资料介绍
阻抗匹配2§¤°t]
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Microwave & Communication Lab.
1
v±K§¤°t
Z0°êH¤A
Z0
ZL°-tü§A
Γ
ZL
wqbq-tü¤gY
(Reflection coefficient)Γ
Microwave & Communication Lab.
ZL 1 ~ Z L Z0 Z0 zL 1 Γ= = =~ = p + jq = Γ e jθ ZL + Z0 ZL zL + 1 +1 Z0
2
v±K§¤°t
(ò )
ZL ~ zL = O Z0 ~ z L = r + jxF¤gY
Z 0t -¤W A §ü A § @¤° ] Γ Γ =p+ jqC
∴ ( p + jq )(~ z L + 1) = ~ zL 1 z L + jq~ z L + p + jq = ~ zL 1 p~ z = 1 p jq [( p 1) + jq ]~
L
p 1 jq (1 + p ) + jq [(1 + p ) + jq ][(1 p ) + jq ] ~ = = zL = ( p 1) + jq (1 p ) jq (1 p ) 2 + q 2 (1 + p )(1 q ) q 2 + 2 jq = r + jx = 2 2 (1 p ) + q
Microwave & Communication Lab.
3
v±K§¤°t
(ò )
êóAêóAh
r= x= 1 p q r 1 2 + = p q ...(1) 2 2 r + 1 (1 p ) + q r +1
2 2 2 2
2q 1 1 2 ( ) + = 1 p q ...(2) 2 2 x (1 p ) + q x
2
2
Micr
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