Abstract: A device and method for splitting received signal energy among plural receivers in which received signal energy is provided to a first receiver which uses a primary portion of the received signal energy and reflects a reflected portion of the received signal energy, and in which the reflected portion is directed to an additional receiver(s) for use. Low loss directional circulators Or couplers may be used to direct the signal. The loss of signal energy to the first and subsequent receiver(s) is significantly reduced.

Abstract: A low phase noise third order phase lock loop which can track and eliminate microphonic disturbances and phase hits. The PLL utilizes a third order loop filter which incorporates two integrators. These two integrators, when coupled with the integration which occurs at the voltage control input of the voltage controlled oscillator within the PLL yield an open loop transfer function with a --18 dB/octave rolloff over a band of frequencies which at least encompasses the spectral content of the microphonic or phase hit phase noise disturbance to be eliminated. The open loop gain of the phase lock loop must be set high enough such that the phase lock loop does not oscillate and such that the loop converges and locks. The integrators are implemented with operational amplifiers with RC feedback networks. The values of the components in the RC feedback networks set the frequencies of two zeroes in the transfer function.