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RSS2009 Vol. 21, No. 04
Recommend Articles
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Design of external-wave and particle modules for 3D full electromagnetic and PIC simulation software
2009,
21.
Abstract:
The algorithms of external-wave and particle modules were introduced for the 3D full electromagnetic and PIC simulation software. External-wave boundary module was studied, including coaxial-line, rectangular and cylindrical waveguide. The transmissi...
The algorithms of external-wave and particle modules were introduced for the 3D full electromagnetic and PIC simulation software. External-wave boundary module was studied, including coaxial-line, rectangular and cylindrical waveguide. The transmissi...
2009,
21.
Abstract:
According to theoretical analysis of the slow-wave structure(SWS), the parameters of SWS, the cathode and the anode are chosen. A new type X-band magnetically insulated line oscillator(MILO) has been designed using the advantages of both tapered MILO...
According to theoretical analysis of the slow-wave structure(SWS), the parameters of SWS, the cathode and the anode are chosen. A new type X-band magnetically insulated line oscillator(MILO) has been designed using the advantages of both tapered MILO...
2009,
21.
Abstract:
By way of numerical analysis, microwave generation characteristics of bifrequency magnetically insulated transmission line oscillators (BFMILOs) with azimuthal partition proportions of 1∶1, 1∶2, 1∶3, 2∶1 and 3∶1 are investigated. The microwave field ...
By way of numerical analysis, microwave generation characteristics of bifrequency magnetically insulated transmission line oscillators (BFMILOs) with azimuthal partition proportions of 1∶1, 1∶2, 1∶3, 2∶1 and 3∶1 are investigated. The microwave field ...
2009,
21.
Abstract:
A novel relativistic backward-wave oscillator(RBWO) is introduced with two kinds of slow wave structure separated by a tapered waveguide. It could obtain an output of C-band and X-band microwave simultaneously by means of a single electron beam. A 2....
A novel relativistic backward-wave oscillator(RBWO) is introduced with two kinds of slow wave structure separated by a tapered waveguide. It could obtain an output of C-band and X-band microwave simultaneously by means of a single electron beam. A 2....
2009,
21.
Abstract:
The gain of the open-ended rectangular waveguide was studied and the effects of flange on the gain of waveguide were discussed. The gain of BJ100 was calculated by an electromagnetic field simulation code. It is found that the period of the gain fluc...
The gain of the open-ended rectangular waveguide was studied and the effects of flange on the gain of waveguide were discussed. The gain of BJ100 was calculated by an electromagnetic field simulation code. It is found that the period of the gain fluc...
2009,
21.
Abstract:
This paper derives the dispersion equation and the linear growth rate formula of the coaxial relativistic baorward-wave oscillator(RBWO) according to the linear theory. The effects of the ripple period and ripple depth on the linear growth rate of th...
This paper derives the dispersion equation and the linear growth rate formula of the coaxial relativistic baorward-wave oscillator(RBWO) according to the linear theory. The effects of the ripple period and ripple depth on the linear growth rate of th...
2009,
21.
Abstract:
This paper presents high frequency characteristics analysis on an open input cavity of an S-band relativistic klystron amplifier and the optimization of the cavity geometry. Cold test on the high frequency parameters of the fabricated cavity is perfo...
This paper presents high frequency characteristics analysis on an open input cavity of an S-band relativistic klystron amplifier and the optimization of the cavity geometry. Cold test on the high frequency parameters of the fabricated cavity is perfo...
2009,
21.
Abstract:
An L-band 10 MW peak power, 150 kW average power multi-beam klystron(MBK) is studied．High quality multiple paracial electron optics system axis are achieved in a uniform, multi-lens magnetic field focusing system. The non-linear calculation of beam-w...
An L-band 10 MW peak power, 150 kW average power multi-beam klystron(MBK) is studied．High quality multiple paracial electron optics system axis are achieved in a uniform, multi-lens magnetic field focusing system. The non-linear calculation of beam-w...
2009,
21.
Abstract:
An L-band relativistic backward wave oscillator with coaxial extractor is investigated using the KARAT 2.5 D particle simulation code. Detailed beam-wave physical interaction in the oscillator are presented. Typical simulation results are that, under...
An L-band relativistic backward wave oscillator with coaxial extractor is investigated using the KARAT 2.5 D particle simulation code. Detailed beam-wave physical interaction in the oscillator are presented. Typical simulation results are that, under...
2009,
21.
Abstract:
A high energy density midium-high voltage pulse forming network(PFN) was designed with low self-inductance ceramic capacitors. Each capacitor has a measured capacitance of around 1.7 nF. The capacitors are made from a very high dielectric constant ba...
A high energy density midium-high voltage pulse forming network(PFN) was designed with low self-inductance ceramic capacitors. Each capacitor has a measured capacitance of around 1.7 nF. The capacitors are made from a very high dielectric constant ba...
2009,
21.
Abstract:
With the complementary antenna theory, this paper deduced the resonant frequencies of narrow slots. When the length of a vacuum slot is less than 5 times of the incident wavelength and the deviation angle of radiation relative to the perpendicular di...
