Patent ID: 6496082
Filing Date: 2002-12-17
Classification: H01P

Abstract:
A switch matrix comprising:a plurality of input lines having a signal input end and a non-input signal end; a plurality of output lines having a signal output end and a non-output signal end; a signal of interest having a center frequency; a plurality of signal switches, each of the plurality of switches coupled to one input line and to one output line, wherein when a selected signal switch is activated, the signal of interest is connected between the input line coupled to the selected signal switch and the output line coupled to the selected switch; a plurality of first isolation switches, each corresponding to one signal switch, each of the plurality of first isolation switches coupled to the output line corresponding to the associated signal switch and further coupled to ground, each isolation switch being coupled a first predetermined electrical length from the associated signal switch, wherein when a first isolation switch is activated, the portion of the output line between the associated signal switch and the isolation switch forms a stub of the first predetermined electrical length; a plurality of second isolation switches, each corresponding to one signal switch, each of the second plurality of isolation switches coupled to the input line corresponding to the associated signal switch and further coupled to ground, each isolation switch being coupled a second predetermined electrical length from the associated signal switch, wherein when a second isolation switch is activated, the portion of the input line between the associated signal switch and the isolation switch forms a stub of the second predetermined electrical length.