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1、1•计算噪声系数圆、工作功率圆、资用功率圆Eqnnum_NFcircles=5EqnNFstepsize=0.2Setstepsizesandnumberofcircles,here.EqnNoise_circles=ns_circle(NFmin[m2]+NFstep_size*[0::num_NFcircles],NFmin[m2],Sopt(m2l1Rn[m2]/50151)EqnNoise_circleMin=ns_circle(NFmin[m2],NFmin[m2],Sopt(m2]1Rn[m2]/5
2、0t51)EqnOut=S(2,2R(S(1,2)*S(2,1fm5)/(1-S(1,1)*m5)Eqnin=conj(m5)num_GAcircles=5GAstep_size=0.25GAcirc【es=ga_circle(S[mzj,max_gain(S[m2])・GAstep_sizeY0::num_GAcircles])EqnGAcircleMax=ga-circle(S[m2]?max_gain(S[m2]))2•选取一个绝对稳定的频点f=3.2GHzmlfreq=3.220GHzStabFactl
3、=1.091LoeLLqecoLse①乏qssfreq,GHzRFFrequencySelector【zba上©z-sld①a>AAS::o一—oo302000i—m2indep(m2)=3.200E9vs([0::sweep_size(freq)-1],freq)=220.0001.00G1.50G2.00G2.50G3.00G3.50G4.00G4.50G5.00Gfreq,Hz3.对应最小噪声系数nf=1.8251）理想线路图S-PARAMETERS
4、S_ParamSP1Start=1.0GHzStop-
5、5GHzStep=10MHzTermTerm1Num=1Z=50OhmTLOC=TL2Z=50.0OhmE=49.855F-3.2GHz2）增益丿SPTLINTL1Z=50OhmE=2.175F=3.2GHzHI—TLINTL4Z=50.0OhmE=34.484F=3.2GHzsp_ip_AT-41511_2_19950125SNI1Bia:=MBjt:Vce=2.7Vlc=5mAHFret
6、uency=M{0.10-5.10}GHz*'TL5Z=50.0OhmE=34.632F=3.2GHzTermTerm2
7、Num=2Z=50Ohmfreq,GHz3）反射系数((CMCM)smp((Lismp4）噪声系数5）微带线路图MSubS-PARAMETERSMSUBMSublH-1mmEr=2.2TermTermlNum=1Z=50Ohm6）增益S_ParamSP1Start=1.0GHzStop=5GHzStep=10MHzMLOCTL3Subst=MMSub1*W=3.07548mmL=9.43938mmmlfreq=3.200GHzdB(S(2,1))=8.235L7Smp7）反射系数Mur=1Cond-1.0E+5
8、0Hu=3.9G+034milT=0milTanD=0Rough=0milMLINTL1Subst=HMSub1-W=307548mmL=0.411807mmSPspSNIBiafFreeipAT-415112199501251=MBjt:Vce=2.7Vlc=5mAMuency=*{0.10-5.10)GHz1'MUNTL2Subst='MSubl'W=3.07548mnL=6.529090mrihMLSCTL4Subst=MMSub1HW=3.07548mmL=6.557110mm1.01.52.02.53
9、.03.5freq,GHz4.04.55.0TermTerm2Num-2Z=50Ohm1.01.52.02.53.03.54.04.5o2■3■40■-505.0((二)smp(CMCM)smpfreq,GHz8）噪声系数1008621.01.52.02.53.03.54.04.55.0freq,GHz4.选取噪声系数为2.025D理想线路图腊
10、S・PARAMETERSISParamSP1Start=1.0GHzStop=5GHzStep=10MHzTermTermlNum=1Z=50OhmTLINTL1Z=5
11、0OhmE=168.816F=32GHzZ=50.0OhmE=39.012F=3.2GHz2）增益mlfreq=3.200GHzdB(S(2,1))=6.9883）反射系数丿SPTLINTL4Z=50OhmE=34.693F=3.2GHzsp_ip_AT-41511_2_19950125SNI1Bia：=*Bjt:Vce=2.7Vlc=5mAwFreeuency=M{0.10-5.10
