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R ′ , L ′ , C ′ , G ′F7&/(D&)(J
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Y&)9D&/-4.-0I4.'(=
I 1 = I 2 + G ′ U dz + C ′ · dz · ∂U
∂t
F!"KJ/01$)-)(*2
I 2 = I 1 + ∂I
∂z dz; I = I 1 + I 2
2
3 !45U 2 = U 1 + ∂U
∂z dz; U = U 1 + U 2
2
3 !657),-$8$*9*),3:!"5$'&;(*<0,2
− ∂I
∂z = G ′ · U + C ′ ∂U
∂t
3 ! 5=08&$,8>0,,+,-$,*(0,-;+?$'$<@A0B2
U 1 + R ′ Idz + L ′ ∂I
∂t dz + U 2 = 0
− ∂U
∂z = R ′ · I + L ′ · ∂I
∂t
3 !.5@0'*!/)C$'$,9$,DE,3:!.5,0&
z
$'-)1*2∂ 2 U
∂z 2 = R ′
− ∂I
∂z
+ L ′ ∂
∂t
− ∂I
∂z
.
3 !F5=)*
∂I
∂z
0+AG($)&+,-3:! 5$'-)1*8)&8&()$?()&B)$ !"!#$%&!'#"!(*+'# 2∂ 2 U
∂z 2 = L ′ C ′ ∂ 2 U
∂t 2 + R ′
L ′ + G ′ C ′
∂U
∂t + R ′ · G ′ L ′ · C ′ · U
3 !:5
!"!# $%&'()*%+ ,-',% .&%/*'-(.,' 1,22,
H,80*92
U = U(z) · e iωt ; I = I(z) · e iωt 3 !I5
J,B)$8$<K0(($'-)1*8)&0+8B$,G($)&+,-$,3:! 5+,B3:!.52
− ∂I
∂z = (G ′ + iωC ′ ) U
− ∂U
∂z = (R ′ + iωL ′ ) I
3 !L5/)$M$($-'0A$,-($)&+,-(0+*$*B0,,2
∂ 2 U(z)
∂z 2 = (R ′ + iωL ′ ) (G ′ + iωC ′ ) U(z)
3 !"N5/08)8*$),$/G#<)*OE,8*0,*$,PE$Q9)$,*$,!
,-.+'#.%'.%/01
U(z) = U ◦ · e γz 3 !""5 /+'&7),8$*9$,),3:!"N5$'&;(*<0,2
γ 2 = (R ′ + iwL ′ ) (G ′ + iwC ′ ) γ = ±
iwL ′
R ′
iwL ′ + 1 1 + G ′ iwC ′
iwC ′
1 2
γ = ± iw (L ′ C ′ )
1 2
1 − iR ′
wL ′ 1 2
1 − iG ′ wC ′
1 2
3 !"45
9:*;')*0'617*'<5'/='/
f ≥ 10kHz
.0&)>R ′ wL ′ , G ′
wC ′ ≪ 1
?"#@ABC-,0) (D//'/ E0' 6'0E'/ &')=)'/9-()+*'/0/+6'/1)'3'/E'* F&'035/. /-3G-H&+*'/)I0('&)
I'*E'/>
γ ≃ ± iw (L ′ C ′ )
1 2
1 − iR ′
2wL ′ 1 − iG ′ 2wC ′
?"#@"B
G*'//5/.J+/K'-&L5/EM,-.0/N*)'0&'*.06)E-//0/.5)'*ON3'*5/.>
γ = ± (α + ik)
,0)α ≃ 1
2
"
R ′ · L ′
C ′ − 1 2
+ G ′ L ′
C ′ 1 2 #
;
CN,P75/.1(+/1)-/)'k ≃ ω (L ′ C ′ )
1 2
?4'&&'/=-3&B ?"#@ B
;'-3)'>
R ′ 01) +6'*3-&6 '0/'* F*'/=7*'<5'/= ?.'+,')*0'-63N/.0. J+, 8'0)5/.1<5'*13/0))B
7*'<5'/=-63N/.0.?∼ f 1 2 I'.'/Q(0/'R'()B#
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5/EQ)*+,3-*-()'*0=0'*)>
U = Z L 2
L 1
Ed~s; ~
4'.J+/8'0)'*@=58'0)'*VI =
I Hds; ~
.'13'.5,'0/'/E'*6'0E'/8'0)'* ?"#@!BS&&.','0/'*S/1-)=7:*E0'QP-//5/.1J'*)'0&5/.>
U(z, t) = U p e −αz e i(−kz+ωt) + U r e αz e i(kz+ωt) ?"#@WB
C-*-51'*3N&),-/E0'Q)*+,J'*)'0&5/.,0))'&1E'*F&'035/.?W#XB>
I = − 1
R ′ + iωL ′
∂U
∂z
→ I(z, t) = I p · e −αz e i(−kz+ωt) + I r e αz · e i(kz+ωt) ?"#@YB
C'Z/0)0+/E'1 !"#$%&'(!))!%("*!+'#,%*'>
I p = U p
Z L
; I r = − U r
Z L
?"#@XB
C-,0)'*.06)103>
Z L =
R ′ + iωL ′ G ′ + iωC ′
1 2
?"#V$B
9:*/0'E*0.'9*'<5'/='/
ω → 0
>Z L → r R ′
G ′ ?"#V@B
01'2$,03((&4&$'0'$5+$,6$,-)(*7
Z L → r L ′
C ′ 8 !99:
;,2$'<'3=)>-)(*2)$?($)&+,-8/!99:),-+*$'@A&$'+,-B$)0'$5+$,6$,4B$'&3(BC4,
∼ 1kHz
!D$)>E)$(F1'2$,0'$5+$,6C$'(3+FC4,
Z L7
R ′ = 4.4 · 10 −3 Ω/m; L ′ = 3.1 · 10 −7 H/m
G ′ = 10 −10 S/m; C ′ = 4.6 · 10 −11 F/m
8 !9G:H3,,$'-)B*>)&F4(-$,2$'I$'(3+F7
!!"#$%&'()(*+,-".012314%1&56!07&'"'81"9 $1.:1##1"9%&'.;"$13.96&$.
