Long pulse generator based on thin spiral line

A spiral pulse forming line was presented, which consisted of inner cylinder and outer cylinder, and was densely wound by thin lines with multiple origins. Combining it with Tesla transformer, a compact long pulse generator was constructed, which had high energy efficiency, compact structure, and could work at repetitive rate. On the design principle of maximizing charging voltage, the impedance value of the forming line would be 12.6 times the slow wave coefficient, and high coupling coefficient 0.95 of Tesla transformer would be obtained when the aspect ratio of the line was greater than 3.1. On the design principle of maximizing stored energy, the impedance value of the line would be 7.5 times the slow wave coefficient, and high coupling coefficient 0.95 of Tesla transformer would be ob