Traveling-wave tube cold-test circuit optimization using cst MICROWAVE STUDIO

Chevalier, Christine T.; Kory, C.L.; Wilson, Jeffrey D.; Wintucky, Edwin G.; Dayton, J.A.

doi:10.1109/ted.2003.816109

Cited by 19 publications

(7 citation statements)

References 2 publications

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“…The slotted cavity length L is dominantly determined by the corresponding k z (the axial propagation constant of the cutoff frequency), and in our design L ¼ 31 mm. The loaded quality factor Q L can be obtained by the passive wave equation and boundary conditions of the slotted structure in the above peniotron model, 18 and here the Q L of the peniotron is shown in Table I. The starting current is the minimum beam current required to start oscillations from noise in the RF structure.…”

Section: Small Signal Calculationmentioning

confidence: 99%

A W-band sixth-harmonic magnetron-type slotted peniotron

et al. 2013

Physics of Plasmas

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This paper has numerically investigated operating characteristics of a w-band six-harmonic magnetron-type slotted peniotron with 7 vanes. With the new structure design, a high efficiency of 40% w-band 30 kW medium power microwave source has been achieved and the mode competition can be somewhat suppressed. The main advantage of such a peniotron, based on a permanent magnet, is that it can have much more compact size and lower cost, and its operation gap can be greatly reduced. V C 2013 American Institute of Physics. [http://dx.

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Section: Small Signal Calculationmentioning

confidence: 99%

A W-band sixth-harmonic magnetron-type slotted peniotron

et al. 2013

Physics of Plasmas

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“…A few successful studies on the use of Microwave Studio simulation software have been conducted. 12,[18][19][20] There is no need for calculations of complex equations or applying the trial and error method to a cavity to achieve effective results, unlike in the studies of Metaxas 17 and Sangdao et al 21 Although the Microwave Studio simulation software can make nearly precise predictions for cavity design, a good knowledge of electromagnetic filed distribution is necessary. The range of the length and diameter aspect ratio of the cylindrical cavity for the simulation trial was 0.5-2.…”

Section: Resonant Cavity Designmentioning

confidence: 99%

Preheating of a poly(ethylene terephthalate) preform for stretch blow molding using microwaves

Erbulut

Masood

Senko

et al. 2009

J of Applied Polymer Sci

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In this work, a new microwave resonant cavity was developed to completely preheat a poly(ethylene terephthalate) preform efficiently for a stretch blow molding process. Microwave power simulation software was used to design the microwave resonant cavity. An investigation of the inside and outside surface temperature profile along the preform and free inflation experimentation indicated that a cylindrical resonant cavity could efficiently preheat a poly(ethylene terephthalate) preform with the advantages of reduced time and increased energy savings versus a conventional infrared heating system.

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“…This module is a general purpose module of the 3D EM simulator and is used for obtaining the broadband frequency domain results like S-parameters. 14,15 The applicator in the form of a rectangular waveguide was designed with an appropriate location of the sample holder for holding specific geometry of the preform. Designing the waveguide with the simulation software offers the benefits of savings of time and price for experiments.…”

Section: High Frequency Em Simulation Softwarementioning

confidence: 99%

A novel approach of measuring the dielectric properties of PET preforms for stretch blow moulding

Erbulut

Masood

Tran

et al. 2008

J of Applied Polymer Sci

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Polyethylene terephthalate (PET) is the most common plastic material used in injection stretch blow molding (ISBM) process for the manufacturing of bottles. The injection-molded PET preform has to be preheated uniformly to a pliable state before the blowing stage of the process. Microwave technology offers a potentially more economical means for preheating the preform in place of the conventional infrared oven heating. For such applications, determination of dielectric properties of PET preform of a given geometry is essential. This article describes a novel approach of measuring the dielectric properties of PET preforms at microwave frequencies instead of the common experimental procedures used for such measurements. The dielectric properties are determined by using both CST Microwave Studio electromagnetic simulation software and the automatic network analyzer together. No complex mathematical solutions are required. Validation of this new approach has been made by comparing the measured dielectric properties of some polymers with those available in the published literature.

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Traveling-wave tube cold-test circuit optimization using cst MICROWAVE STUDIO

Cited by 19 publications

References 2 publications

A W-band sixth-harmonic magnetron-type slotted peniotron

A W-band sixth-harmonic magnetron-type slotted peniotron

Preheating of a poly(ethylene terephthalate) preform for stretch blow molding using microwaves

A novel approach of measuring the dielectric properties of PET preforms for stretch blow moulding

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