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A compact 10 kW, 476 MHz solid state radio frequency amplifier for pre-buncher cavity of free electron laser injector linear accelerator

Journal Article · · Review of Scientific Instruments
DOI:https://doi.org/10.1063/1.4820558· OSTI ID:22224127
; ; ;  [1]
  1. Raja Rammana Centre for Advanced Technology (RRCAT), Indore 452013 (India)
A 10 kW, 476 MHz, 0.1% duty cycle solid state RF amplifier system for driving sub-harmonic, pre-buncher cavity of IR-FEL injector LINAC, has been developed at RRCAT. The 10 kW power is achieved by combining output of eight 1400 W amplifier modules using 8-way planar corporate combiner. The solid state amplifier modules have been developed using 50 V RF LDMOS transistors which although meant for push-pull operation are being used in single ended configuration with matching circuit developed on a thin (25 mils), high dielectric constant (9.7), low loss microwave laminate with an aim to have a compact structure. Ease of fabrication, modularity, small size, and low cost are the important features of this design which could be used as a template for low duty cycle medium to high pulsed power UHF amplifier system.
OSTI ID:
22224127
Journal Information:
Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 9 Vol. 84; ISSN 0034-6748; ISSN RSINAK
Country of Publication:
United States
Language:
English

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