Motorola Corporation

Henry L Pfitzenmayer

Robert S Kaltenecker

Frederick C Wernett

A novel circuit and method for providing amplitude and phase compensation for a balun in order to provide first and second voltage signals that are balanced has been provided. The compensation is achieved by adding an amplitude and phase compensation circuit such as a transmission line (14) or inductive (20) and capacitive (22) lumped elements in series with one of the ports of the balun on the balanced side. The amplitude and phase compensation circuit includes a characteristic impedance parameter (Zo) and an electrical length parameter (Eo) that are optimized such that the amplitude difference between first and second voltage signals is minimized, while the magnitude of the phase difference between first and second voltage signals is maximized.

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Phoenix, AZ, United States of America

Henry L Pfitzenmayer