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Добавление источника фликкерного шума в модель транзистора

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Всем привет, имеется модель гуммеля-пуна в спайсе, например транзистора BFP843. Как я понимаю у него существует только один источник фликкерного шума в эмиттере с параметрами KF и AF. Хочется добавить второй источник фликкерного шума в базовую цепь, пусть даже пока без корреляции с источником в эмиттере. Может кто-то может посоветовать литературу или как это можно сделать?

Скрытый текст

! NOTE: This file was translated from a SPICE file.
! SPICE orders the nodes of active devices as Drain Gate Source.
! The AWR convention is Gate Drain Source. The translator has reordered
! the nodes for active device elements (B, J, M and Q). The user should
! verify the node order for subcircuits representing active devices.
! Polynomial controlled sources have been decomposed to linear devices
! when possible.  The user should verify the use of these devices.
! *************************************************************            
! Infineon Technologies AG         
! VALID UP TO 12 GHZ       
! >>> BFP843 <<<        
! (C) 2013 Infineon Technologies AG       
! Version 1.0 MAR 2013        
! ************************************************************* 
! - Please use the global SPICE GP parameter TEMP to specify the 
! junction temperature of the device in your application to get
! correct simulation results. This procedure is necessary because
! the GP model does not consider the self heating of the device.
! - TEMP is calculated by TEMP=TA+Pdc*(RthJS+RthSA). The junction 
!   temperature TEMP is the sum of the ambient temperature TA and 
!   the increment of temperature caused by the dissipated DC power Pdc. 
! - RthJS is the thermal resistance between the junction and the 
!   soldering point. RthJS for this device is 405 K/W. RthSA is the 
!   thermal resistance of the PCB, from the soldering point to the 
!   ambient. For determination of RthSA please refer to Infineon's 
!   Application Note "Thermal Resistance Calculation" AN077.
! - The model has been verified in the junction temperature range
!   -25 C to +125 C.
! - TNOM=25  C is the nominal ambient temperature during measurement
!   for the parameter extraction. Please do not change this value.
! **************************************************************  
! .OPTION TNOM=25, GMIN= 1.00e-12
! BFP843 C B E1 E2 
   TEMP  C
    RES  OH
   COND  /OH
    IND  H
    CAP  F
    LNG  M
    ANG  DEG
    VOL  V
    CUR  A
    PWR  DBM

RES 35 3 ID="RE1" R=0.001
RES 35 4 ID="RE2" R=0.001
CAP 22 33 ID="CBEPAR" C=3.005e-013
CAP 22 11 ID="CBCPAR" C=4.552e-014
CAP 11 33 ID="CCEPAR" C=4.625e-013
CAP 11 66 ID="Cfeed" C=5.2e-012
RES 66 22 ID="Rfeed" R=1032
CAP 66 33 ID="Cfeedpar" C=1.675e-013
IND 22 20 ID="LB" L=7.965e-010
IND 33 30 ID="LE" L=2.56e-010
IND 11 10 ID="LC" L=6.465e-010
CAP 20 30 ID="CBEPCK" C=4e-014
CAP 20 10 ID="CBCPCK" C=1e-015
CAP 10 30 ID="CCEPCK" C=4e-014
IND 20 2 ID="LBX" L=2.5e-010
IND 30 35 ID="LEX" L=9.953e-011
IND 10 1 ID="LCX" L=2.5e-010
RES 55 5 ID="R_CS_npn" R=500
SDIODE 33 25 ID="D1" IS=3e-015 N=1 RS=2.846 CJ0=4e-014 &
SDIODE 5 25 ID="D2" IS=3e-015 N=1 RS=4700 CJ0=4.5e-014 &
RES 22 25 ID="R_NBL_fdb" R=3.2
RES 33 5 ID="R_PS" R=0.2
RES 30 5 ID="RSUB" R=0.486
SDIODE 5 15 ID="D3" IS=6.911e-016 N=1.1 RS=1380 CJ0=9.5e-014 &
SDIODE 23 33 ID="D4" IS=3.5e-015 N=1 RS=0.2 CJ0=3e-014 &
SDIODE 23 15 ID="D5" IS=3.5e-015 N=1.02 RS=4.7 CJ0=3e-014 &
RES 15 11 ID="R_NBL_e11g" R=1.8
GBJT 22 11 33 55 ID="Q1" IS=2.226e-016 BF=850.3 NF=0.997 &
    VAF=375.1 IKF=0.1713 ISE=4.539e-015 NE=1.958 &
    BR=98.98 NR=0.9941 VAR=1.375 IKR=0.05974 ISC=1.578e-015 &
    NC=1.8 RB=6.217 IRB=0 RBM=1.774 RE=0.329 RC=7.24 &
    XTB=-2.276 EG=1.11 XTI=0 CJE=8.091e-014 VJE=0.9141 &
    MJE=0.06778 TF=1.02369e-012 XTF=1 VTF=0.1832 &
    ITF=0.5237 PTF=0.5 CJC=3.125e-014 VJC=0.6892 &
    MJC=0.5349 XCJC=0.8 TR=1e-009 CJS=2.575e-013 &
    MJS=0.5599 VJS=0.4343 FC=0.5715 KF=3.12e-016 &
! *************************************************************     
DEF4P 2 1 3 4 "BFP8431"


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4 часа назад, Patifon_Kakao сказал:

Как я понимаю у него существует только один источник фликкерного шума в эмиттере с параметрами KF и AF.

Как помню, Kf и Af (еще вроде порядок частоты может быть) относятся к току базы. Реальных параметров фликкер-шума в моделях не встречал, скорее для "галочки" проставлены цифры.

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