A New Type of Fast Switching Dual-Mode Ferrite Phase Shifter
1987
This paper describes a new type of dual-mode phase shifter which uses a variable transverse magnetic field. The device retains the features of the conventional longitudinal field dual-mode phase shifter - low insertion loss, moderate amplitude modulation, moderate frequency bandwidth, simple physical geometry - which allow it to be considered for use in two-dimensional scanning phased-array antennas. However, the transverse magnetic field configuration yields a smaller shorted-turn damping time constant, which results in either reduced switching time or reduced switching energy when compared with the conventional longitudinal field dual-mode arrangement.
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