Patent ID: 8018326
Filing Date: 2011-09-13
Classification: H03K

Abstract:
1. A matrix switch comprising: a plurality of input-terminals; a plurality of output-terminals; a plurality of connector switch elements having first and second terminals connecting said plurality of input-terminals with said plurality of output-terminals, each connector switch element having a third terminal configured as a connector control terminal for turning that connector switch element on and off; a plurality of input-terminal shunts associated with said plurality of input-terminals, each input-terminal shunt comprising a terminal configured as an input-terminal shunt control terminal for turning that input-terminal shunt on and off, wherein each of said plurality of input-terminals is connected to at least one of said plurality of input-terminal shunts, and the connected at least one input-terminal shunt selectively connects an associated input-terminal to a fixed input impedance load; and a plurality of output-terminal shunts associated with said plurality of output-terminals, each output-terminal shunt comprising a terminal configured as an output-terminal shunt control terminal for turning that output-terminal shunt on and off, wherein each of said plurality of output-terminals is connected to at least one of said plurality of output-terminal shunts and the output-terminal shunt selectively terminates an associated output-terminal in a fixed output impedance, wherein a number of said plurality of connector switch elements is equal to a number of combinations of said plurality of input-terminals and said plurality of output-terminals, and said plurality of connector switch elements are respectively provided on connection paths between said plurality of input-terminals and said plurality of output-terminals, wherein a number of said plurality of input-terminal shunts is equal to a number of combinations of said plurality of input-terminals and said plurality of output-terminals, and said plurality of input-terminal shunts are respectively connected to paths between said plurality of input-terminals and said plurality of connector switch elements, and wherein a number of said plurality of output-terminal shunts is equal to a number of said plurality of output-terminals, and said plurality of output-terminal shunts are respectively connected to said plurality of output-terminals.