A compact modulator for RF source development

Author

Ivers, J.D. ; Kerslick, G.S. ; Nation, J.A. ; Schachter, L.

Author_Institution

Sch. of Electr. Eng., Cornell Univ., Ithaca, NY, USA

fYear

1993

fDate

17-20 May 1993

Firstpage

1312

Abstract

A compact, low repetition rate, pulse-modulator is being developed for use as a driver in high power microwave experiments. A single stage of the modulator consists of a 16 Ω pulse forming network in a Blumlein configuration driving a 3:1 coaxial ferrite loaded pulse transformer. The output of the transformer is a 100 kV, 150 ns (FWHM) pulse, with a 70 ns flat top (±1.0%), into a matched load. A second device, driven with a different pulse line, gives a 130 ns flat top pulse. To obtain the flat top requires tuning with a reactive circuit in the transformer primary. We plan to stack transformer modules in series to obtain a 500 kV, 1 kA modulator. A second stage is currently being built and various stacking techniques are being investigated

Keywords

ferrite devices; modulators; power transformers; pulse modulation; pulse transformers; 1 kA; 100 kV; 130 ns; 150 ns; 16 ohm; 500 kV; 70 ns; Blumlein configuration; RF source; coaxial ferrite loaded pulse transformer; compact pulse-modulator; pulse forming network; stacking; Capacitance; Coaxial cables; Coaxial components; Diodes; Ferrites; Laboratories; Power cables; Pulse modulation; Pulse transformers; Radio frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1993., Proceedings of the 1993

Conference_Location

Washington, DC

Print_ISBN

0-7803-1203-1

Type

conf

DOI

10.1109/PAC.1993.308611

Filename

308611