Frequency independent beam waveguide

Details Frequency independent beam waveguide Frequency independent beam waveguide

1986-11-28

1988-06-07

LaRoche, Eugene R.

350 9628, 350573, G02B 600

Patent

active

047492449

ABSTRACT:
A frequency independent beam waveguide comprises a row of equispaced identical axisymmetric phase setting means (1), which may be lenses or reflectors, or a combination of both, spaced a distance D apart from each other. The focal length of each phase setting means (1) is D/2. A launcher (2) spaced a distance D away from the first phase setting means (1A) in the row emits a beam of electromagnetic energy in the direction of said row. The phase and amplitude distribution in the cross-section (A) of the beam at the mouth of the launcher (2) is duplicated every other phase setting means (1) along the row (at locations B), independent of the frequency of the launched beam. As a result, the beam propagates along the row.

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Farnell, G. W., "Calculated Intensity and Phase Distribution in the Image Space of a Microwave Lens", Canadian Journal of Physics, vol. 35, 1957, pp. 777 et seq.
Chu, T. S., "Geometrical Representation of Gaussian Beam Propagation", The Bell System Technical Journal, Feb. 1966, pp. 287 et seq.

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