Abstract: A millimeter-wave CMOS active vector-sum phase shifter (VSPS) with a phase resolution of 5.625° using a two-stage transformer-based resistor and inductor (RL) polyphase filter (PPF) for ...
Abstract: With phase-sensitive optical time-domain reflectometry (Φ-OTDR), an optic fiber can be used as a distributed vibration sensor to perceive the external disturbance along the fiber through the ...
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