1. An apparatus for distributing a sinusoidal signal comprising: means for generating said sinusoidal signal with a first temporal phase .phi..sub.g ; means for receiving the signal with a specific second temporal phase .phi..sub.i, said receiving means being substantially energy lossless; and means for propagating the signal, said propagating means being substantially energy lossless, having a substantially energy lossless finite boundary, having a geometry independent of a wavelength of said sinusoidal signal, and coupled to said generating and receiving means to cause said sinusoidal signal to propagate through said propagating means to form a standing wave so that said specific second temporal phase .phi..sub.i =.phi..sub.g +.delta..sub.i -n.sub.i .times.180.degree. at said receiving means, where .delta..sub.i is a small, location-dependent phase offset, and n, is a location-dependent non-negative integer.