Synthesis of a pulse-forming reactance network to shape a delayed quasi-rectangular pulse

The paper describes synthesis of a reactance network shaping a delayed quasi-rectangular pulse when the input step voltage is applied. The derivative of the step response is approximated by delayed positive and delayed negative semi-periods of sine-squared function. Then the real and imaginary parts of Laplace transform of this quasi-rectangular pulse are expanded in infinite products. Using a finite number of terms in these products one can obtain the transfer function realizable as a reactance network loaded by resistor.