With the complementary antenna theory, this paper deduced the resonant frequencies of narrow slots. When the length of a vacuum slot is less than 5 times of the incident wavelength and the deviation angle of radiation relative to the perpendicular di...
2009,
21.
Abstract:
Coaxial vircator with beam premodulation is analyzed by solving Green’s function, and the relationships of beamwave conversion efficiency to premodulation depth and frequency are obtained. Analysis results show that beam-wave conversion efficiency i...
Coaxial vircator with beam premodulation is analyzed by solving Green’s function, and the relationships of beamwave conversion efficiency to premodulation depth and frequency are obtained. Analysis results show that beam-wave conversion efficiency i...
2009,
21.
Abstract:
Seeking for the criterion of the least sample of microwave effects experiment, the research work between sample effect probability and collectivity effect probability is developed by the interval estimating. The Bernoulli distribution of a single mic...
Seeking for the criterion of the least sample of microwave effects experiment, the research work between sample effect probability and collectivity effect probability is developed by the interval estimating. The Bernoulli distribution of a single mic...
2009,
21.
Abstract:
Air breakdown caused by repetition frequency high power microwave (HPM) has been investigated. The electronic relaxation process affected by repetition frequency pulses has been analyzed, and variations regulation of the electron temperature and free...
Air breakdown caused by repetition frequency high power microwave (HPM) has been investigated. The electronic relaxation process affected by repetition frequency pulses has been analyzed, and variations regulation of the electron temperature and free...
2009,
21.
Abstract:
A triangle-grid radial-line helical rectangular array antenna was proposed. Based on the backgrounds and the principle of the array antenna, the 8-element triangle-grid radial-line helical rectangular array antenna was studied by the numerical simula...
A triangle-grid radial-line helical rectangular array antenna was proposed. Based on the backgrounds and the principle of the array antenna, the 8-element triangle-grid radial-line helical rectangular array antenna was studied by the numerical simula...
2009,
21.
Abstract:
The transmission of wave packets in a potential well was analyzed by the quantum effect theory. The occurrence condition of resonant transmission was obtained by classified discussion.The comparison of it with results of the numerical simulation and ...
The transmission of wave packets in a potential well was analyzed by the quantum effect theory. The occurrence condition of resonant transmission was obtained by classified discussion.The comparison of it with results of the numerical simulation and ...
2009,
21.
Abstract:
In the experiments of high power microwave(HPM) effects on microwave components, four kinds of effect phenomenon were observed, including the changes of microwave pulse power, width, phase and transient HPM suppression. Based on these phenomena, math...
In the experiments of high power microwave(HPM) effects on microwave components, four kinds of effect phenomenon were observed, including the changes of microwave pulse power, width, phase and transient HPM suppression. Based on these phenomena, math...
2009,
21.
Abstract:
A novel method for measuring the complex permittivity of dielectric plates is proposed by using TM0mn modes in a closed cylindrical resonant cavity. The analysis based on the Ritz-Galerkin method, mode matching technique and transmission-mode quality...
A novel method for measuring the complex permittivity of dielectric plates is proposed by using TM0mn modes in a closed cylindrical resonant cavity. The analysis based on the Ritz-Galerkin method, mode matching technique and transmission-mode quality...
2009,
21.
Abstract:
The basic concept of the integrated circuit high power microwave(HPM) vulnerability was introduced as well as the main establishment processes of an integrated circuit high power microwave vulnerability estimation model. It is demonstrated by an exam...
The basic concept of the integrated circuit high power microwave(HPM) vulnerability was introduced as well as the main establishment processes of an integrated circuit high power microwave vulnerability estimation model. It is demonstrated by an exam...
2009,
21.
Abstract:
This paper studies the termination responses of a shielded cable within a cavity with slot under external electromagnetic field, using a mixed method combining the finite difference time domain(FDTD)method with the transmission line model of the shie...
This paper studies the termination responses of a shielded cable within a cavity with slot under external electromagnetic field, using a mixed method combining the finite difference time domain(FDTD)method with the transmission line model of the shie...
2009,
21.
Abstract:
Transmission line method is extended to include multi-mode transverse electric cavity modes which are introduced by aperture coupling and it is used to analyze the coupling effectiveness of double layer rectangular enclosure with aperture to the wide...
Transmission line method is extended to include multi-mode transverse electric cavity modes which are introduced by aperture coupling and it is used to analyze the coupling effectiveness of double layer rectangular enclosure with aperture to the wide...
2009,
21.
Abstract:
Based on the theory of mode coupling, the paper deduced the timedependent couplingwave equationd that the modes satisfy in tapering circular waveguide, and presented the expressions of coupling coefficients of the equations. The metallic wall loss ...
Based on the theory of mode coupling, the paper deduced the timedependent couplingwave equationd that the modes satisfy in tapering circular waveguide, and presented the expressions of coupling coefficients of the equations. The metallic wall loss ...
