A flush mounting, cavity-backed, dual orthogonal slot antenna for aircraft and space vehicles is described. Improved radiation pattern characteristics are obtained by making the spiral slot pattern elliptical in the aperture plane. A cavity and a flanged aperture plate are configured such that one slot pair is orthogonal with respect to another slot pair within the aperture plate. Coaxial split-tube baluns are used to drive the junctions between corresponding slot pairs. An optional cavity dielectric is provided and a drive coupling arrangement includes a four port comparator hybrid having sum and difference ports respectively, for alternate excitation to produce a single lobe or a double lobe pattern with null. Switching apparatus is provided to connect a common terminal to either of the ports.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Spiral Slotted Phased Antenna Array


    Contributors:
    H. Ellis (author)

    Publication date :

    1980


    Size :

    7 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Spiral slotted phased antenna array

    Ellis, H., Jr. | NTRS | 1982


    Compact Wideband E-Slotted E-Shaped Patch Antenna for Ku-Band Phased Array Applications

    Latha, Thokala / Ram, Gopi / Gande, Arun Kumar et al. | IEEE | 2024


    Phased-Antenna-Array Conical Scanning

    Lesh, J. R. | NTRS | 1984



    Retrodirective Phased Array Antenna for CubeSats

    Long, Justin / Thorsen, Denise / Kegege, Obadiah | IEEE | 2019