Abstract
The Recirculating Planar Crossed-Field Amplifier (RPCFA) has demonstrated amplification in excess of 10 dB of a ~30 kW RF signal, with 15% bandwidth. The RPCFA is the amplifying adaptation of the Recirculating Planar Magnetron (RPM) also developed at the University of Michigan. Ansys HFSS and the particle-in-cell code MAGIC were used to design a prototype. The prototype RPCFA was constructed and demonstrated transmission characteristics similar to those predicted by simulation. Sustained amplification for pulses 100's of nanoseconds in length have been observed with peak amplification as high as 16dB and greater than 1 MW of output power. The RPCFA is shown to be unsaturated at the 10's of kW RF drive at which it has been tested, suggesting higher input drive power may lead to even greater output power. The range of amplifiable frequencies implied by the transmission band is verified experimentally. The lower limit for RF drive power that can be amplified is found to be approximately 100 W. Sources of irreproducibility of microwave gain are being investigated. Injection of higher drive power up to 1 MW is planned.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
