Design and simulation of the stripline kicker for the BEPCⅡ transverse feedback system

Active feedback systems are required to suppress CBI in BEPCⅡ. The BEPCⅡ transverse feedback system mainly includes three parts:the signal detection, the signal process and the kicker as the key part. The magnitude of feedback power is a very important parameter that is closely related to the design of the kicker. The stripline electrodes are used as the kicker in BEPCⅡ. In this paper the numeric modelling by means of the Hewlett&Packard high frequency structure simulation code and the simulation result of the kicker is given. The simulation result is almost same as the result coming from the formula and the reflection coefficient is less than 7 percent in the bandwidth of DC250MHz, the 1 300Ω shunt impedance can be achieved in the frequency of 250MHz, so 123 watts feedback power shoul