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Smith chart usage guide

  • 2013-09-29
  • 891.66KB
  • Points it Requires : 2

              Smith_chart_tool11A-1Appendix 11A Smith Chart2004EMcom LAB, EE NCKU 11A-22004EMcom LAB, EE NCKU 11A-3 R. Ludwig, RF Circuit Design: Theory & Applications (Ch 3, 8)2004EMcom LAB, EE NCKU 11A-4zZ- & Y-Smith Chart and Combined ZY- Smith Chartz in = 1 + j1 = 2 ej( π/4) y in = ( z in )-1 =1 e- j( π/4) 2 1 =1 j 2 22004EMcom LAB, EE NCKU 11A-5zImpedance Effect of Series & Shunt L & C in Smith ChartDC Bzin=1 (Zin=50) => EgA=50/31.25 =1.6 => AFig. 3-18 Computing of the normalized input impedance of the T network for a center frequency f = 2 GHz2004 EMcom LAB, EE NCKU 11A-61. êpqPGz p pó z ¨DX 1 AêpqPáA]qP Z-Smith chart ¤W§Ah|uL ¤§°jωL AG constant- r circle °w ±à§¤ ê-|W[ (pA 2 )CL -¤§èkG (¨ 1) ZL = RL + jX L = z L × Z 0 = (rL + jx L ) × Z 0 gLêpqP……             

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