Elektronika Lineárne dvojbrány

Lineárne dvojbrány: `A=`U2/`U1; `A=Re `A+j*Im`A; ú`Aç=Ö(Re2`A+Im2`A); j=arctg(Im`A/Re`A); a=20logú`Aç [dB]; `A- napäťový
prenos; a- útlm; Integ. RC: `A=1/(1+j*w*R*C)=1/(1+j*(f/fm)); t=R*C; Integ. RL: `A=1/(1+j*w*(L/R))=1/(1+j*(f/fm)); t=L/R; Integ. RC a
RL: Re`A=1/(1+(f2/fm2)); Im`A=(-f/fm)/(1+(f2/fm2)); ú`Aç=1/Ö(1+(f2/fm2)); fm=1/(2*p*t); j=arctg(Im`A/Re`A)=-arctg(f/fm); a=-10log(1+
+(f2/fm2)) [dB]; Deriv. RC: `A=(j*w*R*C)/ (1+j*w*R*C)=(j*(f/fm))/(1+ j*(f/fm)); t=R*C; Deriv. RL: `A=(j*w*(L/R))/(1+j*w*(L/R))=(j*
*(f/fm))/(1+ j*(f/fm)); t=L/R; Deriv. RC a RL: Re`A=(f2/fm2)/(1+(f2/fm2)); Im`A=(f/fm)/(1+(f2/fm2)); ú`Aç=(f/fm)/Ö(1+(f2/fm2)); fm=1/(2*p*t);
j=arctg(fm/f); a=20log(f/fm)-10log(1+(f2/fm2)) [dB]; Admitančná náhrada: i1=y11*u1+y12*u2; i2=y21*u1+y22* u2; y11=i1/u1 - u2=0; y12= i1/u2 –
- u1=0; y21= i2/u1 – u2=0; y22= i2/u2 – u1=0; SE: ib=y11e*ube+y12e*uce; ic=y21e*ube+y22e*uce; SB: ie=y11b*ueb+y12b*ucb; ic=y21b*ueb+y22b*ucb; SC:
ib=y11c*ubc+y12c*uec; ie=y21c*ubc+y22c*uec; Hybridná náhrada: u1=h11*i1+h12*u2; i2=h21*i1+h22*u2; h11=u1/i1 – u2=0; h12=u1/u2 – i1=0; h21=i2/i1 –
- u2=0; h22=i2/u2 – i1=0; SE: ube=h11e*ib+h12e*uce; ic=h21e*ib+h22e*uce; SB: ueb=h11b*ie+h12b*ucb; ic=h21b*ie+h22b*ucb; SC: ubc=h11c*ib+h12c*uec;
ie=h12c*ib+h22c*uec;.