Page 239 - 30105-2003 การวิเคราะห์วงจรอิเล็กทรอนิกส์ความถี่สูง

231
6.

#

ก 6
" " ! 4 ' ก
2 Z (# 6
in

$ :ก ! (6; !ก 3 '%

(
r r
R = , X ip = ; !$ − X ip = X C ) (6.9a)
ip
cosθ sinθ ip
(
θ
R = r cos , X = r sin ; !$ − X = X C is ) (6.9b)
θ
is
is
is
(4' R "$ " " ! 4
ip
'
X "$ " ก
2
ip
R "$ " " ! 4 :ก !
is
X "$ " ' ก
2 :ก !
is
2
( r bb′ + r b e ′ ) + ( C r rω T bb b e ′ ) 2
′
r =
2
1 + ( C r ) 2
ω
T b e ′
θ = − 1  ω C r r 
′
T bb b e ′
1 tan  
 r bb′ + r b e ′ 
ω
θ = tan − 1 ( C r )
2 T b e ′
θ θ − θ
=
1 2
!ก Z Z = R ( − JX )}
in in { ip C ip
!ก Z :ก ! Z = R − JX
in in is C is
ก # 4' 6.5 ก. ! 7 '( !ก Z 3
out
 1 
Z = R − JX ) =  R 
out ( out C ce out
ω
 J C ce 
g V 7$ !'" ! 4 I (6 # ! ก ! 7 4 % 3
m b e ′
ก # 4' 6.5 . R1 ก ! ;2 Z ก ( R
in ip

C
!$ ก ก C 5 6; L ! !$ ก ก

2"
ip ip mi
' ก
2กN
ก ก
! Z
$ 1'( R ( '( ! 7 '( !ก 3
in ip
1
ω L mi =
ω C ip
ω 2 L C = 1
mi ip
1
2
ω =
L C
mi ip
1 1
ω = =
L C L C
mi ip mi ip
ก

ก
ก