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CHAPTER 5 Impedance Matching and Smith Chart

CHAPTER 5 Impedance Matching and Smith Chart

CHAPTER 5 Impedance Matching and Smith Chart

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A<br />

(3) General L-section matching network (complex to complex)<br />

Zs<br />

50 j25<br />

<br />

<br />

ZL<br />

25 j50<br />

<br />

f 2GHz<br />

z<br />

<br />

z<br />

<br />

z<br />

s<br />

L<br />

L<br />

Transmitter<br />

1<br />

j0.<br />

5<br />

0.<br />

5 j1<br />

* 0.<br />

5 j1<br />

zL<br />

*<br />

zL<br />

5-9<br />

complex Zs to complex ZL : conjugate matching<br />

s<br />

2011-12 H.-R. Chuang EE NCKU<br />

Zs<br />

A,<br />

B,<br />

C,<br />

D (four paths)<br />

z z<br />

B D<br />

*<br />

Zs ZL<br />

ZL<br />

C<br />

* L

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