Characterization of dielectric properties of commercial ceramic capacitors for pulsed power applications

Neto, L. P. Silva; Rossi, J.O.; Silva, A. R.

doi:10.1109/cobep.2011.6085283

Cited by 11 publications

(6 citation statements)

References 12 publications

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“…Equating (4) to (5) one obtains Using (5) and (6) to determine the relative permittivity and dielectric losses gives [10] …”

Section: Methodsmentioning

confidence: 99%

“…In principle, NLTLs could provide submicrowave peak power of tens of megawatts at a pulse repetition rate (0.1-1 kHz) with dielectric requirements of high-voltage breakdown (BD, tens of kV/cm) strength and low loss tangent (<1%). As shown elsewhere [9], [10] the capacitors based on lead-zirconate-titanate (PZT) and BT dielectrics have dielectric BD strength of the order of 50 and 100 kV/cm, respectively. Nevertheless, the suppliers do not furnish the loss tangent of these components at sub-GHz frequencies.…”

Section: Introductionmentioning

confidence: 99%

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

Neto

Rossi

Barroso

et al. 2014

IEEE Trans. Plasma Sci.

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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 (BaTiO 3 ) 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 titanatebased 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.

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“…Equating (4) to (5) one obtains Using (5) and (6) to determine the relative permittivity and dielectric losses gives [10] …”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Neto

Rossi

Barroso

et al. 2014

IEEE Trans. Plasma Sci.

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“…The blocking capacitance must be at least 10 times greater than the capacitance of the DUT to not cause much interference on the measurement. As the signal amplitude of the capacitance meter is much smaller than the bias DC voltage, the meter reading gives strictly a measurement of the differential capacitance for the capacitor under test [2,3].…”

Section: Experimental Set-upmentioning

confidence: 99%

“…1. Circuit used for the C×V measurement with DC bias.For the HV BD tests, an LC oscillatory half sine wave circuit[2,3] was used as showed in Fig.2(a) & (b). This circuit is composed of two parts.…”

mentioning

confidence: 99%

Applications of PZT Dielectric Ceramics in High-Energy Storage Systems

Neto

Rossi

Silva

2012

MSF

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The barium and strontium titanate (BST) ceramics have been used with great success as excellent dielectrics in the construction of high voltage (HV) commercial ceramic capacitors with reduced dimensions because of their high dielectric constant. However, the main point of this paper is to investigate other type of ceramic known as PZT (Lead Zirconate Titanate) normally used as piezoelectric sensors in industrial applications. The idea herein is to use the PZT ceramics as HV dielectrics for applications in high-energy storage systems by de-poling their piezoelectric properties in order to avoid dielectric damage and losses at high frequencies. For this, de-poled PZT-4 ceramic samples (30 mm × 2 mm) were submitted to HV tests, in which their dielectric breakdown strength and dielectric constant variation with the applied voltage were assessed. These results obtained confirmed the use of PZT in applications that require reasonable dielectric constant stability (< 15 %) with voltage and HV dielectric breakdown (40 kV/cm) for compact high-energy storage devices.

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“…However, DC voltage biased is not applied to the capacitor measurement and it's not applicable to power capacitor measurement. paper [2] has summarized four different power capacitor measurement methods as series bridge method, LCR impedance meter measurement method, resistor charge-discharge circuit method and in-situ snubber-capacitor measurement, and it's largely adopted by following researchers [3][4][5]. However, In paper [2][3][4][5], measurement instrument such as oscilloscope, series bridge, LCR impedance meter and so on are connected directly with the capacitor under test, where measurement noise and DC voltage biased are also measured with the useful signals which will increase the nonlinear capacitance measurement error.…”

Section: Introductionmentioning

confidence: 99%

Accurate nonlinear capacitance measurement based on frequency response compensation

Xiao,

Chen,

Chen

et al. 2024

Asia Conference on Electronic Technology (ACET 2024)

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Characterization of dielectric properties of commercial ceramic capacitors for pulsed power applications

Abstract: -

Cited by 11 publications

References 12 publications

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

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

Applications of PZT Dielectric Ceramics in High-Energy Storage Systems

Accurate nonlinear capacitance measurement based on frequency response compensation

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