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90 Degree Hybrid-Coupler Based Phase-Interpolation Phase-Shifter for Phase-Array Applications at W-Band and Beyond
In the proposed phase shifter, a 90 degree-hybrid performs I/Q phase splitting and phase interpolation to synthesize all four quadrant phases after amplitude weighting made by VGAs. In such way, by designing the weighting amplifiers with a matched impedance, the I/Q accuracy and thereby accuracy of phase interpolation is not sensitive to the amplifier...
Published: 1/4/2016   |   Inventor(s): Sadia Afroz, Kwang-Jin Koh
Category(s): Electrical, Engineering