| 摘要 |
A high speed switching apparatus comprises first and second parallel balanced lines each directed from an input line end to an output line end and and adapted to receive equal and opposite currents to provide balanced operation. Third and fourth parallel balanced lines are spaced apart one from the other and each directed from an input line end to an output line end and adapted to receive equal and opposite currents to provide balanced operation. A first switch is coupled between the output end of the first line and the input end of the third line, and operative in a first high impedance off state and a second low impedance on state. A second switch is coupled between the output end of the second line and the input end of the fourth line, and operative in a first high impedance off state and a second low impedance on state. A switch driver is coupled to the first and second switches to operate the switches in the off or on state according to a control signal applied to the driver, to control propagation of signals on the first and second lines to the third and fourth lines.
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