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1988 Vol. 10, No. 3
Display Method:
1988, 10(3): 193-201.
Abstract:
Lattice fitter is superior to its counterpart of direct structure in numerical properties and modularity etc., but it is more complex to realize. This paper suggests a simplified lattice structure for the realization of FIR digital filters, so that t...
Lattice fitter is superior to its counterpart of direct structure in numerical properties and modularity etc., but it is more complex to realize. This paper suggests a simplified lattice structure for the realization of FIR digital filters, so that t...
1988, 10(3): 202-209.
Abstract:
The new concepts of reducible fundamental cutset and reducible fundamental loop through an analysis of ladder network is developed. A new analytic method, named structural analysis method, is presented. It evaluates the controllability and measurabli...
The new concepts of reducible fundamental cutset and reducible fundamental loop through an analysis of ladder network is developed. A new analytic method, named structural analysis method, is presented. It evaluates the controllability and measurabli...
1988, 10(3): 210-217.
Abstract:
The partial charge-simulation method is presented for calculating the capacitance of the rectangular coaxial line with offset inner conductor. The capacitance calculated using this method is in good agreement with the experimental results. The method...
The partial charge-simulation method is presented for calculating the capacitance of the rectangular coaxial line with offset inner conductor. The capacitance calculated using this method is in good agreement with the experimental results. The method...
1988, 10(3): 218-227.
Abstract:
The optimal magnetized field distributions of variable polarization effect of ferrite are studied by using the coupled-wave theory and variation principle. Several kinds of optimal shapes of magnetized field are given. The theoretical calculation are...
The optimal magnetized field distributions of variable polarization effect of ferrite are studied by using the coupled-wave theory and variation principle. Several kinds of optimal shapes of magnetized field are given. The theoretical calculation are...
1988, 10(3): 228-237.
Abstract:
The canonical piecewise-linear method is used to analyse the nonlinear DC fault circuits and determine the potential at the preseleted test ports in the circuit. The method needs less storage capacity and has higher computing efficiency. It is a good...
The canonical piecewise-linear method is used to analyse the nonlinear DC fault circuits and determine the potential at the preseleted test ports in the circuit. The method needs less storage capacity and has higher computing efficiency. It is a good...
1988, 10(3): 238-243.
Abstract:
Main reflector module sharing technique for dual reflector antennas is pre-sened in this paper, which makes main reflectors with same focus but different aperture share one set of module by means of optimizing subreflectors. To optimize the subreflec...
Main reflector module sharing technique for dual reflector antennas is pre-sened in this paper, which makes main reflectors with same focus but different aperture share one set of module by means of optimizing subreflectors. To optimize the subreflec...
1988, 10(3): 244-251.
Abstract:
The lasertron is a kind of superpower microwave source, originated in1980 s. At present the lasertron is still under development. In this paper, the basic principle a introduced and one-dimensional analysis is presented. The computing model is rather...
The lasertron is a kind of superpower microwave source, originated in1980 s. At present the lasertron is still under development. In this paper, the basic principle a introduced and one-dimensional analysis is presented. The computing model is rather...
1988, 10(3): 252-257.
Abstract:
It is proposed to introduce a specially designed cavity: in the interaction region, the circular cross-section is kept, beyond which a slowly varying elliptical auxiliary transition section is used to suppress the unwanted modes. The cavity is so des...
It is proposed to introduce a specially designed cavity: in the interaction region, the circular cross-section is kept, beyond which a slowly varying elliptical auxiliary transition section is used to suppress the unwanted modes. The cavity is so des...
1988, 10(3): 258-262.
Abstract:
A new active C notch filter circuit with two operational amplifiers and five capacitors is presented. The circuit can fulfil the second-order lowpass, band-pass, band-stop and symmetrical band-stop functions. Its pole parameters Q and (0 can be adjus...
A new active C notch filter circuit with two operational amplifiers and five capacitors is presented. The circuit can fulfil the second-order lowpass, band-pass, band-stop and symmetrical band-stop functions. Its pole parameters Q and (0 can be adjus...
1988, 10(3): 263-268.
Abstract:
In this paper, the dispersion equations of the waveguide filled with N dielectric slabs in E-plane are presented. The characteristics of the dispersion equations of the waveguide filled with N dielectric slabs in E-plane are studied. The effective di...
In this paper, the dispersion equations of the waveguide filled with N dielectric slabs in E-plane are presented. The characteristics of the dispersion equations of the waveguide filled with N dielectric slabs in E-plane are studied. The effective di...
1988, 10(3): 269-272.
Abstract:
The problem of wave propagation in moving optical waveguide is solved by using the Lorents transformation, that is, the solutions of the problem are derived first in the reference frame in which the optical waveguide is at rest, next the obtained res...
The problem of wave propagation in moving optical waveguide is solved by using the Lorents transformation, that is, the solutions of the problem are derived first in the reference frame in which the optical waveguide is at rest, next the obtained res...
1988, 10(3): 273-278.
Abstract:
According to the transverse resonance method the dispersion relation is derived based on the analysis of fringe equivalent circuit by using Babinet principle. The attenuation constant causing by radiation is obtained. The explanation of the leakage w...
According to the transverse resonance method the dispersion relation is derived based on the analysis of fringe equivalent circuit by using Babinet principle. The attenuation constant causing by radiation is obtained. The explanation of the leakage w...
1988, 10(3): 279-284.
Abstract:
Some experimental results are reported and discussed. The n+p junction leakage currents and the MOS generation lifetimes of wafers pretreated by the 1G method can be improved by 1-3 and 1-2 orders of magnetitute respectively, while the yields of diod...
Some experimental results are reported and discussed. The n+p junction leakage currents and the MOS generation lifetimes of wafers pretreated by the 1G method can be improved by 1-3 and 1-2 orders of magnetitute respectively, while the yields of diod...
1988, 10(3): 285-288.
Abstract:
A new processing method in which the antireflective coating (AR) Si3N4 is deposite by LPCVD, at the same time, the Al-alloyed high low junction BSF is formed, is described. In the method, the procedure is simplified for fabricating high efficiency si...
A new processing method in which the antireflective coating (AR) Si3N4 is deposite by LPCVD, at the same time, the Al-alloyed high low junction BSF is formed, is described. In the method, the procedure is simplified for fabricating high efficiency si...
