3D Magnetron simulation with CST STUDIO SUITE&amp;#x2122;

Balk, Monika C.

doi:10.1109/ivec.2011.5747066

Cited by 13 publications

(5 citation statements)

References 2 publications

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“…The avalanche effect is then reached when the model predicts an exponential increase of the number of electrons being captured in the RF field and the corresponding RF power level is then used as Multipactor power threshold for this component. The corner stone of the Particles In Cell Multipactor RF power threshold prediction accuracy lies in the characterization of the secondary electrons emission created by the incident electron impact with respect to the local surface for each used materials and surface roughness [7][8] [9]. Unfortunately, the characterization of the secondary emission curve of a material sample is quite difficult and not very accurate today, which impairs the ability of the Particles In Cell model to accurately predict the Multipactor power threshold of a component [10] [11].…”

Section: Multipactor Considerationsmentioning

confidence: 99%

PIM and multipactor considerations for future high-RF power space missions

Piro

Brand

2014

The 8th European Conference on Antennas and Propagation (EuCAP 2014)

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The increasing demand for satellite communications within an environment which is not unlimited in terms of spectrum and orbital slots, requires more and more advanced satellite missions incorporating several services in a complex multi-frequency band communication payload. However the conception of high RF power payloads is not without real technical challenges. This article investigates two challenging needs facing the satellite manufacturers which are the control of Passive Inter-Modulation products (PIM) and the design of high RF power components free of Multipaction effects.

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Section: Multipactor Considerationsmentioning

confidence: 99%

PIM and multipactor considerations for future high-RF power space missions

Piro

Brand

2014

The 8th European Conference on Antennas and Propagation (EuCAP 2014)

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“…To simplify the calculation, the geometric parameters are optimized with three of the seven variables mentioned above fixed (𝑅 iris = 40 mm, 𝐿 eff = 100 mm, 𝛼 = 75 • ), so only the remaining four variables (a, b, A, B) need to be optimized. The geometric parameters are optimized using CST Microwave Studio (MWS) [24]. First, the value of a/b is determined, and the result is shown in figure 3.…”

Section: Jinst 18 P04019mentioning

confidence: 99%

RF design and frequency sensitivity analysis of a 1500 MHz passive third harmonic superconducting cavity for the SILF

Yuan¹,

Ma²,

Sun³

et al. 2023

J. Inst.

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To reduce Touschek scattering in the beam and extend the lifetime of the beam in the Shenzhen Innovation Light-source Facility (a fourth-generation light source), a 1500 MHz passive third harmonic system will be used. The present work is devoted to the RF design and frequency sensitivity analysis of the 1500 MHz passive third harmonic superconducting cavity, optimizing the RF parameters of the cavity, and giving a frequency scheme for the cavity in fabrication. The reliability of the cavity during operation is taken as the main goal for the optimization of the geometrical parameters, and its structural and RF parameters are obtained with E peak/E acc of 2.17, B peak/E acc of 5.12 mT/(MV/m) and G · R/Q of 25052 at 2 K. A pair of fluted beam pipes are used to propagate the higher order modes (HOMs) of the harmonic cavity, allowing a smooth transition of the first dipole mode to the absorber located at room temperature area. For the frequency sensitivity analysis, the frequency variations of the cavity in fabrication are obtained by multi-physics coupling simulation in the paper, which gives the target frequency of the cavity between welding and preloading. After electron beam welding (EBW), the resonant frequency of the cavity should be maintained at 1500.096 MHz, and the pre-tuning target frequency is 1497.456 MHz. The slow tuning range is ±400 kHz, the fast-tuning range is 600 Hz, and the maximum allowable tuning force is 15 kN.

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“…An external magnetic field of 0.19 T is uniformly applied axially (z-coordinates). The PIC position monitor has been used to see particle trajectory at different time [10]. The simulation run time is 150 ns.…”

Section: Pic Simulation Of Hot Test Modelmentioning

confidence: 99%

“…But, now in the recent years some powerful commercial software [5], [6] and hardware are available, which are very useful for electromagnetic and charge simulation leading to fast design and understanding of beam-wave interaction physics. Many publications on PIC simulation for oven magnetrons are available [7]- [10]. This paper is mainly oriented toward design studies of resonant system, known as anode block, of high power CW class of reentrant multicavity magnetrons through computer simulations and analysis.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic and Particle-in-Cell Simulation Studies of a High Power Strap and Vane CW Magnetron

Vyas

Maurya

Singh

2014

IEEE Trans. Plasma Sci.

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This paper presents electromagnetic and particlein-cell (PIC) simulation studies of ring strapped vane resonator of a 2.45 GHz 1-kW magnetron using Computer Simulation technology microwave studio and MAGIC-3-D. The aim was to gain design understanding through the analysis of constituent parts of the resonant system and to deduce results having significant engineering value. The electromagnetic analysis includes modeling the effect of the end-gap length, the straps, the coupling antenna, and the surface roughness of cavity wall on resonant frequency. It was found that a clearance of 4 mm and beyond between cavity resonator and end plate have negligible effect on resonance frequency. Straps influence the resonant frequency of the π mode maximum, and can be used to control and fine tune the resonant frequency of the desired π mode. A surface roughness of 1 μm or more affects the unloaded Q of the resonator cavity adversely. Coupling antenna height is found to play an important role to achieve desired Q l and Q ext for the segment loaded axial extraction of power. The PIC simulation study predicted that the hot resonant frequency differ from cold resonant frequency by ∼9 MHz. The computed frequency, power, and efficiency were found to be 2.462 GHz, 1.3 kW, and 70%, respectively.Index Terms-Cold resonant frequency, electromagnetic and particle-in-cell (PIC) simulation, hot resonant frequency, industrial magnetron, virtual prototyping.

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3D Magnetron simulation with CST STUDIO SUITE™

Cited by 13 publications

References 2 publications

PIM and multipactor considerations for future high-RF power space missions

PIM and multipactor considerations for future high-RF power space missions

RF design and frequency sensitivity analysis of a 1500 MHz passive third harmonic superconducting cavity for the SILF

Electromagnetic and Particle-in-Cell Simulation Studies of a High Power Strap and Vane CW Magnetron

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