| Paper |
Title |
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| TUPKF020 |
Numerical Investigation on the ELETTRA 500 MHz Power Coupler
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1006 |
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- C. Pasotti, P. Craievich, A. Fabris, G. Penco, M. Svandrlik
ELETTRA, Basovizza, Trieste
- B. B. Baricevic
DEEI, Trieste
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Due to the high input power required to feed a resonant cavity, the RF input coupler is a critical component for the reliability of an RF system. The 500 MHz RF input coupler for the ELETTRA cavities was specified for 150 kW input power. It is important to investigate the performance limits of the coupler in view of increasing RF power requirements. The coupler's maximum peak field and dissipation versus the input power have been studied by means of the numerical simulator HFSS. Possible improvements to the existing design have been investigated. The optimization has to take into consideration the following requirements: convenient power transmission efficiency, RF matching, suitable coupling coefficient, negligible perturbation on cavity voltage, moderate operating temperature and stress.
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