问题：低噪声放大器的设计制作与调试

MGA-71543 LNA_S2PMGA71543 S2P (3V10mA)
S2P SNP1 File="3v10ma.s2p" StabFact StabFact1 StabFact1=stab_fact(S) Mu Mu1 Mu1=mu(S) MuPrime MuPrime1 MuPrime1=mu_prime(S) Zopt Zopt1 Zopt1=zopt(Sopt,PortZ1) Term Term1 Num=1 Z=50 Ohm
1 Ref 2

Term Term2 Num=2 Z=50 Ohm

StabFact

Mu

S-PARAMETERS
S_Param SP1 Start=0.1 GHz Stop=6.0 GHz Step=0.05 GHz

MuPrime

N
Zopt

Stability is always the first

Stability Factor (K)
1.4 1.2

StabFact1 MuPrime1 Mu1

1.0 0.8 0.6 0.4 0 1 2 3 4 5 6

freq, GHz

K<1 Need to add circuits to stabilize the amplifier

Stability Circuits
S2P SNP1 File="3v10ma.s2p" R R1 R=2 Ohm Term Term2 Num=2 Z=50 Ohm
StabFact

Term Term1 Num=1 Z=50 Ohm

1 Ref

2

StabFact StabFact1 StabFact1=stab_fact(S) Mu Mu1 Mu1=mu(S)

L L1 L=0.5 nH R=

Mu

MuPrime

MuPrime MuPrime1 MuPrime1=mu_prime(S)

S-PARAMETERS