天线方向外语ppt

1、LOGO Power Dividers and AntennanEnglish name： JohmnChinese name： 王克强王克强LOGOStructureu The first part: A simple introdutionuThe second part: Power DividersuThe third part : Antenna uThe fourth part: Follow-up Work 1.A Simple IntrodutionA simple background about my research (1) My teacher: Li Hao (2)M

2、y research :Power dividers and Antenna (3)Tool :HFSS Some basic principle Since the 19th century , microwave have made a great development with the usage of wireless communication . I believe that most of us have learn some knowledge about circuit which running in a low frequency. If the frequency i

3、ncreasing up to one hundreds million times a second ,then the microwave will be created. Microwave can transmit signal and energy . We can find microwave in every corner of our life such as our smart phone ,WiFi in our dormitory and so on Power dividers is used to divide the power of the microwave.

4、And a antenna is used to send and receive the microwave.2. POWER DIVIDERS (1)Power divider is the indispensable component of microwave equipments such as phased-array radar, multi-channel relay communication system and so on. As the name said that a power dividers has one microwave input and two thr

5、ee or four outputs ,then we can have a quantitative output.(2) In this part ,I will show you the power divider which I have made. But it unnecessary to show every step of how to make a power divider by hfss. It usually need 7 steps. they are: (a)set up solution type (b)set up unite (c)create3D modle

6、 (d)set up boundaries (e)set up frequency (f)analysis (g)Look at the results (3).Optimization Optimization is an important part when we create a model. Now we will optimize this power divider and make it the two outputs ratio is 3:13.Antenna (1) Antenna is used to send and receive microwave,and they

7、 usually have different forms according to different requirements,such as （2）Some technical terms about Antennau Average power平均功率 u Broadband 宽带 u Directivity 方向性 u Feeder line 馈线 u Gain 增益 u Loss (dB) 耗损（dB） u Mates with 匹配 u Output vswr 输出电压驻波比 u Wave over 波长 (4)analysis8.008.509.009.5010.0010.50

8、11.0011.5012.00FreqGHz-16.00-14.00-12.00-10.00-8.00-6.00-4.00dB(S(Port1,Port1)HFSSDesign1XYPlot1m1m2CurveInfodB(S(Port1,Port1)Setup1:SweepNameXYm110.0200 -10.0134m210.9200-9.99235.002.001.000.500.200.005.00-5.002.00-2.001.00-1.000.50-0.500.20-0.200.000102030405060708090100110120130140150160170180-170-160-150-140-130-120-110-100-90-80-70-60-50-40-30-20-10HFSSDesign1SmithChart1m1CurveInfoS(Port1,Port1)Setup1:SweepNameFreqAngMagRXm110.38000.61700.17661.4288+0.0056iTemporary work4、Follow-up W