Stripline load for airborne antenna system

Details Stripline load for airborne antenna system Stripline load for airborne antenna system

1972-04-04

1976-08-10

Hubler,, Malcolm

Wave transmission lines and networks

Dissipating terminations for long lines

Fluid-cooling

333 10, 333 11, 333 21R, 333 84M, H01P 126

Patent

active

039744620

ABSTRACT:
An improved directional antenna for use in an airborne vehicle is shown. The contemplated antenna includes a planar phased array of antenna elements mechanically rotatable about an axis of rotation, the plane of such array making an acute angle with such axis. The beam from such array may be electronically scanned, within wide limits, regardless of the orientation of the phased array. Also shown is an improved constrained centerfeed for the antenna elements in each row thereof in such array, the disclosed feed incorporating a double ladder arrangement, including wideband couplers, to permit the extensive use of stripline and at the same time to allow practically independent adjustment of azimuth and elevation difference patterns when the phased array is used as an element in a monopulse system. Also shown is an improved load for the stripline used in the disclosed antenna, such load being mounted on one ground plane to permit air cooling, with the coupling between the stripline and such load being determined by the orientation, with respect to the center conductor of the stripline, of a coupling slot through the ground plane.

REFERENCES:
patent: 2644928 (1953-07-01), Norton
patent: 3509495 (1970-04-01), Morton

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