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Abstract
An attempt has been made to achieve the changes in the selectivity performance of a highly frequency selective crystal network in the high frequency range using degenerative capacitive voltage feedback so that a minor change in bandwidth and center frequency can be obtained using the given technique. The capacitive feedback can be varied to achieve the changes in the center frequencies as well as the selective bandwidths. Usually this type of feedback is not popular because of its bad features of instability. In the present case the same feature with some modification has been utilized to ascertain the stability of the network.