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An S-band high average power broadband MBK with peak power of 500kW, average power of 30kW and relative bandwidth of 10% is being developed in the Institute of Electronics, Chinese Academy of Sciences (IECAS). Two types of RF interaction system, cylindrical cavity and coaxial cavity are going to be used for getting required performance. The calculation results and relative technical problems for developing...
Two types (type-A and type-B) of the S-band high-power broadband multi-beam klystrons are being developed in the Institute of Electronics, Chinese Academy of Sciences (IECAS). Type-A adopts a coil focusing system, and type-B has a Periodic Reverse Permanent Magnet (PRPM) focusing system. Five tubes have been manufactured and tested to date. Test results show that both MBKs have the RF peak output...
The research progress on C-band Broadband Multi-Beam Klystron at IECAS were presented in this paper. The relative bandwidth of 8.1% and 8.5% for C-band Broadband MBKs KC4137 and KC4148 were obtained on the power level of 100 kW and 160 kW with efficiency of 29% and 32.5%. The reason of higher parasitic output was analysis, and the method for surpressing it was discussed.
The Institute of Electronics, Chinese Academy of Sciences (IECAS) is developing a 4.6% instantaneous bandwidth 17 kW CW S-band klystron for use in communication system. The designs and results of measurement of the klystrons with two types of broadband output circuits respectively are presented and discussed in the paper.
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