2009,
21.
Abstract:
A capacitor-loaded parallel plate transmission line model was introduced and its propagating characteristic was analyzed. The loaded capacitor’s distance was decreased to increase the upper limit of PFN’s cutoff frequency and to decrease the impedanc...
A capacitor-loaded parallel plate transmission line model was introduced and its propagating characteristic was analyzed. The loaded capacitor’s distance was decreased to increase the upper limit of PFN’s cutoff frequency and to decrease the impedanc...
2009,
21.
Abstract:
A simple, mobile and robust high power wideband source has been developed. It is comprised of a ring switch, a transmission line, and a conical antenna. The resonance is simulated by a finite difference time domain(FDTD) software. A wideband microwav...
A simple, mobile and robust high power wideband source has been developed. It is comprised of a ring switch, a transmission line, and a conical antenna. The resonance is simulated by a finite difference time domain(FDTD) software. A wideband microwav...
2009,
21.
Abstract:
A compact output switch for a water pulse forming line(PFL) ebeam accelerator was designed. The accelerator is of the helical coaxial PFL type, having impedance of 9 Ω, and charging voltage 1.2 MV, and outputs 600 kV, 100 ns on matched load. The len...
A compact output switch for a water pulse forming line(PFL) ebeam accelerator was designed. The accelerator is of the helical coaxial PFL type, having impedance of 9 Ω, and charging voltage 1.2 MV, and outputs 600 kV, 100 ns on matched load. The len...
2009,
21.
Abstract:
Increasing gain and radiant efficiency is one of the most important aims of the research on trantrent antenna. The energy array factor of transient radiation was deduced by setting the Gaussian pulse feeding waveform. The transient radiation characte...
Increasing gain and radiant efficiency is one of the most important aims of the research on trantrent antenna. The energy array factor of transient radiation was deduced by setting the Gaussian pulse feeding waveform. The transient radiation characte...
2009,
21.
Abstract:
Effect of gas flow velocity on repetitive operation performance was experimentally investigated for a spark gap switch with a compact gas blowing system, based on a compact repetitive Tesla transformer. The experimental results were presented and ana...
Effect of gas flow velocity on repetitive operation performance was experimentally investigated for a spark gap switch with a compact gas blowing system, based on a compact repetitive Tesla transformer. The experimental results were presented and ana...
2009,
21.
Abstract:
The theoretical calculation of Blumlein pulse forming line(PFL) is complicated and maybe inaccurate. It is often difficult to get reliable direct electrical measurements due to the scale of these machines. To determine exact parameters of the Blumlei...
The theoretical calculation of Blumlein pulse forming line(PFL) is complicated and maybe inaccurate. It is often difficult to get reliable direct electrical measurements due to the scale of these machines. To determine exact parameters of the Blumlei...
2009,
21.
Abstract:
A radial insulation structure used in an intense beam diode was introduced and the surface flashover across the oil-solid interface was studied. The geometry structure parameters were optimized by simulating the static electric field intensity distri...
A radial insulation structure used in an intense beam diode was introduced and the surface flashover across the oil-solid interface was studied. The geometry structure parameters were optimized by simulating the static electric field intensity distri...
2009,
21.
Abstract:
This paper has investigated the high voltage pulse on the lowimpedance load（19 Ω） generated by the pulse transformer driven by the electrically exploded opening switch. It has built a lump-parameter circuit model by the Ansoft Simplorer 7 code to si...
This paper has investigated the high voltage pulse on the lowimpedance load（19 Ω） generated by the pulse transformer driven by the electrically exploded opening switch. It has built a lump-parameter circuit model by the Ansoft Simplorer 7 code to si...
2009,
21.
Abstract:
Three coaxial peaking-chopping subnanosecond gas switches were designed,including two ring-ring electrodes and a sphere-ring electrode. Experimental researches on their operating characteristics were performed on a semiconductor opening switch-based ...
Three coaxial peaking-chopping subnanosecond gas switches were designed,including two ring-ring electrodes and a sphere-ring electrode. Experimental researches on their operating characteristics were performed on a semiconductor opening switch-based ...
2009,
21.
Abstract:
The circuit diagram of a 4-stage voltage transmission line transformer(TLT) is analyzed. The circuit is simplified by means of equivalent circuit, and the expression of the output waveform is derived. The low voltage test of the 4-stage TLT is develo...
The circuit diagram of a 4-stage voltage transmission line transformer(TLT) is analyzed. The circuit is simplified by means of equivalent circuit, and the expression of the output waveform is derived. The low voltage test of the 4-stage TLT is develo...
2009,
21.
Abstract:
This paper discusses the design feature of the repetitive Marx generator, and presents the electrostatic field in switch cavity. Based on the theoretic analysis and experimental research, a 12 stage repetitive Marx generator with inductive isolators ...
This paper discusses the design feature of the repetitive Marx generator, and presents the electrostatic field in switch cavity. Based on the theoretic analysis and experimental research, a 12 stage repetitive Marx generator with inductive isolators ...
