WIDE ANGLE MICROWAVE SCANNING ANTENNA ARRAY WITH DISTORTION CORRECTION MEANS

A wide angle microwave scanning antenna array includes an assembly of two stationary, parallel, concentric, spaced cylindrical surfaces providing a path for microwaves. A rotating waveguide feeds microwave energy into one end of the assembly and a flat focusing lens at the output end of the assembly...

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Bibliographische Detailangaben
Hauptverfasser: FINCH L,US, LOGAN R,US, SILBIGER R,US
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A wide angle microwave scanning antenna array includes an assembly of two stationary, parallel, concentric, spaced cylindrical surfaces providing a path for microwaves. A rotating waveguide feeds microwave energy into one end of the assembly and a flat focusing lens at the output end of the assembly radiates the microwaves in a scanning plane and focuses the waves at a point moving in the plane. A helical mirror in the assembly reflects the microwaves from the input to the lens at the output. To correct for distortion and increase the angular range of distortion free scanning, a cylindrical corrector lens is located in the assembly between the input and the mirror.