Microwave phase scan antenna array

Details Microwave phase scan antenna array Microwave phase scan antenna array

H - Electricity

01

Q

351/56

H01Q 21/00 (2006.01) H01P 1/19 (2006.01) H01Q 3/36 (2006.01) H01Q 3/44 (2006.01) H01Q 21/06 (2006.01)

Patent

CA 1325675

ABSTRACT OF THE DISCLOSURE A microstrip phase scan antenna array is provided having a columnar array of microstrip radiating patches mounted on a dielectric substrate. Each column of the array is fed by a separate variable, reciprocal ferrite rod phase shifter which is mounted on the substrate and is coupled to the column which it controls and to a source of millimetre wave energy by microstrip to dielectric waveguide transitions. Each of the phase shifters is controlled by a helical biasing coil surrounding the ferrite rod. All of the biasing coils are serially interconnected by a single scanning control drive wire and the numbers of turns of the coils are related to each other by an arithmetic progression in which the number of turns of a particular biasing coil differs from the number of turns of the adjacent biasing coil in the sequence of biasing coils controlling the array by a constant amount.

602983

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