Z L)
J,*>E'$&$,2 2$' ?($)&+,- 8/!".: -)(* F1' 2)$ K$(($,63&(
k ≃ ω (L ′ C ′ ) 1 2 +,2 23L)* F1' 2)$
<&3>$,-$>&M),2)-N$)*
v P = ω
k = 1
√ L ′ · C ′ .
8 !9 :K)'B$'$&,$,$=E()6)*2$,O3E36)*A*>P+,2;,2+N*)C)*A*>B$(3-F1'$),$O43=)3(($)*+,-7
U = Z r a
r i
E r dr; ∇ · ~ E ~ = ρ ε ◦ ε r
?3+Q>&$'R3*6B6-(!#32+,->B$(3-
Q ′ 3+F;,,$,($)*$'7
Q ′ = 2πrε ◦ ε r · E r
E r = Q ′ 2πrε ◦ ε r
8 !9.:
!!"#$%&'()*+ ,%-./01/2-"/ $/34056"5##/"2/-3
9-,0)'*.06)1037:*+60.'1;/)'.*-&<
U = Q ′ 2πrε ◦ ε r
Z r a
r i
dr
r = Q ′ 2πrε ◦ ε r
ln r a
r i
="#>?@
A-B-C0)D)16'&-.E'*A+-F0-&&'0)5/.<
C K ′ = Q ′
U = 2πε ◦ ε r
ln
r a
r i
="#>G@9'/;/E5()0H0)D)16'&-.
L ′ K6'(+,,),-/:6'*
φ ′ = L ′ · I.
="#>!@φ
01)E-6'0E'*,-./')013'I&511B*+8'0)5/.1&D/.'6'0J)*+,I
#K0)L&'035/.=G#M?@6'(+,,),-/<
H ϕ = I 2πr φ ′ = µ ◦ µ r
Z r a r i
H ϕ dr = µ ◦ µ r I 2π ln
r a
r i
="#>N@
9-,0)'*.06)1037:*E'/;/E5()0H0)D)16'&-.<
L ′ K = φ ′
I = µ ◦ µ r
2π ln r a
r i
="#O$@
%0/.'1')C)0/L&'035/.=G#>"@'*.06)103E-,0)E0'P3-1'/.'13Q0/E0.('0)E'*7*'0'/4'&&'<
v P = 1
√ L ′ C ′ = 1
√ ε ◦ µ ◦ ε r µ r
= c
√ ε r µ r
="#OM@
90'1'1%*.'6/01.0&)7:*-&&'8'3'*&'0)5/.'/5/E01)0,R-3,'/E'*0/L&'035/.=G#M @'/)3-&)'S
/'/TD3'*5/.C5)*'U'/E#90'5/)'/1)'3'/E'V660&E5/.C'0.)WE-117:*'0/')XB013'8'3'*&'0)5/.
')Q-+6'*3-&6H+/
10kHz
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ε rS\'*)'0&5/.')#@3'*#
!!"#$%&'()*+ ,-"./"-#0%123-4%-&05-367#8-&59&
γ = ± (α + iβ)
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0$)12$'(3-$'+,- 45, 45'6+,7 '89(3+:$,7$' &3';5,)<&$' =$(($ 3+: $),$' #$)*+,- 3+:-'+,7
$),$< -$-$2$,$, >2<&(+<<?)7$'<*3,7< 3; #$)*+,-<$,7$ 2$)
z = 0
43'))$'* 73< @$'&A(*,)<U(z)/I(z) = W (z)
;)* 7$' B5<)*)5,z
! C3, 2$D$)&,$*W(z)
3(< 7$, ,3&z
*'3,<:5;)$'*$,>2<&(+<<?)7$'<*3,7
W (0)
! =)7$'<*3,7<*'3,<:5';3*)5, $,*(3,- $),$' $),<$)*)- ;)* E;F$73,DW(z = 0)
32-$<&(5<<$,$,#$&$'($)*+,-G!!"#$%&'()*+,%$-&.//0$"&12-& -"&-0-"&3-"2"' 1!'-35#/33-&-&6-5-0#-"2%&')
$.(08)&2&.99&):%&/24.-&.;<#=<>4.9;<#=?>-/%(6@)&/.&2,)+*./02&3&%%&
U = U p · e −γz + U r e γz I = U p
Z L · e −γz − U r
Z L
e γz .
