A vector modulation phase shifter for reconfigurable antenna array beamforming
A technology of vector modulation and antenna reconstruction, which is applied in the direction of antenna, phase shifting network, amplification control, etc., can solve the problems of I/Q error, large insertion loss, low accuracy of amplitude modulation unit, etc., and achieve offset and gain , small insertion loss, and the effect of suppressing common mode effects
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[0025] like figure 1 As shown, a vector modulation phase shifter for reconfigurable antenna array beamforming, including:
[0026] Input baluns for converting single-ended input signals to differential input signals;
[0027] Orthogonal signal generator, after the differential input signal passes through the quadrature signal generator, two orthogonal differential signals are generated: I signal and Q signal;
[0028] A variable gain amplifier, including an I variable gain amplifier for amplitude modulation and vector synthesis of the I signal, and a Q variable gain amplifier for amplitude modulation and vector synthesis of the Q signal;
[0029] Output balun, used to convert differential signal to single-ended signal output;
[0030] The input terminal A1 of the input balun is connected to the single-ended input signal, the ground terminal A2 of the input balun is grounded, the first differential output terminal A3 of the input balun is connected to the first differential i...
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