Passive, frequency-steerable, microwave repeater system

Details Passive, frequency-steerable, microwave repeater system Passive, frequency-steerable, microwave repeater system

1983-03-17

1987-06-30

Tubbesing, T. H.

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

Determining direction

With frequency or phase steering

342 5, 342367, 343912, G01S 1302, H01Q 1518

Patent

active

046774408

ABSTRACT:
Microwave communication and radar systems that employ a blazed microwave reflection grating are disclosed in which the grating comprises an array of electrical conducting scattering elements having plane parallel surfaces that face in the same direction. The plane parallel faces are positioned in parallel equally-spaced planes to provide a generally stair-step, or Venetian-blind type structure. Microwave energy beamed onto the plane parallel surfaces of the array exits at a diffraction-mode angle within the reradiation pattern of the individual scattering elements of the array. Frequency steering of the exit beam in one plane of the array is provided by varying the frequency of the illuminating beam.

REFERENCES:
patent: 1906546 (1933-05-01), Darbord
patent: 2968033 (1961-01-01), Kreitzberg
patent: 3144606 (1964-08-01), Adams et al.
patent: 3427623 (1969-02-01), Yater
patent: 4079382 (1978-03-01), Henry
patent: 4342033 (1982-07-01), de Camargo
Hecht and Zajac, Optics, pp. 357-358, Addison-Wesley Publishing Company, Reading, Mass., 1979.
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Jenkins and White, Fundamentals of Optics, McGraw-Hill, 1957, pp. 344-347.
Mallory et al, IEEE Transactions on Microwave Theory and Techniques, Sep. 1963, pp. 433 and 434.
Henry et al, "A Low-Loss Diffraction Grating Frequency Multiplexer", IEEE Transactions on Microwave Theory and Techniques, vol. Mtt-26, No. 6, Jun. 1978, pp. 428-433.

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