Abstract: An apparatus and associated method is disclosed for increasing the maximum input frequency of a frequency divider system by altering the division ratio in the frequency divider system. In an exemplary form, the apparatus includes an electrical mixer circuit to combine an internal and an external frequency input signals into a combination frequency signal and a frequency divider circuit to receive the combination frequency signal and to frequency divide the combination frequency signal by a predetermined number, a signal splitter and a directional coupler in operative to receive the divided frequency signal and to generate an output frequency signal and a feedback frequency signal wherein the feedback frequency signal is identical in frequency to the output frequency signal and becomes the internally inputted frequency signal for the mixer. In this way the maximum input frequency of the frequency divider system can be advantageously increased.

Abstract: An apparatus and associated method is disclosed for increasing the maximum input frequency of a frequency divider system by altering the division ratio in the frequency divider system. In an exemplary form, the apparatus includes an electrical mixer circuit to combine an internal and an external frequency input signals into a combination frequency signal and a frequency divider circuit to receive the combination frequency signal and to frequency divide the combination frequency signal by a predetermined number, a signal splitter and a directional coupler in operative to receive the divided frequency signal and to generate an output frequency signal and a feedback frequency signal wherein the feedback frequency signal is identical in frequency to the output frequency signal and becomes the internally inputted frequency signal for the mixer. In this way the maximum input frequency of the frequency divider system can be advantageously increased.