天线输入阻抗的英文

• aerial feed impedance
• antenna feed impedance
• antenna input impedance
• input impedance of an antenna

• "天线"英文翻译    antenna; aerial; antenna wir ...
• "输入"英文翻译    import
• "阻抗"英文翻译    impedance
• "高输入阻抗" 英文翻译 :    high input impedance
• "声输入阻抗" 英文翻译 :    acoustic input impedance; input acoustic impedance
• "输入阻抗" 英文翻译 :    i ut impedance; i ut resistance; impedance, input; input impedance; input resistance
• "天线输入" 英文翻译 :    antenna input
• "闭环输入阻抗" 英文翻译 :    closed loop input impedance
• "单端输入阻抗" 英文翻译 :    single ended input impedance
• "等效输入阻抗" 英文翻译 :    equivalent input impedance
• "短路输入阻抗" 英文翻译 :    short circuit input impedance
• "共模输入阻抗" 英文翻译 :    common-mode input impedance
• "开路输入阻抗" 英文翻译 :    open-circuit input impedance
• "内部输入阻抗" 英文翻译 :    internal input impedance
• "网络输入阻抗" 英文翻译 :    network input impedance
• "微分输入阻抗" 英文翻译 :    differential-input impedance
• "栅极输入阻抗" 英文翻译 :    grid input impedance
• "天线输出阻抗" 英文翻译 :    antenna output impedance
• "输入电阻输入阻抗" 英文翻译 :    input resistance
• "对称天线输入" 英文翻译 :    symmetrical antenna input
• "天线输入导纳" 英文翻译 :    antenna feed-point admittance; input admittance of an antenna
• "天线输入电路" 英文翻译 :    antenna input circuit
• "天线输入功率" 英文翻译 :    antenna input power
• "测量绕组输入阻抗" 英文翻译 :    input impedance of the measuring winding
• "等效差动输入阻抗" 英文翻译 :    equivalent differential input impedance

• Antenna input impedance
  天线输入阻抗
• Antenna feed impedance
  天线输入阻抗
• The variational theory in electromagnetics and its application in computing the characteristic impedance of conformal coaxial transmission lines are presented in this thesis . input impedance of wire antennas is also computed with a hybrid method of variational principles and the finite - difference time - domain method
  本文主要研究了电磁变分理论及其在共形同轴传输线特性阻抗的求解和与时域有限差分法相结合求线天线输入阻抗等方面的应用。
• The conformal microstrip antenna with some unique character has been applied in many fields , especialy on speedy objects . in this paper , an efficient fdtd algorithm is introduced to analyse the microstrip antenna . firstly , the fdtd formula in descartes coordinate system and in cylindrical coordinate system are obtained from the time _ dependent maxwell equations using the yee algorithm in a calculating region where the dielectric parameters are independent of time and space . the choice of the space discretization units and the time discretization interval are discussed which are decided by the accuracy and stability respectively . the shape and setup of the excitation source are discussed too . the excitation source is chosen to be gaussian pulse in shape . secondly , the mur ' s first - order and second - order boundary condition are deduced in cylindrical coordinate system . the methods of transforming radiation fields from near zone to far zone in the frequency domain and in the time domain are presented when fdtd is applied to analyse the characteristics of far zone . finally , three kinds of microstrip antennas are analysed . they are a slot antenna that lies on a plane ground of a microstrip , a slot antenna that lies on a cylindrical ground of a microstrip and a microstrip line _ fed aperture coupled stacked rectangular patch antenna in cylindrical coordinate system
  本文从麦克斯韦旋度方程出发，建立了笛卡儿坐标下无源空间中均匀无耗媒质的fdtd基本方程和圆柱坐标下无源空间中均匀无耗媒质的fdtd基本方程，详细讨论了fdtd法计算中时间步长和空间步长的选取原则以及激励源的类型和设置；推导了mur一阶和二阶边界条件在圆柱坐标下的差分格式；给出了在用fdtd法计算天线的远场辐射特性时必需采用的频域和时域近场远场变换技术；最后用fdtd法计算了平面微带缝隙天线、柱面共形微带缝隙天线和柱面共形微带层叠天线的输入阻抗和远区辐射场，并分析了天线的一些参数的变化对天线输入阻抗的影响，得出了一些有用的结论。