Module 7.1 Smith Chart
參考阻抗 \(Z_{0}\)(refernce impedance) : \(\Omega\)
參考導納 \(Y_{0}\)(refernce admittance) : \(mS\)
負載阻抗 \(Z_{L}\) = + j \(\Omega\)
" =>Normalized impedance z: + j
負載導納 \(Y_{L}\) = + j \(mS\)
=> Normalized admittance y: + j
反射係數 \(\Gamma_{L}\): \(\angle\) ° ( 顯示 \(\left|\Gamma\right|\) )  
(reflection coefficient) ( \(\Gamma_{L} = \left|\Gamma\right|\ * \angle \theta_{\Gamma}\) )
電壓駐波比 \(VSWR\):
(voltage standing wave ratio)

Introduction:

藉由選擇不同的Chart去觀察:
  負載阻抗 \(Z_{L}\)
  負載導納 \(Y_{L}\)
  反射係數 \(\Gamma_{L}\)
在Smith Chart上的位置和變化,以及\(Z_{L}\)、\(Y_{L}\)、\(\Gamma_{L}\)和\(VSWR\)的關係。

Parameters:

Load impedance: \(Z_{L} = R_{L} + jX_{L}\)
Normalized impedance: \(z = Z_{L} / Z_{0} = r + jx\)
Load admittance: \(Y_{L} = G_{L} + jB_{L}\)
Normalized admittance: \(y =Y_{L} / Y_{0} = g + jb\)
Reflection coefficient : \(\Gamma_{L} = \left|\Gamma\right|\ \angle \theta_{\Gamma}\)
  a. \(\left|\Gamma\right|\):magnitude of  \( \Gamma_{L}, 0 \leqq \left|\Gamma\right|\ \leqq 1 \)
  b. \(\theta_{\Gamma}\):phase of \(\Gamma_{L}\)