Passive Compensation Theory for Advanced Systems Circuits

In the increasingly sophisticated systems for space telecommand and communications, clearly phase and phase slope (time delay) are of crucial importance if there is not to be destruction or excessive distortion of the transmitted waveform through the system. Such advanced systems tend to outrun the state-of-the-art of the system components so that phase-compensation theory and techniques are necessary. A theory of passive phase compensation and a method of calculation of needed phase compensation in a given system are discussed. An analog computer is developed which quickly calculates the "desired phase slope" which, added to the given system, effectively "corrects" it. Digitalization of the method is indicated; a theory and method are worked out such that quick results can be obtained, even on a desk calculator. Finally, practical phase-compensation techniques are given, based on the theoretical considerations.