The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CONF AU - Yu, T.-C. AU - Chang, L.-H. AU - Chang, M.H. AU - Chen, L.J. AU - Chung, F.-T. AU - Lin, M.-C. AU - Lin, Y.-H. AU - Liu, Z.K. AU - Lo, C.H. AU - Tsai, M.H. AU - Wang, Ch. AU - Yang, T.-T. AU - Yeh, M.-S. ED - Petit-Jean-Genaz, Christine ED - Arduini, Gianluigi ED - Michel, Peter ED - Schaa, Volker RW TI - Heat Distribution Analysis of Planar Baluns for 1kW Solid-state Amplifiers and Power Combining for 1.8kW J2 - Proc. of IPAC2014, Dresden, Germany, June 15-20, 2014 C1 - Dresden, Germany T2 - International Particle Accelerator Conference T3 - 5 LA - english AB - Solid-state transmitter for booster and storage ring in synchrotron would be composed of hundreds of amplifier modules. The amplifier module is biased at class AB and constructed in push-pull operation. Recent trend of amplifier module design features higher power up to 800 Watts and equipped planar balun (balance-unbalance converter) for push-pull operation. In NSRRC, the exclusive round planar design has encounter high temperature situation at kW range. Therefore, further study on this thermal condition is carried out in this study. Four types of planar balun design and two laminate materials are used for heat analysis. The typical coaxial balun is also applied on actual amplifier design. The results bring the better design with proper laminate choice and leads to acceptable thermal distribution with 1kW output power at 500MHz. Besides, for a more compact module with higher output power, the combination of two chips on the same circuit reaching 1.8kW is also presented. PB - JACoW CP - Geneva, Switzerland SP - 2294 EP - 2296 KW - operation KW - impedance KW - storage-ring KW - booster KW - controls DA - 2014/07 PY - 2014 SN - 978-3-95450-132-8 DO - 10.18429/JACoW-IPAC2014-WEPME019 UR - http://jacow.org/ipac2014/papers/wepme019.pdf ER -