Testing Nonlinear Transmission Lines Made of Novel Composites

Solid state high power microwave sources eliminate some of the challenges associated with vacuum devices, including size, repetition rate, and required auxiliary systems. Nonlinear transmission lines (NLTLs) minimize the auxiliary systems required, reduce the system size, and increase the repetition...

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Bibliographic Details
Main Authors: Fairbanks, Andrew J., Crawford, Travis D., Hernandez, Julio A., Tallman, Tyler N., Garner, Allen L.
Format: Conference Proceeding
Language:English
Subjects:
Electromagnetics
Permittivity
Power transmission lines
Strontium
Titanium compounds
Transmission line matrix methods
Vacuum systems
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Summary:Solid state high power microwave sources eliminate some of the challenges associated with vacuum devices, including size, repetition rate, and required auxiliary systems. Nonlinear transmission lines (NLTLs) minimize the auxiliary systems required, reduce the system size, and increase the repetition rate. NLTLs utilize the nonlinearity of materials' voltage-dependent permittivity, such as barium strontium titanate (BST), and/or current-dependent permeability, such as nickel zinc ferrite (NZF), to create an electromagnetic shockwave 1 . Because controlling inclusion volume fraction in a composite can tune electromagnetic properties 2 , we examine the feasibility of tuning NLTL performance by controlling the volume loading of BST and/or NZF in a single line. Other studies have shown that coating BST with NZF and dispersing the ceramic powder in a plastic matrix can increase the composite permittivity while decreasing the magnetic loss for use in high energy density capacitors 1 .
ISSN:2576-7208
DOI:10.1109/ICOPS37625.2020.9717935