变换伽辽金法对具有梯形截面脊形光波导的本征模式特性作了分析。
The mode dispersion characteristics and cut-off properties of rib waveguide with trapezoidal cross section are investigated.
与普通矩形波导相比，脊波导具有工作频带宽、尺寸小、等效特性阻抗低等特点。
Compare to the normal rectangular waveguide, ridge waveguide has the character of broader bandwidth, smaller dimension, lower equivalent characteristic impedance, etc.
基于小波脊算法，提出了从相量测量装置的实测数据中提取电力系统时变振荡特性的新方法。
Based en a wavelet ridge algorithm, a novel approach is presented for extracting time-variant oscillation performance from data measured by phasor measurement units.
由于双脊喇叭天线不仅具备超宽带特性，还具有体积小、增益和口径效率高等优点，因此本文选双脊喇叭天线作为所要设计的超宽带天线。
Since the double-ridged horn antenna owns many seductive characteristics, such as ultra broadband, relatively small size, high calibre efficient and gain etc.
而在脊区填充非均匀介质以后，截止波长更长，频散特性更好等。
More, the dispersion characteristic is better, the cut-off wavelength is longer when loaded inhomogeneous dielectric in ridge area, etc.
应用有限元分析方法计算了对称四脊矩形波导TE模式的传输特性，即截止波长和场结构图传输特性。
This paper describes the application of finite element method for obtaining the TE mode′s cutoff wavelength and the field pattern of symmetric quadruple-ridged rectangle waveguide.
分析了小波脊线与信号瞬时频率的关系，提出了基于小波脊线的刮水器电动机机械特性测试新方法。
The relationship between wavelet ridge and instantaneous frequency is analyzed and a new method of the mechanical characteristic test of the wiper motor based on wavelet ridge algorithm is proposed.
考虑到脊波导器件在使用和制造中可能产生的结构变形，论文重点研究了变形对常规单脊波导与双脊波导传输特性的影响。
Another important contribution of this thesis is in studying the dependence of waveguide deformation on the transmission characteristics of normal single - and double-ridged waveguides.
计算了脊的尺寸变化时的截止波长和单模带宽，给出了主模场结构图以及变形对截止波长和单模带宽影响的关系曲线，并分析了传输特性随对称脊波导结构尺寸变化的情况。
It calculates the cutoff wavelength and single-mode bandwidth at the change of the ridge dimensions, gives the dominant mode field pattern and the corresponding curve of the deformation vs.
天线元具有调整与脊形部分相对应的天线特性的脊形元单元(21)、和用于电磁波辐射的辐射元单元(22)。
The antenna element has a ridge element unit (21) for adjusting antenna characteristic corresponding to a ridge portion and a radial element unit (22) for electromagnetic wave radiation.
该算法保留了小波ICA的特点，同时由于脊波可以有效表述直线的特性，提高了具有明显线特征的混合图像的分离精度。
The first is based on ridgelet transform, it inherits the advantage of wavelet ICA and can improved the separation performance for the mixed images with notable line feature.
在此基础上得出了脊波导结构调制器中缓冲层厚度对特征阻抗和有效介电常数的影响特性。
On the basis of this calculation, the impact of the SiO2 buffer layer thickness on the characteristic impedance and dielectric constant in the modulator with a ridge structure is obtained.
在此基础上得出了脊波导结构调制器中缓冲层厚度对特征阻抗和有效介电常数的影响特性。
On the basis of this calculation, the impact of the SiO2 buffer layer thickness on the characteristic impedance and dielectric constant in the modulator with a ridge structure is obtained.
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