主要内容

charge

金属或介电天线或阵列表面的电荷分布

所有的页面崩溃

Syntax

充电（对象，频率）
C =电荷（对象，频率）
[C，P] =电荷（对象，频率）
收费（object,frequency,'dielectric')
c =电荷（object,frequency,'dielectric')
c =电荷（___，名称，值）

Description

example

收费（object,frequency)在指定频率下计算并绘制在天线或阵列对象表面表面上电荷的绝对值。

example

c=电荷（object,frequency)returns a vector of charges in C/m on the surface of an antenna or array object, at a specified frequency.

[c,p] =电荷（object,frequency)returns a vector of charges in C/m on the surface of an antenna or array object, at a specified frequency and at the point at which the charge calculation was performed.

example

收费（object,frequency，“介电”）calculates and plots the absolute value of charge at a specified frequency value on the dielectric face of the antenna or array.

c=电荷（object,frequency，“介电”）returns thex,y,zcomponents of the charge on the dielectric surface of an antenna or array object, at a specified frequency.

c=电荷（___,Name,Value)calculates the charge on the surface of an antenna using additional name-value pairs.

Examples

collapse all

打开实时脚本

计算和绘制以70MHz频率的弓形天线上的电荷分布。

h = bowtieTriangular; charge (h, 70e6);

图包含一个轴对象。The axes object with title Charge distribution contains 3 objects of type patch.

打开实时脚本

计算70 MHz频率线性阵列的电荷分布。

h = linearArray; h.NumElements = 4; C = charge(h,70e6);
打开实时脚本

Create a microstrip patch antenna using'FR4'as the dielectric substrate.

d = dielectric('FR4'); pm = patchMicrostrip('长度',75e-3,'Width'，37e-3，...'GroundPlaneLength',120e-3,“地面平面”,120e-3,...'Substrate'，d）
PM =带有特性的贴剂：长度：0.0750宽度：0.0370高度：0.0060底物：[1x1介电]地面平面长度：0.1200地面平面图：0.1200 PatchCenterOffth：PatchCenterOffs：[0] faceoffset：[0] fefoffset：[0] fefoffs：[-0.0187 0]托管：[-0.0187]托管：[-0.0187]托管：[1x1 Metal]：[1 0 0]负载：[1x1 lumpedelement]
show(pm)

图包含一个轴对象。The axes object with title patchMicrostrip antenna element contains 6 objects of type patch, surface. These objects represent PEC, feed, FR4.

Plot the charge distribution on the antenna at a frequency of 1.67 GHz.

图电荷（PM，1.67E9，'dielectric')

图包含一个轴对象。The axes object with title Charge distribution contains 2 objects of type patch.

打开实时脚本

Create a default pifa (planar inverted F antenna).

ant = pifa;

Visualize the charge distribution on the pifa antenna in log10 scale.

充电（ANT，1.75E9，'规模','log10')

图包含一个轴对象。带有标题电荷分布的轴对象（log10）包含3个类型补丁的对象。

打开实时脚本

创建默认的圆柱电介质谐振器天线。绘制天线在1GHz处的电荷分布'Slicer'参数设置为'on'.

ant = draCylindrical('ResonatorRadius',0.01); charge(ant,1e9,'Slicer','on')

Figure contains an axes object and other objects of type uipanel. The axes object with title Charge distribution contains 4 objects of type patch.

SelectEnable slicer Mode. Then select a plane for the slice underOrientation.

Click on the plot and select a region to hide.

Click隐藏选定的区域查看所需的切片。

Input Arguments

collapse all

天线或数组对象，指定为标量。

Frequency used to calculate charge distribution, specified as a scalar in Hz.

例子：70e6

Data Types:double

Name-Value Arguments

将可选的参数对Name1=Value1,...,NameN=ValueN, whereNameis the argument name and价值是相应的值。名称值参数必须在其他参数之后出现，但是对的顺序并不重要。

Before R2021a, use commas to separate each name and value, and encloseNamein quotes.

例子：'规模','log10'

Scale to visualize the charge distribution on the surface of the antenna, specified as a string or a function. The string values are:'linear','log','log10'. By default, the value is'linear'. The function can be of any mathematical function such aslog,log10,cos, orsin.

Data Types:char|功能

Flag to enable or disable plot interactivity, specified as'on'或者'离开', or as numeric or logical1(true)或者0(false). Setting this flag to1或者'on'用切片机面板打开一个图，您可以在其中切片并查看沿着图的所需横截面XY-,YZ-， 和xz-planes. Setting this flag to0或者'离开'打开没有切片机面板的情节。

Data Types:string|logical

Output Arguments

collapse all

Complex charges, returned as a 1-by-nvector in C/m. This value is calculated on every triangle mesh or every dielectric tetrahedron face on the surface of an antenna or array.

笛卡尔坐标代表网格中每个三角形的中心nreal matrix.

版本历史

在R2015a中引入

See Also

|