重点

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628195223574.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628195254418.png
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F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628195356881.png

第一章 一节 基本振子的辐射

1.自由空间相移常数k

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628200150452.png

2.近区场

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628200414544.png

3、远区场（电基本振子为例）

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628200654565.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629143404397.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628200755540.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629143449358.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628200957553.png

4、辐射功率

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628200902590.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628201319984.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628201118822.png

5、方向函数

E面和H面
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628215829292.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628201630562.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628201842184.png
归一化方向函数
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628202146005.png

方向图

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629160628220.png

6、磁基本振子

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629143147588.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629143115193.png

6、零功率点和半功率点

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628202530468.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628202625838.png

7、方向系数

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628202807123.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628202854337.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628202925701.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628203035585.png

第一章二节 发射天线的电参数

1、天线效率

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628203330933.png

2、增益系数

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628203453478.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628203802302.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628203943548.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628204029897.png

3、天线极化

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628204334376.png

4、有效长度

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628204622133.png

第一章三节 互易定理和接收天线的电参量

1、互易定理

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628205210163.png

2、有效接收面积

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628205334829.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629142741172.png

第一章五节 天线阵的方向性

1、方向图乘积定理

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628205906564.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628205951409.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628205814524.png

元因子

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629145228166.png

2、均匀直线阵

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628210759123.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628211011346.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628211622837.png

第十章 电波传播

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628211904866.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629171036147.png
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F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629171955556.png

作业

1、基本振子、等相位面、电场、磁场、E面、H面、最大辐射的方向

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628181918558.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628182433383.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628182548506.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628182609253.png

2、辐射功率、场强

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628182908464.png

3、组合天线、基本振子、等效模型、方向图

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628183734263.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628184053790.png

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628184307550.png

4、半功率点、零功率点

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628184543479.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628184653471.png

5、辐射场、半功率点、零功率点

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628184831572.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628184928338.png

6、归一化方向函数、方向系数

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628185039955.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628185124347.png

7、 天线增益

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628185309513.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628185446508.png

8、半功率角、方向图

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628185554391.png

9、天线增益、有效接受面积

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628185807501.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628190045696.png

10、二半波振子、等幅同相、方向函数、方向图

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628190637235.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628190827281.png
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F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628191628825.png

11、二半波振子、等幅反向、方向函数、方向图

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628191716522.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628191806475.png
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F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628192139953.png
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F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628192237415.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628192259442.png

12、均匀直线阵、阵元距离

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628192647638.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628192840318.png

13、均匀直线阵、阵因子、方向图

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628192925366.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628193030973.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628193045571.png

考试内容

一 单项选择

波段范围，螺旋天线

二 名词解释

三 证明

证明没有副瓣

四 推导

方向乘积图

五 其余大题

方向函数

二元阵方向图函数（阵因子，元因子）

多元阵相位差

主瓣零点

公式

电基本振子E、H(远区场)

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629143404397.png

磁基本振子E、H

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629143147588.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629143115193.png

辐射功率

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628200902590.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628201319984.png

方向函数

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628201630562.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628201842184.png

方向系数

方向系数与输出功率、场强

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230630003048361.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628202925701.png

方向系数与归一化方向函数

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628203035585.png

增益系数

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628204029897.png

有效接收面积

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629142741172.png

方向图乘积定理

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628205906564.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230628205814524.png

阵因子

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629203141590.png

元因子

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629145228166.png

N很大均匀直线阵方向图参数

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629223815524.png

多元阵方向函数

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629211341486.png

极值点、零点

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629210819673.png

可视区

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629211139586.png

不产生栅瓣条件

边射阵

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629213854578.png

普通端射阵

应该是这个

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629215706881.png

强方向性端射阵

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629215208466.png

天线损耗

自由空间传播损耗

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629203802197.png

信道传播损耗

image-20230629203958500

路径传输损耗

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629172049556.png

电道传输损耗

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629171955556.png

天线接收功率

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629171000303.png

推导

方向图乘积定理

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629204748926.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629204854402.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629204916743.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629204955554.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629205031803.png

概念

方向函数

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629220612836.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629220359399.png

方向图

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629220659801.png

方向图参数

零功率点波瓣宽度

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629220836073.png

半功率点波瓣宽度

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629220918984.png

副瓣电平

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629220955161.png

前后比

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629221206881.png

方向系数

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629221310640.png

天线效率

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629221501002.png

增益系数

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629221540758.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629221635659.png

天线极化

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629221724502.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629221749164.png

有效长度

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629221827931.png

输入阻抗与辐射阻抗

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629221904227.png

频带宽度

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629222237975.png

有效接收面积

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629222707030.png

均匀直线阵

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629223016453.png

边射阵

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629223100147.png

普通端射阵

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629223141593.png

强方向性端射阵

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629223229521.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629223245402.png

镜像

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629214139038.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629214123399.png

螺旋天线

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629224201332.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629224301205.png

惠更斯源

F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629225226511.png
F/TYOPORA_Note/专业课/天线与电波/relative/image-20230629225313373.png

频段范围

毫米波：300~30GHz

厘米波：30~3GHz

分米波： 3000~300MHz

超短波: 300~30MHz

短波： 30~3MHz

中波： 3000~300kHz

长波 ： 300~30kHz

试卷

21

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20

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