003_1GHz_amplifier : Tuned 1GHz Amplifier Schematic
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.
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 *
Graphics
