Voltage Breakdown of Microwave Antennas

Taylor, W. C.; Scharfman, W. E.; Morita, T.

doi:10.1016/b978-0-12-027907-4.50008-5

Cited by 27 publications

(27 citation statements)

References 36 publications

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“…Figure 1 shows the measured field threshold for breakdown as a function of pressure in air and argon. A theoretical comparison for air is calculated using the model of Taylor et al, 23 which relies on an empirical fit of ionization rate data. Argon data is compared to the analytical model of Raizer and Vyskrebentsev 24 for monatomic gases.…”

Section: 11mentioning

confidence: 99%

Pressure dependence of plasma structure in microwave gas breakdown at 110 GHz

Cook

Shapiro

Temkin

2010

Applied Physics Letters

135

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Recent studies of 110 GHz microwave discharges in air at atmospheric pressure have demonstrated formation of a large array of quarter-wavelength-spaced plasma filaments. Here we present measurements showing that as pressure is decreased from atmosphere to a few torr, the discharge transitions from a well-defined array to a smeared-out array and finally to a diffuse plasma. Despite the distinct nature of breakdown phenomena at high microwave frequencies, the pressure dependence of the breakdown threshold field is seen to follow a Paschen-type curve. Data for air and argon at 110 GHz are compared with previous low-frequency data.

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Section: 11mentioning

confidence: 99%

Pressure dependence of plasma structure in microwave gas breakdown at 110 GHz

Cook

Shapiro

Temkin

2010

Applied Physics Letters

135

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“…In the case of antennas carried on reentry vehicles, it is necessary to determine the power-handling capability in the presence of the ionized air enveloping the reentry vehicle [138]. As the power transmitted from the antenna is increased, a level is reached where the power absorbed by the ionized gas is sufÞcient to heat the gas and increase the electron density.…”

Section: Power-handling Measurementsmentioning

confidence: 99%

IEEE Standard Test Procedures for Antennas

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“…The variation of ionization frequency with electric field strength is often conveniently simplified as a power law dependence, cf [3], i.e. ν i ∝ E β eff , where β is a parameter that depends on the type of gas.…”

Section: Basic Breakdown Physicsmentioning

confidence: 99%

“…An often used way of characterizing the breakdown threshold condition is by means of the effective diffusion length, L eff , defined as, cf [1,3,5,6]…”

Section: Effective Diffusion Lengthmentioning

confidence: 99%

Microwave Breakdown Field in a Resonant Spherical Cavity

Tomala

Jordan

Anderson³

et al. 2006

Contrib. Plasma Phys.

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In the present work, the microwave breakdown threshold in a gas-filled spherical resonator, is determined for the case when the cavity is excited in its lowest order mode, which implies that the microwave field strength depends on both radius and azimuthal angle. A semi-analytical approximation of the breakdown threshold is found using a direct variational approach. The variational predictions are compared with the results of full numerical calculations and demonstrate very good agreement

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Voltage Breakdown of Microwave Antennas

Cited by 27 publications

References 36 publications

Pressure dependence of plasma structure in microwave gas breakdown at 110 GHz

Pressure dependence of plasma structure in microwave gas breakdown at 110 GHz

IEEE Standard Test Procedures for Antennas

Microwave Breakdown Field in a Resonant Spherical Cavity

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