@inproceedings{0c0e08c5ea7a4fa384a16bda5422bb8c,
title = "Radiation from SiC PCSS driven gyromagnetic nonlinear transmission line high power microwave source",
abstract = "An all solid-state high power microwave (HPM) source is constructed using a photoconductive semiconductor switch (PCSS) based HV pulse generator to drive a sulfur hexaflouride (SF6) insulated coaxial ferrimagnetic nonlinear transmission line (NLTL) which feeds a TEM horn antenna. The PCSS was fabricated from high purity semi-insulating (HPSI) 4H-SiC and is illuminated with 2 mJ from a frequency tripled Nd:YAG laser at 355 nm with a 7 ns FWHM. Fixed fiber optic delay lines are utilized to generate a burst of four optical pulses from a single solid-state laser source for rep-rate operation. The input to the NLTL is an adjustable pulse from 3 kV to 6 kV with sub-ns rise time and the resulting output of the NLTL is radiation in the L-band to S-band regime with RF power from 100-200 kW depending on charge voltage. A Rexolite{\textregistered} insulated zipper transition, in which the inner conductor of the coax is gradually exposed, is used at the output of the NLTL to transition from a coaxial structure to parallel plate structure in order to feed a free space TEM horn. The zipper transition and feed section of the TEM horn are potted using Sylgard{\textregistered} 184 silicone elastomer to prevent breakdown at the antenna feed and maintain a homogenous dielectric constant for the transition region. Radiated waveforms are presented for several charge voltages and bias conditions.",
keywords = "Ferrimagnetic, HPM, NLTL, Nonlinear Transmission Lines, PCSS, Pulsed Power",
author = "Reale, {David V.} and Daniel Mauch and Johnson, {Jared M.} and Neuber, {Andreas A.} and Dickens, {James C.} and Mankowski, {John J.}",
note = "Publisher Copyright: {\textcopyright} 2014 IEEE.; null ; Conference date: 01-06-2014 Through 05-06-2014",
year = "2015",
month = oct,
day = "1",
doi = "10.1109/IPMHVC.2014.7287223",
language = "English",
series = "Proceedings of the 2014 IEEE International Power Modulator and High Voltage Conference, IPMHVC 2014",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "123--125",
editor = "Garner, {Allen L.}",
booktitle = "Proceedings of the 2014 IEEE International Power Modulator and High Voltage Conference, IPMHVC 2014",
}