Using a Re-Entrant Microwave Resonator to Measure and Model the Dielectric Breakdown Electric Field of Gases

Remillard, Stephen K.; Hardaway, Alejandro; Mork, B.; Gilliland, Jake; Gibbs, Joseph

doi:10.2528/pierb09041706

Cited by 16 publications

(25 citation statements)

References 23 publications

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“…There is also a simple complementary approach obtained by combination of an analytical and experimental investigations suggested in [13]. Actually, the method is based on experimental data of the breakdown voltages at low pressures and their extrapolation over a wide range of pressures.…”

Section: An Analytical-experimental Approachmentioning

confidence: 99%

“…Actually, the method is based on experimental data of the breakdown voltages at low pressures and their extrapolation over a wide range of pressures. The expression for the breakdown voltage is written in the form [13]:…”

Section: An Analytical-experimental Approachmentioning

confidence: 99%

“…This paper contains result of our studies of the microwave induced dielectric breakdown of gases in a uniform electric field. Cavity resonators have often been used [13,14], but field distributions are inhomogeneous, * corresponding author; e-mail: marija@ipb.ac.rs resulting in a spatially dependent ionization rate and breakdown which is strongly influenced by the diffusion of charged particles out of the high electric field region.…”

Section: Introductionmentioning

confidence: 99%

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Microwave Field Strength Computing for the Resonator Designs and Filters

Radmilović-Radjenović

Radjenović

Savić

2016

Acta Phys. Pol. A

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Recent development of microwave pulse generators, which are now capable of delivering very short and very intensive pulses requires properly generalized classical breakdown theory. On the other hand, the trend to design microwave devices as small and compact as possible, leads to a concern about the concomitant breakdown strength of the construction, involving more complicated geometries, such as in microwave resonators and filters. In this paper, several aspects of microwave breakdown field strength in commercially available resonator designs and filters are presented and analyzed. The numerical predictions based on the Slater theorem are compared with the analytical results and predictions of the fluid approach, demonstrating very good agreement.

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Section: An Analytical-experimental Approachmentioning

confidence: 99%

Section: An Analytical-experimental Approachmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Microwave Field Strength Computing for the Resonator Designs and Filters

Radmilović-Radjenović

Radjenović

Savić

2016

Acta Phys. Pol. A

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“…A very important element in microwave absorption, the loss tangent, transforms incoming microwave energy into heat. The overall losses based on dissipation usually involve the influence of permittivity and conductivity of the materials [67][68][69][70][71][72][73][74][75]. The formula on loss tangent, tan δ is shown as…”

Section: Defining the Dielectric Propertiesmentioning

confidence: 99%

Rubber Tire Dust-Rice Husk Pyramidal Microwave Absorber

Malek

Cheng

Nadiah

et al. 2011

PIER

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Abstract-Rubber tire dust-rice husk is an innovation in improving the design of pyramidal microwave absorbers to be used in radio frequency (RF) anechoic chambers. An RF anechoic chamber is a shielded room covered with absorbers to eliminate unwanted reflection signals. To design the pyramidal microwave absorber, rice husk will be added to rubber tire dust since the study shows that both have high percentages of carbon. This innovative material combination will be investigated to determine the best reflectivity or reflection loss performance of pyramidal microwave absorbers. Carbon is the most important element that must be in the absorber in order to help the absorption of unwanted microwave signals. In the commercial

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“…Cavity resonators have been used for over 50 years to measure the microwave breakdown electric field thresholds of various gasses [2]. At specific mode frequencies, the cavity resonator builds up the electric field amplitude to large values in localized regions.…”

mentioning

confidence: 99%

Visible Plasma Clouds With an Externally Excited Spherical Porous Cavity Resonator

Bernhardt

Briczinski

Han

et al. 2015

IEEE Trans. Plasma Sci.

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A microwave driven resonator is as an electron/ion cloud generator for illumination and plasma source applications. A sustained porous cavity resonator (PCR) glow discharge is externally excited using a resonant frequency electromagnetic (EM) wave that excites large internal electric fields. The resonator with a Q of 300 amplifies the incident electric field by factors of about 100 causing a breakdown of the neutral gas inside the sphere. The rise time of the fields inside the sphere is Q times the wave period. A glowing plasma ball is sustained around the point where the maximum electric fields exceed the plasma-discharge threshold for the low-pressure gas inside the resonator. After the EM pump field is removed, the plasma light source is rapidly quenched. The externally driven spherical PCR was fabricated from a theoretical design of the PCR for a laboratory demonstration of the plasma ball generation system. Using both theory and experiment, basic research has been applied to understand: 1) the EMs of resonator excitation and amplification; 2) the generation of light by glow radio frequency discharge; and 3) the effect of background neutral density of the size and intensity of the glowing plasma clouds. For this study, plasma resonators were constructed for the spherical TM101 and TE101 modes and a TE011 circular-cylindrical cavity. All PCR structures provide the ability to confine a plasma into a desired spatial shape without magnetic fields.

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Using a Re-Entrant Microwave Resonator to Measure and Model the Dielectric Breakdown Electric Field of Gases

Cited by 16 publications

References 23 publications

Microwave Field Strength Computing for the Resonator Designs and Filters

Microwave Field Strength Computing for the Resonator Designs and Filters

Rubber Tire Dust-Rice Husk Pyramidal Microwave Absorber

Visible Plasma Clouds With an Externally Excited Spherical Porous Cavity Resonator

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