;"#AB>C&D./(*.9&0E&F&G/*.06,'(*)0,+7&/(4.-0&.9&
z = 0
Hr = U r
U p
;"#AA>
$/.-&0&(I(/.9/&:%&/24.-;<#AB>H
U = U ◦ e −γz + re γz I = U ◦
Z L
e −γz − re γz
;"#A">
J.9&)K(&%%&
z = 0
-/%(9,..HU
I
z=0
= W(0) = Z L · 1 + r
1 − r
;"#AL>J46-&%M0(.,2
r
&)2N%(+,.Hr = W (0) − Z L
W (0) + Z L
=
W (0) Z L − 1
W (0) Z L + 1
;"#A >
K8&I/,%6N%%&H
W (0) = 0 r = − 1 W (0) → ∞ r → +1
W(0) = Z L r = 0
;"#A<>C/& :%&/24.- ;<#A > 5&02)&/5( 9/& !"#!$%& '(()*+,"- IO/02&. 3/9&)0(,.90&5&.& 4.9
E&F&G/*.06,'(*)&5&.&# P*.6*)+& J55# 0/.9 O/.'&%()&4 4.9 5&2,%(&. 9&. C)&20/.. 5&/# $0
5&0(&2(&/.&&/.9&4(/-&J55#Q*.
W (0)
,46r
+/(| r | < 1
#/$00*$&,)0& )0* 1+& 2$' 3$4$5)6,0718*6' 19 :),-1,- $),$' #$)*+,- ),*$'$001,*! /)*
2$';($)&+,-<=!>?@81,,2)$;($)&+,-<=!>>@7A'B$2$C*$(($
z
D$'1((-$9$),$'*E$'2$,Fr(z) = U r e γz U p e −γz = U r
U p · e 2γz < !>G@
CH$I)$((19:),-1,-$),$'#$)*+,-9)*#J,-$
l, z = − l, γ = α + ik
-)(*21,,Fr(l) = U r
U p
e −2γl = r · e −2αl · e −2ikl < !>K@
| r(l) |
19#$)*+,-0$),-1,-)0*1(06+92$,L18*6'e −2αl8($),$'1(019M+0-1,-<#$)*+,-1N06'O
N)$'*#$)0*+,-@!M+P$'2$9N$E)'8*2)$#$)*+,-H'6#J,-$∆l = λ 2 $),$Q&10$,2'$&+,-D6,r(z)
r(z)
+9
2π
! R+'&2)$ #$)*$'(J,-$l
E)'2 2$' ST)2$'0*1,2UW(0)
), 2$, T$'*W (l)
*'1,076'9)$'*!R10;($)&+,-00V0*$9<=!> @$'-)N*F
W(l) = U
I
z=−l
= Z L
e γl + re −γl
e γl − re −γl .
< ! W@/)*
r
,1&;($)&+,-<=!>.@N$8699*91,0&()$P()&FW(l) = Z L · W(0) + Z L tgh γl W(0) tgh γl + Z L
< ! "@
X,Y$'1((-$9$),$'+,-D6,;($)&+,-<=!>.@N$8699*91,7A'2)$Z'1,076'91*)6,IE)0&$,
r(l)
+,2
W (l)
r(l) =
W(l) Z L − 1
W(l) Z L + 1
< ! ?@
R10 !"#$%&"'()'!!0*$((* 2)$T)2$'0*1,20*'1,076'91*)6,),2$'3$4$5)6,0718*6'$N$,$21'
<-'6P$H'18*)0&$[$2$+*+,-\R1'0*$((+,-1+&1+7]$*IE$'81,1(V01*6''$1()0)$'*@!
#),)$, ), 2$'
W(l)
O^1(N$N$,$ 9)*R(l) Z
L = const E$'2$, ), _'$)0$ 1N-$N)(2$*\ 2$'$, /)*O
*$(H+,8*$1+72$''$(($,
r
OM&0$()$-$,!W (l) Z L
= R(l) Z L
+ iX(l) Z L
< ! >@
!!"#$%&'()*+ ,"$-./01&$/0.1&/23.410"3& "&$-.5-6-7"3&/21803.-!-&-+94"0:;<"1'.144
!" #$%&'()*+,-%'./1% 2%$$%-+3/4(%.'3-, .- 5%($3/'$)/%-
6)1$$%.'%(-
!"!# $%&'& ()*&++&' ,-$./ $)*&++&' ,-0. 1'2 -$0)*&++&' 3' 4&5)
+167+86&' 0&23&'
9/ :-;# #! <5*=' -&1 8>15/. 7?* '0/' '6'/'@ 3+,+.'/'@ &0/'-* ;+&-*010'*)' 4'&&' AB%CD 0,
E'*&51)&+1'/F-5,.'75/='/G
E x (z, t) = E ◦,x · e i(wt−kz) ;
AH516*'0)5/.0/z
IF03)5/.DH y (z, t) = 1
Z · E x (z, t) Z =
r µ ◦
ε ◦ · r µ r
ε r
; ε r = ε ′ r ; µ r = µ ′ r ; ε ′′ r = µ ′′ r = 0 ω = v · k ◦ ; v = (ε ◦ µ ◦ ε r µ r ) − 1 2 ; k ◦ = ω √
εµ;
A"#""D7.%8*9$.'3:%-
E ◦,x;H ◦,y /.-:.*,+-<%-=+3*&)-/'+-'>?1)*),%-%2%$$%@!
