S. G. TANTAWI (SLAC)
Several pulse compression systems have been proposed for future linear colliders. Most of these systems require hundreds of kilometers of low-loss waveguide runs. To reduce the waveguide length and improve the efficiency of these systems, components for multi-moding, active switches and non-reciprocal elements are being developed. In the multi-moded systems a waveguide is utilized several times by sending different signals over different modes. The multi-moded components needed for these systems have to be able to handle hundreds of megawatts of rf power at the X-band frequency and above. Consequently, most of these components are overmoded. We present the development of multi-moded components required for such systems. We also present the development efforts towards overmoded active component such as switches and overmoded non-reciprocal components such as circulators and isolators.
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