Transcription of 7章 アレーアンテナ - ieice-hbkb.org
1 4 2 7 4 2 7 [2010 4 ] 7 1 7 1 7 1 7-1 7-2 7-3 7-4 7-5 2013 1/(18) 4 2 7 4 - 2 - 7 7-1 [2010 4 ] 7-1-1 1) 7 2 N x d 7 2 N (1) 7 2 7 2 n rn = (xn, 0, 0) an n , 7 2 g( , ) R = (sin cos , sin sin , cos ) 7 2 E( , ) (7 1) ()( )()[] = == =100100sinexpexp),(expexp),(),(NnnnNnnnn ndjkjagjkjagE Rr k0 = 2 / (7 1) (7 1)
2 1 7 2 = 0 n n 00sin ndkn = (7 2) 2013 2/(18) 4 2 7 2013 3/(18) = 0 (7 1) ()()()2/sin2/sinexp)(10uNNujnuuFNn== = (7 3) u (00sinsin) =dku (7 4) u d 0 (7 3) F(u) u = 2m (m = 0, 1, 2.)
3 1 d (7 4) u u<<1 (7 3) ()2/2/sin)(NuNuuF (7 5) (7 5) (2) 7 3 N = 9 (7 3) 7 3 u u = 2m (m = 0, 1, 2, ..) 1 7 2 z (7 4) 0 0 = 0 sin 0 = 0 |sin | 1 u (7 6) dkudk00 d = /2 7 3 |u| | sin | 1 /2 /2 |u| d = 7 3 |u| 3 |u| = 2 4 2 7 2013 4/(18) 7 3 N = 9 d 1)
4 D 0 0 (7 4) |u| = /2 (0maxsin12 +=du) (7 7) |u| = 2 () 2sin120<+d (7 8) d 0sin11 +<d (7 9) (7 9) = /2 0 (7 9) d (7 9) d / = /2 7 4 7 4 d/ [deg.]
5 ] 4 2 7 7-1-2 1) 7 5 4 3 4 7-1-1 x y 2 4 3 4 4 xyyxdxdy2dx2dy4 3 7 5 4 3 4 x n y m Anm = anm exp[ nm] x dx y dy ()()[] +=nmnmmvnujAFexp, (7 10) cossin0xdku= (7 11) sinsin0ydkv= (7 12) x n y m x y An Am Anm = An Am (7 10) 2013 5/(18) 4 2 7 ()[][] =mmnnjmvAjnuAFexpexp, (7 13) (7 13) 4 (1)
6 7 5 4 3 7 5 x y 4 3 zx yz 2) 7 5 4 3 z = 0 7 6 TxTy TxTy/dx/dy/dx/dx4 3 7 6 0 7 7 2013 6/(18) 4 2 7 sin sin cos Tx sin sin Ty sin ( / 2) = 1 4 / dx / dy 4 3 3 3 4 7 7 7 6 4 = 60 = 30 7 7 7-1-3 (1) 1) (2) 3)
7 7 8 7 8 2013 7/(18) 4 2 7 4 - 2 - 7 7-2 [2010 4 ] (1) (2) (3) 7-2-1 1 13 dB 18 dB 1) Chebyshev Taylor (1) 4) () = 2cos01uzTuFN (7 14) z0 1 R (7 15) ()
8 01zTRN = = RNz10cosh11cosh (7 16) 1 ()()()()02101!1!111022= < + = =nNnmmmnNmnNanmmmmn (7 17) 0201zz = (7 18) 2013 8/(18) 4 2 7 2013 9/(18) (7 17) ( )l ()( )( )()121 +++=ll L (7 19) ()10= (7 20)
9 D = N = 16 25 dB 7 9 7 9 N N (a) (b) 7 9 (2) 5) N a = (N 1) d N () =221cosAzzF (7 21) sin2az= (7 22) A 1/cosh ( A) (7 5) ()()zzzF sin2= (7 23) z 0 1/z n z n (7 24) F2 z n (7 21) F1 -10-9-8-7-6-5-4-3-2-10-4-2024X [ ]Relative Amplitude [dB]-40-35-30-25-20-15-10-50-90-60-30030 6090 Angle [deg.]
10 ]Relative Amplitude [dB] 4 2 7 2013 10/(18) 6) N
