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数学计算 ＦＤＴＤ !-- Fortran code for FDTD with Berenger PMLs, version 1.0, May 1999 !-- by Jos Bergervoet.
ＦＤＴＤ
!-- Fortran code for FDTD with Berenger PMLs, version 1.0, May 1999
!-- by Jos Bergervoet.
!-- Plot field and/or Poynting vector S around radiating linear dipole
matlab例程 Feeding antennas with proper signals can be difficult. The signal is often described as a voltage, a
Feeding antennas with proper signals can be difficult. The signal is often described as a voltage, and voltages are not well defined in electromagnetic wave formulations. There are several tricks to model voltage generators in such situations, and one is the magnetic frill. This model shows the basi ...
matlab例程 Feeding antennas with proper signals can be difficult. The signal is often described as a voltage, a
Feeding antennas with proper signals can be difficult. The signal is often described as a voltage, and voltages are not well defined in electromagnetic wave formulations. There are several tricks to model voltage generators in such situations, and one is the magnetic frill. This model shows the basi ...
Linux/uClinux/Unix编程 DDA使用教程
DDSCAT 7.3 is a freely available open-source Fortran-90 software package applying the “discrete
dipole approximation” (DDA) to calculate scattering and absorption of electromagnetic waves by targets
with arbitrary geometries and complex refractive index. The targets may be isolated entities (e.g., ...
通讯/手机编程 This m-file displays the time waveform for the Gaussian pulse function and the first and second deri
This m-file displays the time waveform for the Gaussian pulse function and the first and second derivatives of the Gaussian pulse function for a 0.5 nanosecond pulse width. Other values of pulse widths may be used by changing fs,t,t1. The program uses the actual first and second derivative equations ...
技术资料 使用PCB设计天线 对于2.4G天线设计详细描述
v> 目前最常见的蓝牙天线有偶极天线（dipole antenna）,倒 F 型天线（planar inverted F  anternna）、曲流线型天线（meander line antenna）、微小型陶瓷天线（ceramic antenna）、液晶 聚合体天线（lcp）和棒状天线（2.4G 频率专用）等。由于这些具有近似全向性的辐射场型 以及结构简单、制作成本低的优点，所以非常 ...
无线通信 智能天线技术在基站中的应用
为了能够满足基站易于选址、优质快速的建站要求和易维护、低成本、高可靠的运行要求，本文对以方舱来实现一体化结构基站做出一番探讨。从系统设计的观点阐述了移动通信高性能基站天线设计的几个关键问题，介绍了智能天线技术在基站中的应用，并且用HFSS软件仿真了一种新型的对称阵子天线，该天线驻波比小于2的带宽可以达到6 ...