Wideband switching matrix network in matrix form

Details Wideband switching matrix network in matrix form Wideband switching matrix network in matrix form

H - Electricity

04

Q

328/187

H04Q 3/52 (2006.01) H03K 17/62 (2006.01)

Patent

CA 1228128

ABSTRACT OF THE DISCLOSURE A broadband switching network in matrix form composed of a plurality of rows and a plurality of columns, and including a plurality of crosspoint switching circuits each having an input and an output and each associated with a respective row and a respective column; a plurality of input circuits each associated with a respective row and connected to the input of each switching circuit associated with the respective row; and a plurality of output circuits each associated with a respective column and connected to the output of each switching circuit associated with the re- spective column. Each crosspoint switching circuit includes a transistor connected in common emitter configuration and control elements connected for applying to the emitter of the transistor a potential controlling the switching state of the crosspoint switching circuit and each input circuit and output circuit is a decoupling circuit. The network further includes a plurality of load resistors each asso- ciated with a respective column and each connected to that output circuit which is associated with the respective column, and a plurality of self-blocking stages each in- cluding a transistor connected in common base configuration and each connected in series between the output of at least one switching circuit and that load resistor which is associated with the same column as the at least one switching circuit. -1-

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