Abstract: Sparse arrays designed based on fourth-order difference co-array (DCA) can achieve significantly higher uniform degrees-of-freedom (uDOFs). However, most existing fourth-order sparse arrays ...

Japan is the one place in the world that has felt, and personally mourned, the staggering damage of nuclear warfare. The ...

Abstract: We present a novel continuous-aperture orbital angular momentum (CAP-OAM) communication system, which can be regarded as an asymptotic generalization of existing (discrete) uniform circular ...