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TY - CONF AU - Yu, T.-C. AU - Chang, F.Y. AU - Chang, L.-H. AU - Chang, M.H. AU - Chen, L.J. AU - Chung, F.-T. AU - Lin, M.-C. AU - Liu, Z.K. AU - Lo, C.H. AU - Tsai, C.L. AU - Wang, Ch. AU - Yeh, M.-S. ED - Schaa, Volker RW ED - Arduini, Gianluigi ED - Pranke, Juliana ED - Seidel, Mike ED - Lindroos, Mats TI - Quarter Wavelength Combiner for an 8.5kW Solid-State Amplifier and Conceptual Study of Hybrid Combiners J2 - Proc. of IPAC2017, Copenhagen, Denmark, 14â19 May, 2017 C1 - Copenhagen, Denmark T2 - International Particle Accelerator Conference T3 - 8 LA - english AB - Experimental results to combine ten 900 W solid-state amplifier modules based on typical quarter wavelength 10-way combiners are described for a total of 8.5 kW RF power output at 500 MHz. The power gain and phase distribution among the ten modules are measured and calculated to sense the combination efficiency. The combination efficiency of 100 modules differing in power gain and phase distribution is theoretically analysed. Groups of 5, 10, 25, 50 and 100 units are used in 4, 3, 2, and 1-stage power combination for total 100 units and the characteristics are calculated and investigated, including bandwidth, efficiency and even redundancy under various output VSWR levels. To simplify combining complexity and to eliminate the drawbacks of single stage combiners, a multi-way 2-stage coaxial to waveguide combiner is thus proposed as an expandable power combiner. PB - JACoW CP - Geneva, Switzerland SP - 4324 EP - 4327 KW - operation KW - insertion KW - distributed KW - synchrotron KW - status DA - 2017/05 PY - 2017 SN - 978-3-95450-182-3 DO - 10.18429/JACoW-IPAC2017-THPIK101 UR - http://jacow.org/ipac2017/papers/thpik101.pdf ER -