A%'<' /31%- B.( -+1 %.-%( .-1)*),%-%- %4%-%- 2%$$%; B%$1% :.% C+DB%$$,$%.13-,%-
*.'E%.'+41F-,.,&%.'
e iωt3-:83/4(%.'3-,.-z
G=.1'3-,%(HI$$'!
7.%C+DB%$$,$%.13-,%-$+3'%-.-:.%/%*J+$$K
∇ × ~ E ~ = − iω ~ B
∇ × ~ B ~ = +iµεω ~ E
∇ · ~ B ~ = 0
∇ · ~ E ~ = 0
> ! L@#.-%.-1)*),%-%%4%-%2%$$%;B%$1%.*=+3*%D9)-%-'.%$$+4HF$$';$F//'/.1+$$,%*%.-H)$,%-G
:%(*+M%-/1(%.4%-K
E ~ = E ~ p · e −~ γ·~ r H ~ = H ~ p · e −~ γ·~ r
*.'
~γ = ~ α + i~k;
>1.%(&%.-%N%($3/'$%./'3-,.-N%(4!*.'α ~
@ > ! 5@73(1#.-/%'<%-.->O! L@%(,%4%-/.1PQ/3-,%-HI(
~γ
K∇ × ~ E ~ = − iµω ~ H.
> ! O@8-:%(%(/%.'/%(,.4'/.14%.:%(83/HI1(3-, R)-
∇× E ~
*.'E ~
+3/>O! 5@K∇ × ~ E ~ = − ~γ × E ~ p · e −~ γ~ r
→ ~γ × E ~ p = iµω ~ H p > ! S@
8-+$),4%&)**'*+-K
~γ × H ~ p = − iεω · E ~ p > ! T@
U$%.13-,>O! S@*.'
(γ × )
*3$'.9$.<.%('K~γ × ~γ × E ~ p = +iµω~γ × H ~ p > !LV@
~γ × ~γ × E ~ p =
~γ · E ~ p
· ~γ − ~γ 2 · E ~ p > !LW@
7.%(%1'%X%.'%R)->O!LV@%(,.4'*.' >O! T@K
− i 2 · µεω 2 E ~ p = µεω 2 E ~ p (7.44)
z}|{ = k 2 ◦ · E ~ p > !L"@
U$%.1/%'<%- :%(4%.:%-(%1'%-X%.'%->O!LV@3-:>O!LW@%(,.4'/1$.%M$.1K
~γ · E ~ p
· ~γ − ~γ 2 · E ~ p = k ◦ 2 · E ~ p > !L6@
C3$'.9$.&+'.)-R)-U$%.13-,>O! T@*.'
~γ
%(,.4'K~γ ·
~γ × H ~ p
| {z }
0
= − i · ε · w · ~γ · E ~ p
→ ~γ · E ~ p = 0
> !L @8,+/(&)29%(+,.,40:&);%&/24.-<=">?@+/(<=">!@A
~γ 2 = − k 2 ◦
~γ 2 =
~ α + i~k 2
= α ~ 2 + 2i~ α~k − ~k 2 <!">>@
8,),406*%-(A
α 2 − k 2 = − k ◦ 2 ; k 2 = k ◦ 2 + α 2
~
α · ~k = 0
<!"> @B*%-&)4.-&.A
•
8/&3&%%&.%9.-&:&)/.2*+*-&.&.3&%%&/0('%&/.&),%0/+2*+*-&.&.B,%%Ak ≥ k ◦<="!C@6D):&.E.0,(F.,2;%&/24.-<="! @
•
8/&89+G64.-α ~
:&)3&%%&.,+G%/(4:&%/&-(0&.')&2(F4)E405)&/(4.-0)/2(4.-"• ~γ
0(&2(0&.')&2(,46E ~ pH:"2"
~
α · E ~ p = ~k · E ~ p = 0
<!">=@$.(0G)&2&.::/&0&)I,.:5&:/.-4.-'J..&.6*%-&.:&K)/&.(/&)4.-&.-&L92%(L&):&.A
~k = k · ~e z<E405)&/(4.-:&)3&%%&/.z
MI/2(4.-@
~
α = α · ~e y
E ~ p = E 0 · ~e x <!">N@
8,..&)-/5(0/2,40;%&/24.-<="!N@6D):,0
H
MB&%:AH ~ p = 1
iµω (α~e y + ik~e z ) × E ◦ · ~e x
= 1
µω E 0 (iα~e z + k~e y )
<!">O@$)-&5./0A8/&0&/.2*+*-&.&3&%%&2,(.4)&/.&.0&.')&2(F4)E405)&/(4.-0)/2(4.-0(&2&.:&.
