Cascaded bandpass vth-law devices

The effect of the n-cascaded bandpass vth-law devices on the sum of a strong signal and a weak signal is analysed. It is shown that if any of the nonlinear devices is a hard-limiter, the n-cascaded nonlinearities have the same effect as that of a single hard-limiter. If two such cascaded n vth-law devices (differing in at least one vth-value) or two complex bandpass nonlinearities are connected in parallel, we obtain the generalised form of a `power-division¿ multiplex system which utilises a feed-forward across a limiter technique.