This paper describes a very simple beam steering system which can steer the axial beam of any arbitrarily-large circular array in 2 dimensions, using 3 hybrids and 3 or 4 variable phase shifters, ...

The problem of obtaining focusing from a circular array together with 360-degree scanning by frequency variation is considered. It is shown that uniform variation of the line length between elements ...

We study the possibility of generating continuous-variable (CV) entanglement on an integrated chip through nonlinear optical waveguides coupled in a circular array. We show the simultaneous generation ...