The Importance Of Phase-Coherent RF Signal


As the number of higher-throughput applications grows, so does the need for wider bandwidth and network coverage in wireless systems. Given limited spectrum allocation, wireless communication engineers must look for ways to improve spectral efficiency and the signal-to-noise ratio (SNR) of systems. Multiple-input / multiple-output (MIMO) and beamforming can help RF designers achieve diversity, ... » read more

How To Design User Equipment Antenna Systems For 5G Wireless Networks


Next-generation cellular wireless communications will enable numerous innovative, cutting-edge technologies and products. The combination of millimeter-wave (mm-wave) and microwave bands accompanied by advanced spatial multiplexing techniques such as massive multiple-input multiple-output (MIMO) will form the backbone of a new cellular technology called 5G. The evolution to 5G promises low late... » read more

System Bits: Oct. 9


Sensing with light pulses In a development expected to be useful in applications including distance measurement, molecular fingerprinting and ultrafast sampling, EPFL researchers have found a way to implement an optical sensing system by using spatial multiplexing, a technique originally developed in optical-fiber communication, which produces three independent streams of ultrashort optical pu... » read more