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tianxian
关于蝶形宽带微带天线的设计
索引：蝶形宽带微带天线. 设计方案 排列效率
摘要：现在提出一种基于绝缘体衬底的有限长度的宽带微带天线的设计方法。这种方法快速、对计算精度要求较低，是建立在一蝶形天线进行二等分而形成的两个梯形天线的 。首先设计出单边的梯形部分，然后制作出相同的另一部分并在其顶点处将其连接。与理论计算相比在X波段上实验测量表现得很好。其有效带宽达到10.6％。
(One approach to an antenna book starts with a discussion of how antennas radiate. Beginning with Maxwell’s equations, we derive electromagnetic waves. After that lengthy discussion, which contains a lot of mathematics, we discuss how these waves excite currents on conductors. The second half of the story is that currents radiate and produce electromagnetic waves. You may already have studied that subject, or if you wish to further your background, consult books on electromagnetics.The study of electromagnetics gives insight into the mathematics describing antenna radiation and provides the rigor to prevent mistakes. We skip the discussion of those equations and move directly to practical aspects. )
- 2011-05-25 14:38:06下载
- 积分：1
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psool
PSO Code for finding out the minimum value of two variables in a function
- 2013-09-05 05:10:26下载
- 积分：1
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st
说明： matlab编的时频分析的小程序，可用于各种信号的时频分析(matlab series of time-frequency analysis procedures can be used for a variety of signal time-frequency analysis)
- 2012-09-06 10:08:22下载
- 积分：1
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game
易语言MusicBpm游戏源码例程程序结合易语言bass.dll，实现节奏录入功能。
(Easy language MusicBpm game source routine procedures combined with easy language bass.dll, to achieve rhythm entry function.
)
- 2017-03-08 10:29:37下载
- 积分：1
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CDMA2000-CRC
关于cdma2000 crc编码器的源程序(About cdma2000 crc source encoder)
- 2011-04-19 09:54:09下载
- 积分：1
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MATLAB_computing_simulation-
《matlab科学计算与可视化仿真宝典》书中所有实例代码(" Matlab scientific computing and simulation book" all instances of the code book)
- 2011-08-09 13:46:21下载
- 积分：1
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dailibai
描述倒立摆的仿真图，采用模糊控制的算法和最优控制策略。(The simulation diagram describing the inverted pendulum, fuzzy control algorithm and the optimal control strategy.)
- 2014-09-29 19:16:40下载
- 积分：1
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movingstar
一个会动的五角星,应用matlab软件编程。(A moving star，using matlab program.)
- 2013-09-08 15:30:36下载
- 积分：1
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XBPHfzz
谐波平衡，可以求解DUFFING方程等非线性动力学系统，并可以求解二阶微分方程(The harmonic balance can be solved by the nonlinear dynamical systems such as DUFFING equation, and can be solved by two order differential equations)
- 2015-05-29 22:09:32下载
- 积分：1
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《Matlab遗传算法工具箱及应用》源码
.附件结构: gatbx.rar: (1)gatbx-origin.zip; (2)gatbx-toolbox.rar; (3)gatbx-example.rar
2.调试所用Matlab版本是6.5，gatbx-toolbox是调试过程中使用的工具箱，有些热心的研友已经提供了该工具箱，之所以再贴一遍，是因为6.5版本下调试该工具箱会出现一些错误提示，在该版本中已经进行了改正，使用该工具箱只需要将压缩包下的gatbx和gatbxTest_fns加入到Matlab搜索路径即可，另外gatbx-origin是Sheffield大学提供的原始版本的工具箱，未做任何改动，两者可做比较之用
3.gatbx-example是算例调试源码和各算例的调试说明，大家可以对照原书进行比较
4.窃以为gatbx工具箱较之Matlab7新版下的gads工具箱更能让人熟悉和了解遗传算法的原理和计算过程，虽然在可视化方面不及gads
5.学习遗传算法如果首先用熟相关工具箱的话，能够先培养信心，然后更有兴趣去专研和了解具体的算法，如果就用现有的工具箱就能解决问题的话，不了解其详细的算法也未尝不可，毕竟不是每个研友都能向see_moonlight那样开发自己的工具箱吧,(Annex structure: gatbx.rar: (1) gatbx-origin.zip; (2) gatbx-toolbox.rar; (3) gatbx-Test_fns under the compression package need to be added to Mat. The lab search path can be done, and gatbx-origin is the original version of the toolbox provided by Sheffield University, without any changes, which can be used for comparison.
3. Gatbx-example is the source code of example debugging and the debugging instructions of each example. You can compare it with the original book.
4. It is assumed that the gatbx toolbox is better than the gads toolbox in the new version of MATLAB 7 in familiarizing and understanding the principle and calculation process of genetic algorithm, although it is less visualized than gads.)
- 2019-01-25 20:03:22下载
- 积分：1
