S/M enhancer

Details S/M enhancer S/M enhancer

1993-02-25

1994-06-07

Lee, Benny

Wave transmission lines and networks

Automatically controlled systems

Limiting of amplitude

333 33, 333109, H03H 734

Patent

active

053193253

ABSTRACT:
To overcome conventional increase of insertion loss and conventional discrepancy of phase characteristic of an S/N enhancer provided for increasing S/N of an electro-magnetic wave to be converted into a magneto-static wave by utilizing saturation of magneto-static wave power propagating through a ferrite thin film, a novel operational principle is used, wherein a large variation of impedance of a strip line, provided for converting electro-magnetic waves into magneto-static waves in the vicinity of saturation of the magneto-static wave. The electro-magnetic wave reflected from the input terminal of the strip line is selectively derived as an output wave through a directional coupling device.
As a result, particularly for an electro-magnetic wave applied with wide-band FM modulation, S/N can be remarkably increased without any increase of insertion loss or any influence of phase characteristic discrepancy.

REFERENCES:
patent: 4283692 (1981-08-01), Adam
patent: 4392115 (1983-06-01), Vollvet et al.

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