E
MB&%:,.(&/%" 8,-&-&. -/5( &0 0*L*2% &/.&. 0&.')&2(H L/& &/.&. G,),%%&% F4~k
0(&2&.:&.H
MB&%:,.(&/%"$02,.:&%(0/2:,+/(4+&/.&H
*:&)T E
M3&%%&<P-%"Q,G"?4.:E55"="O@"8/& $ *:&) RSM3&%%& &)-5/( 0/2 ,.,%*-H L&.. :/& ;%&/24.-&. <="!C@ 4.: <="!!@ .,2
H ~ p ,46-&%J0(L&):&.A
H ~ p = H ◦ · ~e y
E ~ p = 1
εω H ◦ (iα~e z − k~e x )
$M3&%%& <!" #@!!"#$%&'()*+ ,%-./#$0-"/&1"/-%&'/"&/-"&2030'/&/&4 /!/&/& 567/##/)
7.%8#9:2%$$%%(,.4'/.1+$//;%<.%$$%=>/3-,?@(A%-3-4%,(%-<'%-B+3*C1)*),%-%%4%-%
2%$$%D4<E!4%.F)(1+-A%-/%.-G)-,%,%-%.-+-A%(./)$.%('%-=%.'%(-C=%1%($%.'3-,%-HI+;!J!KD!
!"!" #$%$&'()*+$,')-.)-$) /) ',$/0 0$'1$),$23 40/)$2 5068$
#/?+$$%%.-%%4%-%H1)*),%-%H$.-%+(;)$!2%$$%%.- *.'L
ω = v · k ◦ = c
√ ε r µ r · k ◦ ; k ◦ = ω √ ε r µ r
c
C !5KD
!!"#$%&' ()89+:"&;<##%&$ =/>/?"0& /"&/-/!/&/&7/##/ <&"$/<##/"1/&$/-.#@2/!/"
z = 0
)8&)+4(4.-9
:&.')&2( ,4;,%%&.<&) 3&%%&.,.(&/% =/)< (*(,% )&>&'(/&)(" ?,),%%&%,.(&/% %@46( =&/(&)
→
A405)&/(4.-/.
y
BC/2(4.-DE,%%F,%0GB3&%%&H=/&/.A55"HI"J#K-&L&/2.&(KDE,%%FF,%0$B3&%%&H=&..+,.</&M)/&.(/&)4.-&.N*.
E ~ 14.<H ~ 1-&-&.&/.,.<&)N&)(,402(K"
!"#$%$"$%& '%() #"+,-./0#) 1"..2 !#$0(3!+$4
!!"#$%&'()**+,"&-.##/&$/ 0/##/&-12&3/&%&$ 4125/63"2&$/10/##/&'/"& %8!1/"3%&'81":;
3%&'
y
)k ◦ = w · √ εµ
E)&/),4+=&%%&.L,2%<&)&5&.&.D2*+*-&.&.3&%%& H!" OK P/&&/.6,%%&.<&. 3&%%&.-)QR&.(),-&.F.<&SJDF.<&SO0(&2(6T)</& ,40%,46&.<&3&%%&"E 1,x = E 1,0 · e −ik ◦ (ysinφ 1 +zcosφ 1 ) H 1,y = E 1,0
Z cosφ 1 e −iko(ysinφ 1 +zcosφ 1 ) H 1,z = − E 1,0
Z sinφ 1 e −iko(ysinφ 1 +zcosφ 1 ) H!" UK
A+V&(,%%()/(('&/.&W)&24.-D0*.<&).&/.&X*(,%)&>&S/*.&/."P,0E&%<',.../2(&/.<)/.-&."
A.<&)M5&)>@2&-/%(9
E k = E x = 0;
=&-&.9(σ → ∞ )
H ⊥ = H z = 0; (
=&-&.∇ × ~ E ~ = − µ · H; ~ ˙
5&/σ → ∞ )
H!" !K"#$%&'()*+,-*-.-/&,-*&-0-11-23-15-6,&0,#/-1
φ 2 %7$1%7(-#$8119
E 2,x = E 2,0 · e −ik ◦ (ysinφ 2 −zcosφ 2 ) H 2,y = − E 2,0
Z cosφ 2 e −iko(ysinφ 2 −zcosφ 2 ) H 2,z = − E 2,0
Z sinφ 2 e −iko(ysinφ 2 −zcosφ 2 ) :;< =>
?)*
z = 0
6)$$-#$,5-,#@ 7#+%7$(%11-#+-E x@0-11-A-*%+-%7$1B$5-#<C%6,&D-/866&6%#
+7*5"++,&,8#E8#
E 1 , x
7#+E 2 , x
#%5F1-,57#A:!< G>9E 1,0 · e −ik ◦ ysin φ 1 + E 2,0 · e −ik ◦ ysin φ 2 = 0 sin φ 1 = sin φ 2 ; φ 1 = φ 2 = φ
E 1,0 = − E 2,0 .
