Patent ID: 7546100

Claim:
A system for generating amplitude matched, phase shifted signals, comprising: a filter arrangement including a plurality of input and output nodes, a first set of input nodes arranged to receive an input signal, a second set of input nodes coupled to electrical ground, each output node configured to provide an associated vector that is offset in phase from a vector associated with each other output node; a first peak detector arranged to receive a first pair of vectors from corresponding output nodes of the filter arrangement that are approximately 180° different in phase from each other, the first peak detector configured to generate a first peak signal; a second peak detector arranged to receive a second pair of vectors from corresponding output nodes of the filter arrangement that are approximately 180° different in phase from each other and different from the first pair of vectors, the second peak detector configured to generate a second peak signal; a comparator arranged to receive the first peak signal and the second peak signal and generate a feedback signal; an adjustable element associated with each output node, the adjustable element configured to receive the feedback signal and in response to the feedback signal substantially equalize an amplitude of each vector associated with each output node; an adder element arranged to receive the first pair of vectors and the second pair of vectors and configured to add respective vectors from the first and second pair of vectors each shifted in phase by approximately 90° from the other vector to generate corresponding adder outputs shifted in phase from the phase of the respective vectors from the first and second pair of vectors; and a scaler configured to receive the vectors associated with each output node and attenuate the amplitude of each of the same to generate a set of scaler outputs that are substantially equal in magnitude to the adder outputs.