- , , . ... . 㳿 (10.10) (10.19), .
. , , , , , , - .
, . - (11.1), (11.7) (11.8). (). > 1, 㳿 (. (10.18) . 10.7). 㳿 , .
, , , ( , a l
). 㳿 .
璺 , , .
ֳ , : l/2, l/4 l/8.
, , : k l =(2p/l)(l/2)=p. ϳ (11.1) : Z = Z. n(l/2), n - . : n(l/2) - . .
, , ( ), n(l/2), n . ϳ 璺 . .
: k l =(2p/l)(l/4)=p/2; cos k l = 0; sin k l = 1. ϳ (11.7) :
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, . (12.1)
璺 - ,
n(l/4), n , , (. 12.1).
. 12.1
, R = 110 r = 50 = 150 . = 150 l = 2 . k = 1,5, l = l / k = 1,33 . l / 4 = 0,33 , r = (R × r)1/2 = (110 × 50)1/2 = 75 . 33 , -4-75-15. >1, 㳿 , , . .
l / 8.
: k l =(2p/l)(l/8)=p/4; cosp/4=sinp/4=0,707. (11.7) :
. (12.2)
, (12.2), (Z = R + jX). , r = (R2 + X2)1/2 Z . :
. (12.3)
, l/8 r = (R2 + X2)1/2 , .
, , l/2, l/4 l/8 .
. , L, , .
. 12.2 璺 r1 r2 . r2 > r1,
. 12.2
x :
. (12.4)
:
. (12.5)
(x = L) (12.4) :
. (12.6)
:
. (12.7)
. , L. (5 ¸20) (12.4) . , , (10.2). .
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- , . r1 r2 , , .
, - . , , . , .
, , 㳺 ( - ), 1¸50 .
. 12.3 , .
, . ϳ
. 12.3
璺 . 璺 , 1:3, 1:9. 㳿 , , , - .
, , , , .
- . 12.4, .
. 12.4
, . , . . ,
.
璺 , . - .
. 12.5 LC-. , -, .
. 12.5
LC- - (. 12.6). , . 䒺 z1, z2 , , .
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. 12.6
璺 , , (. 12.7).
. 12.7
. , , , , , .
- .