Complementary split-ring resonator-based deflecting structure

Abstract

We describe full wave simulation results for a compact, novel deflecting structure operating around 2 GHz. The structure consists of a pair of elliptical complementary split-ring resonators (CSRRs) etched into a copper rectangular waveguide along with outer rectangular cavities to maintain the vacuum. Our design utilizes the strong electric fields created by the resonators to impart a transverse deflection to particle bunches traveling through the structure. Simulations suggest a total deflecting voltage of 0.132 MV and a transverse accelerating gradient of 1.55 MV/m for only 4.42 kW of applied rf power. We also present, as a design aid, a simplified, approximate analysis of the operating frequency.