Development and Analysis of PFN Based Compact Marx Generator Using Finite Integration Technique for an Antenna Load

Author

Tewari, Somesh Vinayak ; Umbarkar, Sachin B. ; Agarwal, Rohit ; Saroj, P.C. ; Sharma, Ashok ; Mittal, Kailash Chandra ; Mangalvedekar, H.A.

Author_Institution

Accel. & Pulse Power Div., Bhaba Atomic Res. Centre, Mumbai, India

Volume

41

Issue

10

fYear

2013

fDate

Oct. 2013

Firstpage

2684

Lastpage

2690

Abstract

This paper presents the design and development of a compact Marx generator based on pulse forming network (PFN) along with a peaking capacitor rated at 300 kV and 64 J. Proposed scheme consists of identical PFNs connected across the charging and grounding resistors according to the Marx generator scheme. Modular construction of the Marx generator is useful in altering the stage capacitance to obtain varying pulse rise time and wave shapes at the output. A peaking capacitor connected at the output of the Marx generator significantly improves the rise time from 25 to 5 ns suitable for driving an antenna load. The effect of peaking capacitor on the intensity of far-field radiation is simulated using finite integration technique for a distance of 15, 20, 30, 40, and 50 m and the results are presented and discussed.

Keywords

antennas; integration; power capacitors; pulse generators; pulsed power supplies; PFN; antenna load; compact Marx generator; distance 15 m; distance 20 m; distance 30 m; distance 40 m; distance 50 m; energy 64 J; finite integration technique; modular construction; peaking capacitor; pulse forming network; pulse rise time; stage capacitance; voltage 300 kV; wave shape; Capacitance; Capacitors; Generators; Inductance; Loaded antennas; Sparks; Antenna; Marx generator; electric field; peaking capacitor; pulse forming network (PFN);

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2013.2279483

Filename

6612675