission lines between aperture side elements and feed side elements as a function of radius. A second degree of freedom results from the distribution of feed side elements so that they are displaced radially from their corresponding aperture elements as a function of the radius of the planar lens. All aperture antenna elements are regularly distributed over the aperture side of the planar lens.

REFERENCES:
patent: 4131892 (1978-12-01), Munson et al.
patent: 4263598 (1981-04-01), Bellee et al.
patent: 4316194 (1982-02-01), De Santis et al.
patent: 4329689 (1982-05-01), Yee
patent: 4381509 (1983-04-01), Rotman et al.
Rotman, W., and Turner, R. F. (1963) Wide-Angle Microwave Lens for Line Source Applications, IEEE Trans., Antenna Propag., pp. 623-632.
D. H. Archer, "Lens-Fed Multiple Beam Arrays," Microwave Journal, Sep. 1984, pp. 171-195.
J. B. J. Rao, "Multifocal Three-Dimensional Bootlace Lenses," IEEE Transactions on Antennas and Propagation, Nov. 1982, pp. 1050-1056.

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