H - Electricity – 03 – K
Patent
H - Electricity
03
K
328/18, 333/96
H03K 23/00 (2006.01)
Patent
CA 1123488
ABSTRACT OF THE DISCLOSURE: The invention relates to a broad bandwidth frequency di- vider which converts a band of input frequencies into a band of output frequencies such that each output frequency is one half the corresponding input frequency. The frequency divider has a first rectangular waveguide which propagates the band of input frequen- cies and a second larger rectangular waveguide which propagates the band of output frequencies. The two waveguides are orthogo- nally disposed with respect to one another and are interconnected by a slot provided in a common wall. Two nonlinear capacitive reactances are mounted in the first waveguide, one on each side of the slot, forming a transverse resonator. When the two nonlinear reactances are pumped in phase at the input frequency, parametric subharmonic resonance can be excited transversely at one half the input frequency such that the nonlinear reactance voltages are 180 out of phase at the output frequency. A corresponding subharmonic voltage developed across the slot is coupled directly into the output waveguide. The symmetry of the arrangement isolates the input frequency from the output port whereas the low-frequency cutoff property of the first waveguide isolates the output frequen- cy from the input port. An arrangement is provided for biasing the nonlinear capacitive reactances.
325119
Com Dev Ltd.
Robic Robic & Associes/associates
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