Virtual Receiver Matrix for Future Multifunction Wireless Systems
In this paper, a concept of Virtual Receiver Matrix (VRM) is introduced and presented for future multifunction wireless systems. This topological architecture is made possible through the development of a two-dimensional (2D) array of spatially distributed receivers based on the grouping of receiver building blocks. This matrix scheme is set to significantly enhance the number of possible virtual receivers made of combinatory unit circuits, thus opening up an unprecedented platform to create and integrate multiple wireless operations altogether. In this scheme, each cell of VRM, called half-receiver, can demodulate either in-phase or quadrature component of a QAM signal, depending on the receiving illumination angle of a wireless signal. In addition to conventional receiving functions, the devised VRM can detect the Angle of Arrival (AoA) and the polarization of incident waves. In this work, the mathematical modeling and experimental results from a fabricated VRM prototype are presented for the proof-of-concept.