General Instrument Corporation

Andre Basovich

Branislav A Petrovic

Maxim Ashkenasi

A regenerative frequency divider device including a plurality of multipliers, each of which has a first input port, a second input port and an output port; a first combiner coupled to the plurality of multipliers so as to receive an output signal from at least two of the multipliers; and a second combiner coupled to the plurality of multipliers so as to receive an output signal from at least two of multipliers. Further, a first output signal generated by the first combiner is coupled to the second input port of at least two of the multipliers; and a second output signal generated by the second combiner is coupled to the second input port of at least two of the multipliers such that a complex signal is fed back to the multipliers performing the down conversion process. The present invention divider CRD can achieve superior output noise floor of &#x2212;180 dBc/Hz at multi-GHz frequencies.

Broadband low noise complex regenerative frequency dividers

A frequency multiplier device comprises a first signal combiner having a first port for receiving a first input signal having a first frequency fand a second port for receiving a second input signal having a second frequency f, the first signal combiner configured to provide an output signal having either a sum of the first frequency and second frequency or a difference of the first frequency and second frequency; and a frequency divider having a dividing ratio N, the frequency divider configured to output a divided signal, wherein the output signal from the first signal combiner is coupled to the frequency divider, the divided signal from the frequency divider is coupled to the second port of the first signal combiner, and the output signal from the first signal combiner has a frequency of (N/(N&#xb1;1))&#xd7;f.

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Andre Basovich