Final_2009_solutions

# Final_2009_solutions - Final exam 2009 Solutions...

This preview shows pages 1–6. Sign up to view the full content.

ECSE 451/Webb/April 09 1 Final_2009_solutions: 1 Final exam, 2009 Solutions Final_2009_solutions: 2 1. Here: There are two sections, connected together and shorted at the ends:

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

View Full Document
ECSE 451/Webb/April 09 2 Final_2009_solutions: 3 For line 2: For a short-circuited transmission line, length l : For line 1: So : Final_2009_solutions: 4 The cut-off frequency must obey this equation.
ECSE 451/Webb/April 09 3 Final_2009_solutions: 5 2. () () 9 9 10 887 . 2 5 . 0 10 5 × + × + = ω β c Final_2009_solutions: 6 At high frequencies, the phase velocity tends to the plane wave velocity in the substrate.

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

View Full Document
ECSE 451/Webb/April 09 4 Final_2009_solutions: 7 The most compact design uses a quarter-wavelength of waveguide, terminated in a short circuit. View from above () () 9 9 10 887 . 2 5 . 0 10 5 × + × + = ω β c Final_2009_solutions: 8 3. I s s s jB G Y + = The Thevenin equivalent:
ECSE 451/Webb/April 09 5 Final_2009_solutions: 9 From part (a): But: since magnitude of I is peak current So:

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

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 10

Final_2009_solutions - Final exam 2009 Solutions...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online