1results about "Amplitude modulation details" patented technology

The application provides an on-chip radio frequency acoustic wave amplitude modulator and a communication device, and belongs to the field of signal processing.The on-chip radio frequency acoustic wave amplitude modulator comprises a signal input end, a first phase shifter, a second phase shifter and a phased transducer array.The first phase shifter and the second phase shifter are connected with the signal output end.The phased transducer array comprises a first phased array and a second phased array.The first phased array is connected with the first phase shifter, and the first phased array comprises a plurality of first array elements.The second phased array is connected with the second phase shifter, and the second phased array comprises a plurality of second array elements.The first array elements and the second array elements are arranged alternately, and the shortest distance between adjacent first array elements and second array elements is (N+1 / 4)λ.The modulator device can keep the miniaturization of the device and significantly improve the modulation efficiency of the wide-band radio frequency signal.