:;< >H#$A-$%6&-*A,D&$,5()*+%$?-1+,6I%1D*%769
S y
E x = − iE 1,0 · 2sin (k ◦ zcosφ) · e ik ◦ ysinφ H z = i E Z 1,0 2sin (k ◦ zcosφ) sinφe ik ◦ ysinφ
H y = E Z 1 , 0 2sin (k ◦ zcosφ) cosφe ik ◦ ysinφ :;< !>
C% #7* -,#-
E x@J86K8#-#&-2 %D-* $83851-,#- H z2 %1$ %75 -,#-H y@J86K8#-#&- ,#"7$D*-,@
H y@J86K8#-#&- ,#"7$D*-,@
&7#A$*,5&7#A
y
-L,$&,-*-#25%#+-1&-$ $,523,--*3%*&-&2 76-,#-H
@0-11-< ?)*+-# M8N#&,#A@O-/&8*A,1&9
Re ~ S y = 1 2 · Re
E ~ x × H ~ z ∗
:;< P>
Q-+,#A7#A%7(?1R5-#6,&,+-%1-*S-,&(R5,A/-,&9
E k = H ⊥ = 0.
C%6,&(81A&,#7#$-*-6?%119E x = H z = 0
()*z = 0.
:;< T>C%$5-,U&26%#/%##,#+%$0-11-#(-1+#%5F1-,57#A:!<=!@!<=P>-,#-'3-,&-M1%&&-,6"D$&%#+
z = b
-,#D*,#A-#%#+-#V&-11-#6,&sin (k ◦ b cos φ) = 0
(k ◦ b cos φ) = m · π; m = 0, +1, +2, . . .
:;<!W>b = m · λ ◦ 2 · cosφ
λ ◦ ,$&+%D-,+,-,"!+!0-11-#1R#A-,6X-+,766,&ε r2µ r<
µ r<
C-*"7$+*7/
k 0 · cos(φ)
D-'-,5#-&+-#M5%$-#E8*$57D,#'@Y,5&7#A7#+3,*+6,&k zD-'-,5#-&
:"DD<!<Z[>9
k z = k 0 · cos(φ).
!"!# $%'(%)'*'++%,(%-
!!"#$%&'()*+, -"&./'0&0"&0120"3010&"$04##0"30&$0&-!0&0
∆z = z 2 − z 1 = b
)9:*;-1<=4'&&'/7'&;/-3>&'035/.?@# @A.0&)B
C0'4'&&'/-516*'0)5/.'/)&-/.
y
'*7+&.)'/)1D*'3'/;;',E'*,e −ik y ·y = e ik ◦ sin·φ·y ?"#@FA
,0)
k y = k ◦ · sinφ.
G/ ;0'1', 9-&& 01)-&1+ ;0' 4'&&'/&H/.' 6I.#;'* J516*'0)5/. 0/K=L03)5/..*MN'*-&1
λ ◦#O5/
(-//
sinφ
,0))'&1;'*P';#?@#@$A0/J63H/.0.('0)Q+/λ ◦5/;b
-51.';*:()R'*;'/B
k y = k ◦ · p
1 − cos 2 φ = k ◦ · s
1 − mλ ◦
2b 2
k y = 2π λ y
; λ y = λ ◦
sin(φ)
?"#@SA9:*
λ ◦ < 2b m 6&'06)k
*''&&T ;#3#'1 U/;');0'J516*'0)5/. '0/'* 4'&&'1)-))#9:*λ ◦ > 2b m R0*;
k
0,-.0/H*V;#3#;0'4'&&'R0*;.';H,D7)#W0'(-//103IR013'/;'/X&-))'/ /03)-516*'0)'/#C-13'0N)V'1.06)'0/'5/)'*'>*'/I7*'Y5'/I7:*;0'4'&&'/-516*'0)5/.#
J&&.','0/.0&)B
c = f · λ
!"##$= f · λ ◦ √ ε r µ r
f = c
λ ◦ √ ε r µ r
?"#@ZA
J51?@#@ZA7+&.);-//7:*;0' 5/)'*'>*'/I7*'Y5'/I,0)
k y → 0
Bλ ◦c = 2b
m ;
5/;,0)?@#@"Af ◦c = c · m
2b · √ ε r µ r
; k ◦c = mπ b ;
λ c → ∞ ; v pc → ∞
?"#@"AX3-1'/.'13R0/;0.('0) 5/; 4'&&'/&H/.'
