Abstract: In this paper, the horizontal radiation characteristics of dipole and loop antennas adjaeent to a rectangular cylinder reflector are calculated by the application of GTD. The magnitudes of the direct field, the reflected field and the diffracted fiel...
Abstract: In this paper, the two dimensional problems of the diffraction of the electromagnetic waves by a perfect eonductor are discussed, using the Savin s mapping function of the perturbed form to the boundary. The general method and asymptotic formulas use...
Abstract: The existing methods for designing two-dimensional digital filters are outlined anda new methodcomposite methodis proposed. This method has following advan-tages: (1) its computation cost is low; (2) it is easy to acquire lineur phase performance; ( ...
Abstract: In this report, interdiffusion of the p-IuP with Au-Zn Ti/Au, Pd/Au, and Ti/Pd/ Au at interface has been investigated by Auger electron spectroscopy and electron spectroscopy for chemical analysis. The surfaco morphology for the heat treatment are ob...
Abstract: A new technique called MOS constan t current quasistatic small-signal technique is given. Using this technique the quasistatic capacitance, high frequency capaeitanee and semiconductor surface potential of MOS capacitor can be measured simultaneously...
Abstract: A sensitive linear sensor, which is suitable for ineasuring humidity of elastic dielectric on conveyer, is presented. A programmable counter is used to improve the measuring accuracy. The dynamic test of this system has been completed on the conveyer...
Abstract: In this paper, an assupmtion to explain emission properties of the La-WC cathode and its resistance to poisoning of oil vapour is presented and was demonstrated by experiments. In the operating temperature range of the La-WC cathode, lanthanum would ...
Abstract: The field matching method for calculating the capacitance of a rectangular coaxial strip transmission line is presented. The method is not only simple, easy to use and commonly adaptive but also efficient for reducing the calculating error.
Abstract: The majority of literatures dealing with digital signal processing ignore the effect of oscillator instabilities. This will in some cases lead to an inadmissible design mistake.In this paper, Monte Carlo computer simulation is used to estimate the ef...
Abstract: The limitation of far region Fresnel-Kirchhoff formula in transient problem is diseussed. Under the excitation of an impulse, the radiation field has to be evaluated in terms of precise Fresnel-Kirchhoff formula; otherwise, some important transient f...
Abstract: In this paper, it is clarified that as the term, the impulse response of aperture antennas in the f ar-field region, is used, the far-field region is referred to the actual signal exciting an antenna, not to the Dirac delta function exerted on an ant...