磁共振无线充电技术鼻祖级文章英文原文.docx

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a , . 60W 40% . a 5%. .
 , (10); , .
. . (11),

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 m(t) = (iωm - Gm ) (t) + å iκ (t) + (t)
n¹m
(1)

. , (. ) . , a (, , , , .) a , (2–4). (5), , a : , . A (6) a (7). , , . , , , , .), a “ ” (8). a , . , , (6).

. , : (9). , . , () .
 . (t) m (t)|2, wm , Gm (. ), w0 G0 (iw0t – G0t). k = k , (t) .
, , ( S) a , a k. ( D) a ( W) a , GW 's GD. G¢D = GD + GW. , . 2G(t)|2. h GW, . 1, . ,

GGD = (1 + k2/GSGD)1/2. k2/GSGD > 1. .

, w2/GD2 (~106 ) .
. , ( ) , ( ) a (12) (. 1). . l a
 , f0 = 1/2p[()1/2]. a a(t) = [(2)1/2]I0(t).
0|2/2. a n a s, () () :

µ0ω l

a n , r, h. , a , ,
 =
2σ 4πa
µ ⎛ π

⎛ ωr ⎞4

2 ⎛ ωh ⎞2 ⎞
(6)

(13). , ,
R = 0 ⎜
n2 + ⎟
(7)

r ε ⎜ 12
⎜ c ⎟
3π3 ⎜
c ⎟ ⎟

( 5%) .
, . , s , -2 2, I0 (p) (iwt). l0 (p) (iwt), ( ) q0 = l0p .
, p/2 , . ,
0 ⎝ ⎝ ⎠ ⎝ ⎠ ⎠
. 7 a ( r << 2pw); , . G = ( + )/2L, Q = w/2G.
k , a (iwt).

S D
P = ò (r) × J (r)
=- ò ( S(r) + ÑfS (r))× J D (r)

, , . , L C :

=- 1 òò ¢⎛µ S(r¢) + ρS (r¢) 4π ⎝ | r - r | ε0
⎜ 0 ¢
º -iω
r¢ - r ⎞
⎠
¢
| r¢ - r |3 ⎟ × J D (r )
(8)

2
L = µ0
4π | I0 |
òò ¢ J(r) × J(r¢)
| r - r¢ |


 S . k = k = k = w2[()1/2].

1 1 ρ(r)ρ(r¢)
 D

2
=
C 4πε

0 | q0 |
òò ¢


| r - r¢ |
(4)
 , k D-3 . k G , k/G

J(r) r(r)
, . , L C U
 a f, 1-50 .
, a , , a .

1 2

U = 2 L | I0 |
.

1 2 h = 20, a = 3, r = 30 , n =

= 2C | q0 |
(5)
5.25. . , a 10% (2) h.

f0 = 10.56 ± 0.3, 5% 9.90.
Q 2500 ( s = 5.9 × 107 W) Q = 950±50. , (~20mm) . Q GS = GD = G = w/2Q .
k (, h, ) a D . , Dw = 2[(k2 -
G2)1/2]. , (. 2), (. S1 S2).
. k/[()1/2] = k/G, 1 D = 2.4m ( ) (. 3), .
, a a 25 (. 1); . a (14), , . , GG , (1 + k2/G2)1/2. ( a GW .) .
a ( Q .) a . =
G2, h = ( + +
). a , . . 4, , . 2. , a 60W 2m (. S3 S4).
a , .
 , , , 100% (15). , a . 60W a 2m, , 400W. 15%, 40% .
. (6). . a D0 a Q, .
A , , , , , , (. S3 S5). a a . ( , ) , a , (, , ) Q a , .
60W 2m,
= 210, = 1, = 3.22 (16). , . , 20 , = 1.4, = 8, = 0.22. 5W, . , ( ) , , . (6) - - , (17) , , (. (18).)

, . , , , (6).

, Q, (19). , .

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10. L. , J. W. , P. G. W., . 7,042,196 (2006).
11. H. , (
 11432541
. S1 S5
30 2007; 21 2007
7 2007; 10.1126.1143254 .

. 1. . A a 25 , a 9.9. S D . B a (“”). k’s . D A , S D . B A B S .
. 2.
k a ( .)
. 3. k/G a . k G. k/G 5% Q.
. 4. . ,

, , , 1984).
12.
 . 3 . 2 [ G
k2/G2 1/2
GD
= (1 +

. a , . .
13. S. , , (1951).
14. 5W 75W.
15. W. A. , (, , 1953).
16. E ¹ cm0H, a .
17. .
18. C95.1—2005 , 3 300 (, , , 2006).
19. J. B. , 306, 1353 (2004).
20. , Čć . . 02-13282, . . 02-9945778, . 19-020002.
) ]. . 2 k/G . 3. , .