λ ◦ .'3'/ 7:* f c -&1+ .'.'/ 5/'/;&03# G/ 5/1'*'*
P')*-3)5/..'3)6'0
f c ;'*%0/7-&&R0/('&φ → 0 ◦#
73/ 8%- 9:%. ;+(+$$%$ <%($+3=%-8%-> $%.'%-8%- #4%-%- %-'/'%1' /1$.%?$.1 83(1 #.-9.%1%-
9:%.%(:%.'%(%(;+(+$$%$%(>$%.'%-8%(@$A1%- *.'
x = x 1 3-8x = x 2%.- B%1'%&1)1$$%.'%(!73=
8.%/%- @$A1%- /.-88.%B+-84%8.-,3-,%-
E y = E z = 0
/):.%H x = 0
=C( 3-/%(%4%'(+1'%'%-H m,0D2%$$%-+3')*+'./1%(=C$$'=C(+$$%2%$$%-$%.'%(1E1%-∆x = | x 1 − x 2 |
!
73/ 8.%/%-F(C-8%- 8%(F(3-8*)8%-/'+4.$.'A' G
H 1,0DH)8%I :A1$'*+- 4%. ,%,!b = ∆z
*%./'
a = 2 b! 7$$%.- b
8%J-.%(' 8+4%. 8.% 3-'%(% F(%-9=(%K3%-9 4%. 8%( ,%,%4%-%- L(.%-'.%(3-, 8%/
b
8%J-.%(' 8+4%. 8.% 3-'%(% F(%-9=(%K3%-9 4%. 8%( ,%,%4%-%- L(.%-'.%(3-, 8%/H 1,0DH)8%!
!!"#$%&' ()*+, -"./01."2&.!03"04%&' "5 624##0"701 891
m = 1
%&$m = 2
) :1%&$52$0".7 $"0H 1,0;<0##05"7:10&3810=%0&3w c 1)
M-8%*/)%-'/'+-8%-%-B%1'%&1)1$$%.'%(&E--%--3-/):)1$
E m,n:.%+31H m,nD2%$$%-
+-,%(%,' :%(8%-! @C( 4%$.%4.,% H)8%-
H m,n 49:! E m,n ,.$' 8+-- .- N%(+$$,%*%.-%(3-, <)-
F$%.13-,GO!5 IP
k 0c,mn 2 = mπ b
2
+ nπ h
2
;
G !OQI@C(8.%H)8%-.*B%1'%&1)1$$%.'%(,.$'G1.%(4%./.-8R%'9'
x, y
8.%S(+-/<%(/+$&))(8.-+'%-3-8z
8.%73/4(%.'3-,/(.1'3-,IPH mn !"#$"%
H z = H z,◦ cos mπx b cos nπy
h e −j 2 λh π z 2π λ k
= k E y = H z,◦ k
k ◦c 2 Z 0 r µ r
ε r
mπ
b sin mπx b cos nπy
h e −j
“ 2
π λh z+ π 2 ”
H x = H z,◦ 2π λ h k 2 ◦c Z 0 mπ
b sin mπx b cos nπy
h e −j
“ 2 π
λh z− π 2
”
E x = H z,◦
k k ◦c 2 Z 0
r µ r
ε r
nπ
h cos mπx b sin nπy
h e −j
“ 2π
λh z− π 2
”
H y = H z,◦
2π λ h k 2 ◦c
nπ
b cos mπx α sin nπy
b e −j
“ 2
π λh z− π 2
”
+/(
E y = − Z F,H H y E x = Z F,H H y 8"# 9:
;<)
E mn !"#$"%-/%(=
E z = E z,◦ sin mπx α sin nπy
b e −j 2 λh π z E x = E z,◦
2π λ h k c 2
mπ
α cos mπx α sin nπy
b e −j
“ 2π
λh z+ π 2
”
H y = E z,◦ k k c 2
1 Z 0
q µ
r
ε r
mπ
α cos mπx α sin nπy
b e −j
“ 2
π λh z+ π 2
”
E y = E z,◦ 2π λ h k c 2
nπ
b sin mπx α cos nπy
b e −j
“ 2π
λh z+ π 2
”
H x = E z,◦ k k c 2
1 Z 0
q µ
r
ε r
nπ
b sin mπx α cos nπy
b e −j
“ 2
π λh z− π 2 ”
+/(
E x = Z F,E H y E y = − Z F,E H x 8"# :
>,5&/',..?&-&.@&.A,.@5&@/.-4.-&.?&@&)
E m0.*2E on&B/0(/&)&.8?&-&.E z = 0
:#
E z = 0
:#!" #$%&'(')*+ ,-').$/0 1,-').$/0 2)3 4)$5'&%&'('6
>/& A&0*.,.C'4)D& @&)5&(),2(&(&.E2?/.-4.-0+*@& &/.&)F,D/(G(?/)@@4)2@/& H<(&C,2%
2,),'(&)/0/&)(=
Q = ω r · W
P
8"# I:ω r =
A&0*.,.C6)&J4&.CW =
-&0K&/2&)(&;&%@&.&)-/& /+A&0*.,(*)P =
L&)%40(%&/0(4.-/+A&0*.,(*)5C?#,46@&. 3G.@&.#M&/0K/&%=
E 010NO*@&PW = 100J; f = 100M Hz; P = 100kW ; Q = 10 5 , ω · W = 60GW
QQ#
ωW
0(&%%( @/& M%/.@%&/0(4.- @,)R ?&%2& /+ A&0*.,(*) %,46&.@ D*. &%&'()/02&) /. +,-.&N (/02&);&%@&.&)-/&0*?/&C4)<'-&?,.@&%(?/)@#9)&:;</$0')*2)3>?@A33)BC*BB&0'D-32$<:C<</E&*B)*2)3#$%&'('F
