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Etude et conception de structures de filtrage actif radiofréquence ...

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Chapitre III : Amplificateur différentiel passe-ban<strong>de</strong> du 4 ème ordre faible bruit à 2 GHz<br />

H (f)<br />

H (f)<br />

0<br />

-10<br />

-20<br />

-30<br />

-40<br />

-50<br />

-60<br />

-70<br />

-80<br />

-90<br />

-100<br />

-110<br />

1.8 1.85 1.9 1.95 2 2.05<br />

f(GHZ)<br />

2.1 2.15 2.2 2.25 2.3<br />

0<br />

-10<br />

-20<br />

-30<br />

-40<br />

-50<br />

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-90<br />

H (f)<br />

0<br />

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-40<br />

-60<br />

-80<br />

-100<br />

-120<br />

-140<br />

-160<br />

-180<br />

1.8 1.85 1.9 1.95 2 2.05<br />

f(GHZ)<br />

2.1 2.15 2.2 2.25 2.3<br />

Figure III-31 : Sdc11 Figure III-32 : Sdc12<br />

-100<br />

1.8 1.85 1.9 1.95 2 2.05<br />

f(GHZ)<br />

2.1 2.15 2.2 2.25 2.3<br />

0<br />

-10<br />

-20<br />

-30<br />

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1.8 1.85 1.9 1.95 2 2.05<br />

f(GHZ)<br />

2.1 2.15 2.2 2.25 2.3<br />

Figure III-33 : Sdc21 Figure III-34 : Sdc22<br />

H (f)<br />

122

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