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电子科技大学贾宝富博士微波电路与系统(一)第4讲Smith圆图第4讲内容4.1Smith圆图SmithChart||Zir+jx-jxr11jxrjxrZZZZoLoL11oLZZjxrzConstantRe[ZL]circlesConstantIm[ZL]circlescomplexplane1-1j-j||=1SmithChart等电阻圆等电抗圆1.051.05ri0()ri0.5()ri1()ri2()xi2()xi1()xi0.5()xi0.5()xi1()xi2()r0.1()r0.5()1.051.05rr0()rr0.5()rr1()rr2()xr2()xr1()xr0.5()xr0.5()xr1()xr2()i0.1()i0.5()SmithChartSmithChart4+jx-jxr=0r=1r=0.5r=2r=∞x=-1x=-2x=-0.5x=1x=0.5x=2|Γ|=0.5|Γ|=0.1|Γ|=1设计工具:smithchart.mcd4.1.1反射系数圆与相位射线4.1.2归一化阻抗圆4.1.3Smith阻抗圆图4.1.4Smith导纳圆图4.1.5圆图应用SmithChart7ZsZL设计工具:winsmith.exeSmithChart8Zo=50Zo=75ZLZs设计工具:SmithV2.00winsmith.exe与并联传输线长度有关圆心SmithChart9射频操1.串电感4.並电容2.串电容5.串传输线3.並电感射频操4.2传输线例题小结4习题4
本文标题:微波电路与系统(04)
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