Amplifier_Design

Amplifier_Design - MMIC Design and Technology Amplifier...

Info iconThis preview shows pages 1–8. Sign up to view the full content.

View Full Document Right Arrow Icon
Lecture 5 Amplifier Design MMIC Design and Technology Amplifier Design
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Lecture 5 Amplifier Design Update Amplifier design Impedance matching and stability Text pages 183 – 210 Text pages 210 -243 Smith chart software http://www.sss-mag.com/toptensw.html http://www.sss-mag.com/zip/smith_v191.zip
Background image of page 2
Lecture 5 Amplifier Design Data file for actual device
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Lecture 5 Amplifier Design Stability Transistor is unstable when | Γ in | >1 L L in S S S S a b Γ - Γ + = = Γ 22 12 21 11 1 1 1 Boundary Condition for Stability 1 1 22 12 21 11 = Γ - Γ + L L S S S S
Background image of page 4
Lecture 5 Amplifier Design Stability Transistor is unstable when | Γ out | >1 Boundary Condition for Stability 1 1 22 12 21 22 = Γ - Γ + s s S S S S s s out S S S S a b Γ - Γ + = = Γ 11 12 21 22 2 2 1
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Lecture 5 Amplifier Design Stability Circles on Smith Chart Load or Source stability circle is the locus of points in the Γ L or Γ s plane, for which Γ in or Γ out = 1. If the center of the smith chart is enclosed by the stability circle then all points inside the circle are stable. If the center is not enclosed then all points inside the circle are unstable.
Background image of page 6
Unconditional Stability If all of the smith chart is in a stable region then the transistor is said to be unconditionally stable. Γ
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 8
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/09/2010 for the course EE 599 taught by Professor Povinelli during the Spring '08 term at USC.

Page1 / 24

Amplifier_Design - MMIC Design and Technology Amplifier...

This preview shows document pages 1 - 8. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online