RF_Designer wrote on Jun 18th, 2010, 2:50am:That attached figure is wrong ?? I do not think so..!!
That is a reason why I say you can't understand usage of Agilent ADS.
You can't understand what are necessary for FET component at all.
(1) There is no meaningful Net Label for FET symbol.
(2) FET symbol is "MOSFET_NMOS" in your schematic. This is wrong.
(3) Model refered by "MOSFET_NMOS" is unknown "x990x9".
(4) Even if "x990x9" is used, there is no model definition component for "x990x9"
(5) All values of L and C are unitless and factorless.
(6) If you want to use this as subcircuit, place port and create symbol.
You have to use followings if you want to make schematic.
http://edocs.soco.agilent.com/display/ads2009/EE+HEMT1+%28EEsof+Scalable+Nonline...http://edocs.soco.agilent.com/display/ads2009/EE+HEMT1+Model+%28EEsof+Scalable+N...RF_Designer wrote on Jun 18th, 2010, 2:50am:How i don't understand usage of Agilent ADS ??
I can't understand why you can say you are familiar with Agilent ADS, because you can't understand such easy things.
Read documents of Agilent ADS surely.
http://edocs.soco.agilent.com/display/ads2009/Importing+a+Netlist+FileYou can't use "Netlist Import" for ADS's syntax netlist.
"Netlist Import" function is valid for netlists of the following.
Spice2G
Spice3
PSpice
HSpice
Spectre
RF_Designer wrote on Jun 18th, 2010, 2:50am:For the nec_activelibraryv4.0.zip, yes i know it and i used it in ADs
but if you compare the s-parameters with the S2P you will find a big difference,
i.e, the given paramters do not fit with the S2P file
I will compare S-parameter calculated from "NE3514S02_v127.ads" with "NE3514S02v2_8-26_2_5.s2p" when I have spare time.
The attached figure is a method where subcircuit schematic is not required.
"NE3514S02_v127.ads"
Quote:simulator lang=ads
define NE3514S02_v127 ( D G S )
parameters Noise=
"EEHEMTM1":NE3514S02_v127 _net125 _net127 _net126 Ugw=160 um N=1 Noise=yes _M=1
model EEHEMTM1 EE_HEMT1 Vto=-990.9 mV Gamma=39.57m Vgo=-346.6 mV Vdelt=0 Vch=593.2 mV Gmmax=84.53 mH \
Vdso=2 Vsat=711.5 mV Kapa=124.6 mS Peff=1.495 Vtso=-10 Is=28.39 pA N=1.633 Ris=5.777 \
Rid=1 mOhm Tau=2.861 psec Cdso=140.4 fF Rdb=1e9 Cbs=160 fF Vtoac=-1.005 Gammaac=42.32m \
Vdeltac=0 Gmmaxac=79m Kapaac=53.82 mS Peffac=14.47 Vtsoac=-10 Gdbm=20 uF Kdb=33.33 \
Vdsm=100 C11o=290 fF C11th=55.18 fF Vinfl=-1.058 Deltgs=2.939 Deltds=415.2 mV Lambda=50.75m \
C12sat=30.26 fF Cgdsat=12.72 fF Kbk=0 Vbr=15 Nbr=2 Idsoc=0.1 Rd=947.1 mOhm Rs=862.9 mOhm Rg=1.417 \
Ugw=160 um Ngf=1 Vco=-382.6 mV Vba=1 Vbc=301 mV Mu=1.836m Deltgm=354.5m Deltgmac=178.6m \
Alpha=300 mV Tnom=25 Rgtc=0 Rdtc=0 Rstc=0 Vtotc=0 Gmmaxtc=0 Gammatc=0 Vinfltc=0 Vtoactc=0 \
Gmmaxactc=0 Gammaactc=0 Xti=3 Kmod=1 Kver=1
L:Ld2 _net120 D L=7.1 pH Noise=yes
C:cds1 S D C=4.2 fF
C:cds S _net120 C=82.8 fF
L:Lg1 _net101 G L=1.98 pH Noise=yes
C:cgs S _net101 C=78.7 fF
C:cgs1 S G C=6.5 fF
C:cgd _net101 _net120 C=11.63 fF
L:Ls _net126 S L=100.3 pH Noise=yes
L:Ld _net125 _net120 L=561.6 pH Noise=yes
L:Lg _net127 _net101 L=583.5 pH Noise=yes
end NE3514S02_v127
NE3514S02_v127:Q1 d g s