The Active Bridge
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چکیده
The schematic of the active bridge is shown in Appendix A. A photo of an assembled bridge is shown in Appendix B. The bridge contains two op amps. The input is buffered by the first op amp and sent to an output connector for the DUT. The reflection from the DUT returns to that connector where it is amplified by the second op amp. The DUT port presents a nice 50-ohm impedance to the DUT, which as we will see is an important feature
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