The RF Drive System for The Stanford Two-Mile Linear Accelerator

The function of the rf drive system for the Stanford Two-Mile Linear Accelerator is to supply rf drive power at 2856 MHz to an array of 240 high power (24 mw ) klystron amplifiers and to assure that the correct phase relationship between each of these drive signals and the electron bunches in the accelerator is preserved over a tuning range of /spl plusmn/0.1 mhz. This paper gives an overall description of the system which fulfills these requirements, and discusses some of the microwave engineering and measurement problems encountered in its design.