Minimum Required Versions: Gateway 2.12.8.R, SmartSpice 3.16.11.R

This schematic example ( amplifier_schematic.png
) shows a 1GHz tuned amplifier designed using the VBIC level=5 NPN bipolar model.

The control file ( tuned1GHz_AMP.ctr) displays the specifics of the .AC statement and the VBIC model .

The OUT node is marked with both phase and gain markers, which specify these save macros into the input file:

.save VDB(OUT) .save VP(OUT)

Running the simulation produces the gain and phase ( waveforms.png
) outputs as shown. To split the waveforms to appear on separate charts, right click and choose Split All/Selected Charts in SmartView.

Graphics

Input Files

tuned1GHz_AMP.ctr

****************************************
.MODEL vbic_npn NPN (  
+LEVEL   = 5              TNOM    = 27  
+RCI     = 100.4118061    RCX     = 21.0073718
+VO      = 10             GAMM    = 1.612176E-12
+HRCF    = 1              RBX     = 250
+RBI     = 20             RE      = 3
+RS      = 0              RBP     = 0
+IS      = 1.019031E-17   NF      = 1
+NR      = 1.005          FC      = 0.5
+CJE     = 8E-15          PE      = 0.6
+ME      = 0.2            CJC     = 3.3E-15
+CJEP    = 1.54E-15       PC      = 0.6
+MC      = 0.05           CJCP    = 1.540104E-15
+PS      = 0.9837837      MS      = 0.5893953
+IBEI    = 7E-20          WBE     = 1
+NEI     = 1              IBEN    = 1E-16          
+NEN     = 1.5543186      IBCI    = 3.594252E-19   
+NCI     = 0.996          IBCN    = 1.717776E-17
+NCN     = 1.202521       AVC1    = 1E-3           
+AVC2    = 1E-5           ISP     = 1.332E-19      
+WSP     = 1              NFP     = 1
+IBEIP   = 0              IBENP   = 0
+IBCIP   = 0              NCIP    = 1
+IBCNP   = 0              NCNP    = 2
+VEF     = 55.9455555     VER     = 2.2052435      
+IKF     = 0.0350195      IKR     = 1.807895E-4    
+IKP     = 2.908576E-5    TF      = 1.001E-16  
+XTF     = 0.03           VTF     = 14.985         
+ITF     = 0.0999         TR      = 2.23542E-9      )
.OP
.AC DEC 100 100MEGHZ 10GHZ 
.GLOBAL GND     
.save all(i) all(v)
.OPTIONS ACCT=2  
.control
set usedegrees=true
.endc 
*