A ferroelectric fast reactive tuner design for 1.3 GHz TESLA cavities is presented, with CST simulation showing a 50 Hz tuning range and roughly 12x lower forward RF power.
Detailed Design and Optimization of Ferro-Electric Tuners
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abstract
A detailed, step-by-step design methodology of a Ferroelectric Fast Reactive Tuner (FE-FRT) capable of modulating Mega VAR reactive powers on a sub-microsecond time scale is given. Closed expressions of values for all the components of the tuner are detailed, and tuner performance optimization is addressed, resulting in a Figure of Merit measure of FE-FRT tuner performance and use case applicability over a wide range of RF frequencies and reactive power levels. This enables addressing feasibility and rapid assessment of design parameters given an FE-FRT tuning scenario defined by required tuning range, cavity operating frequency a cavity stored energy.
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Design of a Fast Reactive Tuner for 1.3 GHz TESLA cavities at MESA
A ferroelectric fast reactive tuner design for 1.3 GHz TESLA cavities is presented, with CST simulation showing a 50 Hz tuning range and roughly 12x lower forward RF power.