NDLI: Characterization of Ceramic Dielectrics for Sub-GHz Applications in Nonlinear Transmission Lines

Content Provider	IEEE Xplore Digital Library
Author	Silva Neto, L.P. Rossi, J.O. Barroso, J.J. Silva, A.R.
Copyright Year	1973
Abstract	Low loss dielectric materials with high permittivity and nonlinear behavior are essential for use in capacitive nonlinear transmission lines (NLTLs) for RF generation. NLTLs have a great potential to generate soliton waves for high-power microwave applications in mobile defense platforms and satellite communications. In this paper, the dielectric properties of a piezoelectric capacitor based on lead-zirconate-titanate (PZT) was characterized in a broadband frequency range from 10 MHz to 1 GHz for use in NLTLs. Three commercial ceramic capacitors made of barium titanate (BaTiO₃) were also assessed for comparison with the PZT capacitor. The characterization of materials consisted of measuring the relative dielectric constant (real and imaginary parts) as function of the applied voltage and frequency to calculate the loss tangent of the material. The results showed that PZT material has a better performance for use in NLTLs than barium titanate because of its lower losses. As discussed here, however, the use of PZT and barium titanate-based materials in NLTLs are compromised by the self-resonant frequency of the capacitors because of the inherent parasitic inductance associated with the capacitor at high frequencies.
Sponsorship	IEEE Nuclear and Plasma Sciences Society
Starting Page	3274
Ending Page	3282
Page Count	9
File Size	2510040
File Format	PDF
ISSN	00933813
Volume Number	42
Issue Number	10
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Capacitors Resonant frequency Permittivity Capacitance Ceramics Dielectric losses solitons. Dielectric permittivity ferroelectric ceramics loss tangent microwave generation nonlinear transmission lines solitons
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics Condensed Matter Physics

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