Frequency synthesis method and a synthesizer apparatus using...

Details Frequency synthesis method and a synthesizer apparatus using... Frequency synthesis method and a synthesizer apparatus using...

H - Electricity

03

B

331/10

H03B 19/00 (2006.01) H03B 21/04 (2006.01) H03D 7/16 (2006.01) H04L 27/20 (2006.01) H03B 27/00 (2006.01)

Patent

CA 1286002

ABSTRACT OF THE DISCLOSURE A synthesizer apparatus is provided allowing very high speed switching while keeping phase continuity. It includes a plurality of cells, each with four mixers, a sub- tractor and an adder for obtaining at the output two in quadrature signals, of jump frequency ? n Fr, n being an integer, from in quadrature signals of a basic frequency Fr. These signals are then multiplied in a terminal circuit with two in quadrature signals relative to a carrier frequency Fc then added so as to produce the signal transposed to the frequency Fc ? n Fr desired for use.

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