P = − dW
dt
1 !7G6H&'2)3,0)&/C*B17!776B&0'F
ω r W
Q = − dW
dt
1 !IJ6K*')B3$'&L*)3B&;'F
W (t) = W ◦ · e − ωr Q ·t 1 !I86
KMN$5CCMB&0'D-32&)B)<O)&/)3')?)02)*)3B&)2)<4)<L*$'L3<F
W(t) = 1 2 ε ◦
Z
V
E(~x, t) ~
2
d 3 x + µ ◦
2 Z
V
H(~x, t) ~
2
d 3 x
1 !IP6H$* 5$** Q)2)M 4)<L*$'L3$C/ )&* A3<$'.</$0';&02 1R/E&*B53)&<M&' 2&<53)')M A0)M)*')*
L, C, R
6.L32*)*!S$**B&0'D-32&)B)<O)&/)3')A*)3B&)FW(t) = 1
2 C · U(t) 2 + 1
2 L · I (t) 2 .
1 !I"6?-32&)T)&'OC*5')M$U&M$0)3)0)5'3&</)3;.E!M$B*)'&</)3A*)3B&)B&0'F
W ◦ = 1
2 CU ◦ 2 = 1
2 LI ◦ 2 .
1 !I 6?-32&).)&'0&/):;/(*B&B5)&'2)3 )0)5'3&</)*?)02<'(35))3B&;'<&/2$M&'$*Q)2)MV3'*$/
17!I86+17!IP6F
E(t) = E ◦ · e − ωr 2 Q t · e −iω r t 1 !IW6
S)3)UOL*)*'&)00):;D$00 2)3R/E&*BC*B$MO0&'C2)0(X' <&/ 2C3/)&*)RCO)3OL<&'&L*%L* ?3)@
YC)*.)*&*2)3ZMB);C*B%L*
w r ;)</3)&;)*F
E(t) = 1
√ 2π Z +∞
−∞
E(ω)e −iωt · dω.
E(ω) = 1
√ 2π Z ∞
0
E ◦ e − ωr 2 Q t · e i(ω−ω r )t · dt
1 !I[6S$3$C<)3B&;'<&/2C3/K*')B3$'&L*C*2\C$23&)3)*F
| E(w) | 2 ∼ 1 (ω − ω r ) 2 +
ω r
2Q
2 1 !I76
!"# !#$%!"&"#'()(*+,-."/ ),1 2'-"($*."-$"!3,(4 4"()(($5
!!"#$%&'()*(+
!!"#$%&' ()*,+ -.//0%1!0% 2%3 4./5"66%&' $.3 7./8&0583'95. 9!.3 $". 7./8&0&2!3."5.
∆f
2:"/<.& $.&
3db
=>%&?5.&)Q = f r
∆f
9"#::;8*9/$;0&/)<);';*=2)3,-').$/0>-3#$%&'(')*?/*)@-00;*=1
ε = ε ◦ , µ = µ ◦6A
Q = V
A · δ · g
1 !BC6V =
4)9?*$'?3%?0;D)*A =
4)9?*$'?3?E)3F(/)δ =
G5&*'&)>)g =
,)?D)'3&)>$5'?3 !"#$%&!'()*+$&*,HHI!JK/.Q
&9'$09?E&9$;>2)*,)?D)'3&)>$5'?3=0)&/2)DL)3/(0'*&9$;94)9?*$'?3%?0;D)*1%)30;9'>3)&)@)029M)&/)3;*=6;*2 >)022;3/23;*=)*)D N$*2%?0;D)*! O$/9')/)*29&*2 .P)& 4)9?*$'?3)*
=).)&='+P)0/).;3Q)9/0);*&=;*==)0$2)*)3R)&0/)*=))&=*)'9&*2!RSM&9/))T)5'&%)Q)9/0);U
*&=;*=9=3$2&)*')*0&)=)*.P&9/)*
2M V /m
;*220M V /m
!!!"#$%&'()*+, -./0"/#12(345/#63718.&/6.29%2:.&1&!18<#1%&"'%&')="1!1"$1&/>#"&?1&:&3
&1"612 !1@186"'61& =2"@62A<21& #/$1& 8"< '1'1&B!12 $1& C/#6$2"@62A<21& /> %D1"612 %&$
$12>"66"'1& =2"@62A<21/%@)="1>/'&16"8<1&E1#$#"&"1& %>8<#"1D1&$"1 :.&1"612)
!!"#$%&' ()*+, -./0&1203.&1%/ '.4055.#2.& .##"52"/7.& 8"&9.#9.##.& ":
π
;<0$., =.&17!132.>.##.& /"&$":?.'.&2142.33.'2)