HPHP49-C,*0 HPHP48-R*8ANT2TGV-@,**VFUNDAMENTOS RADIACION BEcuaciones de Maxwell: 4X1H=J+jE | 4X1E=-jH | D= | | B=0 B=4X1A Bf potencial vector: 1 H= 4X1A Bf potencial escalar: E=--jA ́=flujo Bf auxiliares: 321A + K321A = -J 321 + K321 = -/ e3-jkR A(r)=| J(r')dv' 4v' R 1 e3-jkR (r)=| (r')dv' 4v' R BCampo elctrico: j e3-jkr1 3 13 1 Eɷr4X1|r4X1| J(r)e3-jkrr1dv| 4 r v E=jr4X1(r4X1A) | E=-| r4X1H = H4X1r BCampo magntico: jk e3-jkr1 3 13 1 Hɷr4X1| J(r)e3-jkrr1dv| 4 r v H=-j r4X1A 1 H= 4X1A BPotencial vector: e3-jkr1 3 13 1 A=ɷ| J(r)e3-jkrr1dv| 4 r v e3-jkr 1 A=ɷɷN 4 r BVector de radiacion: 3 13 1 N=| J(r)e3-jkrr1dv| v k4x1=ksen cos k4y1=ksen sen k4z1=kcos Ucaso particular: 3L/2 1jk4z1z' sen(k4z1L/2) N=zI4o1| e dz'=zI4o1L 4-L/2 1 (k4z1L/2) BCampos en esfericas: E4r1=0 |H4r1=0 e3-jkr 1|3 1E4 E41=-jN41 |H41=- r | | e3-jkr 1|3 1E4 E41=-jN41 |H41= r | BVector de Pointing: |E|32 1 P=eE4X1H= r BMatriz d cambio d base Ba esfericas: r sc ss cx ||=|cc cs -s||y| -s c 0 z BZona de Fraunhofer: 2D32 > r > BZona de Fresnell: 2D321 D331 r 0'6|| – *VFORMULARIO =c/f (m)=300/f(MHz) BDiagr. d radiac. norm: (,) t(,)= P4MAX 2B1Bancho a -3dB: t(,)=1/2 /PLANO E/dir.rad,dir.corrientes /PLANO H/dir.rad,dir.opuesta BDensidad d pot. rad: |E|321+|E|32 (,)= BPot. total radiada: 2 P4r1=| | (,)r321sendd 401 40 P4r1=I4o321R4r BDirectividad: P4MAX1 P4MAX14r32 1 4 D=== P4r1 || ||(,)r321sendd ||t(,)sendd 4r321 |E41|321/ (120321I321/r321) D= I321Rr/4r321(#dipI321Re(Zin)/4r321) BResistencia de prdidas: 1 l 1 2a R=ɷ=ɷ s 2bfactor d penetracion BEficiencia de perdidas: Rr = G=D Rr+R BRelaciones importantes: lef321 D 4 Aef= = 4R4r1 Aef 32 BMomento dipolar magntico: m=|| I n' ds' s' BCampos radiados: e3-jkr1cos(kHcos) jk4x,y,z1d/2 E=j60Iɷ|e | r sen 2B1B/en dipolos: I4m1 -jkr cos(kHcos)-cos(kH) E41=je 2r sen E41=0 *VANTENAS ELEMENTALES BDipolo elemental: a<0, 0<< dchas a,b>0, 0>>- izq Coef. de desacoplo: 42 C4p1=|e4t1e4r1|+1 Mv8D5sKudt*Sx`5t$U44BTDU4@CD@sk@CD@skP@CDS@sk@@CDH@sK@c`crk@HrK` d6F&BVv&W6榣@ 斠` m@s[0@ @F` m@s[0`W&F6rrإ2г@CvVRV6F'6` Bv&W6榣@@@@ң@@ @  m@@‡ע@0@S@