Casio fx-4850P Manual do Utilizador Página 149

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148
程序目的 No.
最小損失匹配
3
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
步驟 鍵操作 顯示畫面 步驟 鍵操作 顯示畫面
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
m1(COMP) Mcl
1
,
6
(DSP/CLR)
5(Mcl) w E
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
/
Program [RUN]
2
kk
kk
kPRIME FACTOR :CO
MEASURE :CO
LOSS :CO
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
))w ZE ?
3 E
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
500 w Z1?
4
E
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
200 w R1 =
5
387.2983346
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
w R2 =
6
258.1988897
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
w LMIN =
7
8.961393328
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Z0 R2 Z1
><
R1
程序用紙
Z0 Z0
––+ –– 1 [dB]
Z1 Z1
Z 1
R1 = Z0 1– –––
Z
0
Z 1
R2 = –––––––
Z1
1 – ––
Z0
說明
求與Z0 Z1相匹配,且損失最少的R1R2值。(Z0 > Z1)
最小損失
Lmin = 20·log
範例
Z
0=500 Z1=200時,計算R1 R2Lmin
準備與操作
為程序的執行設定模式。
儲存列於下一頁上的程序。
按如下所示步驟執行程序。
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