Window breakdown caused by high-power microwaves

Neuber, A.; Dickens, J.; Hemmert, D.; Krompholz, H.; Hatfield, L.L.; Kristiansen, M.

doi:10.1109/27.700757

Cited by 90 publications

(39 citation statements)

References 10 publications

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“…[3][4][5][6][7][8][9][10][11] Most recent studies examine the combined action of a uniform rf field, parallel to the surface, and a uniform dc electric field, normal to the surface ͑the latter will be present, e.g., if the dielectric accumulates charges͒ and are based on Monte Carlo simulations. 2,9,10 ͑An exception is the work by Neuber et al 5 and Valfells et al 11 where an exact solution for the dc field distribution was constructed for a stationary multipactor discharge.͒ However, the use of Monte Carlo simulations requires tremendous computation time since it is necessary to carry out calculations within a wide range of parameters.…”

Section: Introductionmentioning

confidence: 99%

Multipactor discharge on a dielectric surface: Statistical theory and simulation results

et al. 2005

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This paper presents a novel theory for describing the initial stage of a single-surface multipactor discharge on a dielectric surface in the presence of a dc electric field, which returns secondary emitted electrons to the surface. The calculations employ a statistical method based on an exact analytical solution for the probability density of the arrival times of the secondary electrons. A general integral equation determining the steady-state distribution of the emission phases of the secondary electrons and the threshold of the multipactor growth is formulated. A computer program has been developed to implement this theory for realistic secondary yield curves and arbitrary, nonuniform, distributions for velocities and angles of emitted electrons. Susceptibility diagrams, applicable to a wide range of materials, are obtained in terms of the rf and dc electric fields and are found to be relatively independent of the emission distribution of the electrons.

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Section: Introductionmentioning

confidence: 99%

Multipactor discharge on a dielectric surface: Statistical theory and simulation results

et al. 2005

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“…Near-field radiation patterns are useful in diagnosing antenna arrays defects [1], measuring far-field antenna patterns where the far-field is prohibitively far [2], and locating field concentrations in high power microwave applications [3], which could lead to material breakdown. There are two categories of near-field measurements: direct and indirect.…”

Section: Introductionmentioning

confidence: 99%

Development of an Optically Modulated Scatterer Probe for a Near-Field Measurement System

Patrick¹,

Hutchinson²,

Boos³

2016

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Standard Form 298 (Rev. 8-98)Prescribed by ANSI Std. Z39.18Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing this collection of information. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) SPONSOR / MONITOR'S ACRONYM(S) 9. SPONSORING / MONITORING AGENCY NAME(S) AND ADDRESS(ES) SPONSOR / MONITOR'S REPORT NUMBER(S) Near-field measurement PhotodiodesIn high-fidelity, near-field measurements, the measurement probe must minimally impact the near-field of the antenna-under-test. To accomplish this, we developed an optically modulated, near-field probe which consists of a rectangular dipole antenna loaded with a photodiode. The modulation scheme separates scattering off of the probe from background reflections. We present the design and performance of an optically modulated scatterer (OMS) probe for use in a near-field measurement system.

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“…Hence, the study of this phenomenon, which is better known as a secondary-emission discharge in the Russian-language literature, has been given considerable attention for over 50 years [9][10][11][12][13][14][15]. In particular, there has recently been a notable increase in interest in the studies of a multipactor arising on the surface of the output window of a high-power vacuum microwave device [15][16][17][18][19][20][21][22] since the development of a multipactor can be one of the reasons for a microwave breakdown on the window.…”

Section: Introductionmentioning

confidence: 99%

Multipactor discharge on a dielectric surface in the field of circularly polarized plane waves

Buyanova

Nechaev

Semenov

2007

Radiophys Quantum El

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The secondary-emission discharge (multipactor) on a dielectric surface irradiated by a plane TEM wave of circular polarization is analyzed theoretically. It is shown that interaction of electrons with the electromagnetic wave field can provide their return to the emission surface, which makes a multipactor possible even without any external static fields. Multipactor conditions for different reflection coefficients of the incident wave are found. The obtained results are used to estimate the throughput of the output window of a high-power vacuum microwave device. Specifically, it is established that decreasing the high-frequency field amplitude on the window surface when the mode of a partially standing wave is realized in the vicinity of the window does not always help raise its electric strength.

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Window breakdown caused by high-power microwaves

Cited by 90 publications

References 10 publications

Multipactor discharge on a dielectric surface: Statistical theory and simulation results

Multipactor discharge on a dielectric surface: Statistical theory and simulation results

Development of an Optically Modulated Scatterer Probe for a Near-Field Measurement System

Multipactor discharge on a dielectric surface in the field of circularly polarized plane waves

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