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1984 Vol. 6, No. 3
Display Method:
1984, 6(3): 181-188.
Abstract:
The operator method for the determination of dyadic Green s functions is presented by the extention of concepts of vector space to dyadic space, and the new expression for the dyadic magnetic wave equation is derived strictly by using the theory of d...
The operator method for the determination of dyadic Green s functions is presented by the extention of concepts of vector space to dyadic space, and the new expression for the dyadic magnetic wave equation is derived strictly by using the theory of d...
1984, 6(3): 189-199.
Abstract:
An analysis method of microwave four-port circuits by using the transfer matrix is presented. The mathematical models of several basic circuit elements and expressions of net-work functions for microwave four-port circuits are given. Furthermore a sm...
An analysis method of microwave four-port circuits by using the transfer matrix is presented. The mathematical models of several basic circuit elements and expressions of net-work functions for microwave four-port circuits are given. Furthermore a sm...
1984, 6(3): 200-205.
Abstract:
An effect of the transfer noise in the CCD on the output signal-to-noise ratio of the cor-relator is analyzed theoretically. The efficiency of multichannel parallel operation for the CCD is designated. Finally, the experimental results of double chan...
An effect of the transfer noise in the CCD on the output signal-to-noise ratio of the cor-relator is analyzed theoretically. The efficiency of multichannel parallel operation for the CCD is designated. Finally, the experimental results of double chan...
1984, 6(3): 206-213.
Abstract:
A fabrication procedure for large area germanium photodiodes has been demonstrated and the measuring methods on characteristics of spectral response, quantum efficiency, fre-quency response and I-V for this device have been described. At 1.3 m wavele...
A fabrication procedure for large area germanium photodiodes has been demonstrated and the measuring methods on characteristics of spectral response, quantum efficiency, fre-quency response and I-V for this device have been described. At 1.3 m wavele...
1984, 6(3): 214-219.
Abstract:
The effect of the monochromaticity of relativistic electron beam's energy on the small signal gain of free electron lasers is analyzed. For a certain pumping field, there is a critical energy divergency, over which the small signal gain will become n...
The effect of the monochromaticity of relativistic electron beam's energy on the small signal gain of free electron lasers is analyzed. For a certain pumping field, there is a critical energy divergency, over which the small signal gain will become n...
AN INVESTIGATION ON THE NON-INTERCEPTING GRIDDED ELECTRON GUN WITH A SHADOW GRID EMBEDDED IN CATHODE
1984, 6(3): 220-225.
Abstract:
A kind of non-intercepting gridded gun is described, in which an annular grid-mesh type shadow grid is immediately embedded in the cathode. A simplified two-dimensional ma-thematical model is presented for computer aided design. Through investigation...
A kind of non-intercepting gridded gun is described, in which an annular grid-mesh type shadow grid is immediately embedded in the cathode. A simplified two-dimensional ma-thematical model is presented for computer aided design. Through investigation...
1984, 6(3): 226-234.
Abstract:
Electron initial velocity distribution of two kinds of parctical thermionic cathodes are studied with pre-acclerating-post-deaccelerating type retarding field method. Based on the theory of dynamical surface emission centers, the phenomenon, i.e. the...
Electron initial velocity distribution of two kinds of parctical thermionic cathodes are studied with pre-acclerating-post-deaccelerating type retarding field method. Based on the theory of dynamical surface emission centers, the phenomenon, i.e. the...
1984, 6(3): 235-241.
Abstract:
Based on the equation of the Fresnel-Kirchhoff scalar diffraction field, the expressions of the impulse response of one-dimensional end-fed array antenna and the impulse responses of the antenna to the narrow-band radio-frequency signals and their en...
Based on the equation of the Fresnel-Kirchhoff scalar diffraction field, the expressions of the impulse response of one-dimensional end-fed array antenna and the impulse responses of the antenna to the narrow-band radio-frequency signals and their en...
1984, 6(3): 242-246.
Abstract:
According to the recently developed travelling wave interaction concepts, a TW FET with suitable electrode structure for a monolithic realization has been designed and investi-gated by a microstrip line hybrid model together with individual FETs. A c...
According to the recently developed travelling wave interaction concepts, a TW FET with suitable electrode structure for a monolithic realization has been designed and investi-gated by a microstrip line hybrid model together with individual FETs. A c...
1984, 6(3): 247-249.
Abstract:
The results of a study in the diffusion length of holes in a-Si:H by measuring the sur-face photovoltage of the metal (Ni) Schottky barrier is reported. The change of field-assis-ted hole transport with bias light was observed. It is believed that me...
The results of a study in the diffusion length of holes in a-Si:H by measuring the sur-face photovoltage of the metal (Ni) Schottky barrier is reported. The change of field-assis-ted hole transport with bias light was observed. It is believed that me...
1984, 6(3): 250-254.
Abstract:
In this paper the ability of antireflection film to withstand the destructive effect of Laser radiation in the neighborhood of 10m is investigated. Some methods for improving the destructive threshold of the antireflection films are proposed.
In this paper the ability of antireflection film to withstand the destructive effect of Laser radiation in the neighborhood of 10m is investigated. Some methods for improving the destructive threshold of the antireflection films are proposed.
1984, 6(3): 255-258.
Abstract:
A SmPrCo PM focusing system for 3 cm klystron is reported. The magnetic gap of the magnetic system is 67.3 mm. The maximum field intensity in the gap is 2700Gs. The fluc-tuation of the field intensity is 4%, the weight of the SmPrCo magnet is only 5 ...
A SmPrCo PM focusing system for 3 cm klystron is reported. The magnetic gap of the magnetic system is 67.3 mm. The maximum field intensity in the gap is 2700Gs. The fluc-tuation of the field intensity is 4%, the weight of the SmPrCo magnet is only 5 ...
1984, 6(3): 259-261.
Abstract:
In this paper, a new scheme for designing a 8 mm high power pulse coaxial magnetron Is proposed. Design equations and experimental results are given.
In this paper, a new scheme for designing a 8 mm high power pulse coaxial magnetron Is proposed. Design equations and experimental results are given.
