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A real time closed-loop source power calibration technology is presented in this paper, which play an important role at input port of 0.3 to 0.4THz solid state active multiplier chain in order to improve the efficiency of backward stage multiplier.
To verify the feasibility of vector modulation technology in active phased array antenna (APAA), a Ka band 8×8 active phased array antenna composed of vector modulators was developed. Closed loop calibration method has been applied to achieve a good consistency among 8×8 channels by measuring and compensating the channel errors of the APAA system. The measured radiation patterns after calibration...
In this paper, we present vector modulation technology in millimeter-wave active phased array antenna (APPA) as a replacement of conventional digital phase shifter and digital attenuator. Both a 1×8 Ka-Band active phased sub-array antenna and an 8×8 Ka-Band active phased array antenna are developed to verify vector modulation technology in millimeter-wave active phased array antenna, respectively...
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