title: Design of high power radio frequency radial combiner for proton accelerator.
abstract: A simplified design method has been proposed for systematic design of novel radio frequency (rf) power combiner and divider, incorporating radial slab-line structure, without using isolation resistor and external tuning mechanism. Due to low insertion loss, high power capability, and rigid mechanical configuration, this structure is advantageous for modern solid state rf power source used for feeding rf energy to superconducting accelerating structures. Analysis, based on equivalent circuit and radial transmission line approximation, provides simple design formula for calculating combiner parameters. Based on this method, novel 8-way and 16-way power combiners, with power handling capability of 4 kW, have been designed, as part of high power solid state rf amplifier development. Detailed experiments showed good performance in accordance with theory.
authors.affiliation: Raja Ramanna Centre for Advanced Technology, Indore 452 013, India. ajain@rrcat.ernet.in
authors.forename: Akhilesh
authors.initials: A
authors.lastname: Jain
authors.forename: Deepak Kumar
authors.initials: DK
authors.lastname: Sharma
authors.forename: Alok Kumar
authors.initials: AK
authors.lastname: Gupta
authors.forename: P R
authors.initials: PR
authors.lastname: Hannurkar