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1987 Vol. 9, No. 5
Display Method:
1987, 9(5): 385-394.
Abstract:
The concepts of power waves, exchangeable power, power wave reflection coefficients and generalized scattering parameters are explained, and some extensions are made. Several examples for applications are cited. They illustrate that these tools are v...
The concepts of power waves, exchangeable power, power wave reflection coefficients and generalized scattering parameters are explained, and some extensions are made. Several examples for applications are cited. They illustrate that these tools are v...
1987, 9(5): 395-403.
Abstract:
A program developed for analyzing general N-phase SC circuits is described. The program can perform the time-domain, frequency-domain and sensitivity simulation, the multiple objective optimization, and the calculation of the transfer poles of SC cir...
A program developed for analyzing general N-phase SC circuits is described. The program can perform the time-domain, frequency-domain and sensitivity simulation, the multiple objective optimization, and the calculation of the transfer poles of SC cir...
1987, 9(5): 404-412.
Abstract:
A high precision logarithmic amplifier with wide passband is achieved by using the charge and discharge of RC and the method of pulse-width modulation. It can be used in the astronomy, astronavigation, accurate measurement, communication etc. The the...
A high precision logarithmic amplifier with wide passband is achieved by using the charge and discharge of RC and the method of pulse-width modulation. It can be used in the astronomy, astronavigation, accurate measurement, communication etc. The the...
1987, 9(5): 413-419.
Abstract:
The problems of adaptive nonparametric detectors are considered. The major reason behind the increasing engineering interest in nonparametric signal detectors is their ability to maintain CFAR (Constant-False-Alarm-Rate) at the detector output for a ...
The problems of adaptive nonparametric detectors are considered. The major reason behind the increasing engineering interest in nonparametric signal detectors is their ability to maintain CFAR (Constant-False-Alarm-Rate) at the detector output for a ...
1987, 9(5): 420-427.
Abstract:
Clean Si (100) and (111) surfaces produced by the Ar+ ion bombardment and high temperature annealing techniques, and the epitaxial growth of nickel silicides on them at room temperature using molecular beam method are studied by reflection high energ...
Clean Si (100) and (111) surfaces produced by the Ar+ ion bombardment and high temperature annealing techniques, and the epitaxial growth of nickel silicides on them at room temperature using molecular beam method are studied by reflection high energ...
1987, 9(5): 428-434.
Abstract:
The control of Hg pressure is a major problem of LEP growth of HgCdTe. In this paper the lost of Hg and its affections and control in open tube sliding LEP system are analysed theoretically. A unique method of controlling Hg pressure, called pseudo-b...
The control of Hg pressure is a major problem of LEP growth of HgCdTe. In this paper the lost of Hg and its affections and control in open tube sliding LEP system are analysed theoretically. A unique method of controlling Hg pressure, called pseudo-b...
1987, 9(5): 435-440.
Abstract:
The dark defects in InGaAsP/InP DH LEDs are observed with an infrared line scanner. The dark structure appears before aging and it exists mainly in the form of dar kspot defect. The effect of the variety and concentration of the doping for p-InP conf...
The dark defects in InGaAsP/InP DH LEDs are observed with an infrared line scanner. The dark structure appears before aging and it exists mainly in the form of dar kspot defect. The effect of the variety and concentration of the doping for p-InP conf...
1987, 9(5): 441-450.
Abstract:
The eigen-frequency of the double-reentrant cavity is computed by classical method of the field matching. The results show that for the double-reentrant cavity with regular drift region, this method is superior to the others in higher accuracy and le...
The eigen-frequency of the double-reentrant cavity is computed by classical method of the field matching. The results show that for the double-reentrant cavity with regular drift region, this method is superior to the others in higher accuracy and le...
1987, 9(5): 451-457.
Abstract:
The high and low density sandwich CsI photocathodes have been developed and optimized to yield relatively stable and effecient systems for photon detecting in the 0.1-10 keV region. For sandwich CsI photocathodes, the photon detecting effeciency is 2...
The high and low density sandwich CsI photocathodes have been developed and optimized to yield relatively stable and effecient systems for photon detecting in the 0.1-10 keV region. For sandwich CsI photocathodes, the photon detecting effeciency is 2...
1987, 9(5): 458-464.
Abstract:
Using the priciple of electron cyclotron resonance, the microwave plasma with high degree of ionization and activity is obtained under the lower pressure from 10-3 to 10-4 Pa. In this paper, the influences of the microwave input power and gas pressur...
Using the priciple of electron cyclotron resonance, the microwave plasma with high degree of ionization and activity is obtained under the lower pressure from 10-3 to 10-4 Pa. In this paper, the influences of the microwave input power and gas pressur...
1987, 9(5): 465-468.
Abstract:
When the operating mode wave generated in a gyrotron is going through the output window section, in which the undesired scattering modes that may disturb the normal operating of gryo-tron can be excited by the discontinuities. The transmitting proper...
When the operating mode wave generated in a gyrotron is going through the output window section, in which the undesired scattering modes that may disturb the normal operating of gryo-tron can be excited by the discontinuities. The transmitting proper...
1987, 9(5): 469-472.
Abstract:
The stirless method and the electrophilic corrosive reagent is used for etching of the glass-core of Pb glass microchannel plate. The etching quality is examined by means of SEM and EDX, and it shows that there are no residues of the core glass. A re...
The stirless method and the electrophilic corrosive reagent is used for etching of the glass-core of Pb glass microchannel plate. The etching quality is examined by means of SEM and EDX, and it shows that there are no residues of the core glass. A re...
1987, 9(5): 473-476.
Abstract:
A pile-up masking technique using the conventional optical lithography and a two-step or three-step evaporation process is developed to fabricate the variable thickness superconducting microbridges of submicron. The l-V characterise of the microbridg...
A pile-up masking technique using the conventional optical lithography and a two-step or three-step evaporation process is developed to fabricate the variable thickness superconducting microbridges of submicron. The l-V characterise of the microbridg...
1987, 9(5): 477-480.
Abstract:
A new method for patterns making by using electron beam imaging in SiO2 film on silicon substrate is presented. The electron beam images in SiO2 film can form not only positive patterns but also negative patterns by using HF vapor etching and reactiv...
A new method for patterns making by using electron beam imaging in SiO2 film on silicon substrate is presented. The electron beam images in SiO2 film can form not only positive patterns but also negative patterns by using HF vapor etching and reactiv...
