Patent ID: 6281746
Filing Date: 2001-08-28
Classification: H03B

Abstract:
A microwave parametric amplifier, comprising:a housing having an interior cavity,a circulator having an input signal port for receiving an input signal, an output signal port and a bidirectional port which is coupled to the interior cavity of said housing,a pump signal port coupled to the interior cavity of said housing for receiving a pump signal,a non-linear medium within said interior cavity for receiving said pump signal and thereby liberating carriers therein,a frequency selective barrier within said interior cavity, said frequency selective barrier substantially reflective to said pump signal and substantially transparent to said input signal, wherein said frequency selective barrier defines a pump signal resonant cavity within said housing interior cavity, andwherein an output signal is produced within said interior cavity as a result of interaction of said input signal and said carriers, said output signal is conveyed through said bidirectional port to said output port of said circulator, and wherein said output signal is at the frequency of said input signal and has a greater amplitude than said input signal.