Preliminary study of a 4-stage transmission line transformer

The circuit diagram of a 4-stage voltage transmission line transformer(TLT) is analyzed. The circuit is simplified by means of equivalent circuit, and the expression of the output waveform is derived. The low voltage test of the 4-stage TLT is developed, the result of which indicates the voltage ratio is about 4 and rise time 48 ns. The result of simulation with PSPICE is in good agreement with the test. With the same parameters, theoretical calculation of output voltage amplitude is 3.98 which corresponded to measured value 4. However, there is some discrepancy between calculated value of TLT’s rise time (12 ns) and measured value (48 ns).