Final_2008_solutions

Final_2008_solutions - Final exam, 2008 Solutions...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
ECSE 451/Webb/April 08 1 Final_2008_solutions: 1 Final exam, 2008 Solutions Final_2008_solutions: 2 1. [5] A uniform guide consists of two perfect conductors separated by air. There are no other materials. What kind of mode is the dominant mode, at low frequencies? A TE or TM B TEM C hybrid, but quasi-TEM Dh y b r i d , b u t not quasi-TEM 2. [5] Which of the following modes of a circular waveguide has an attenuation, due to wall losses, that decreases as the frequency increases? AT M 01 B TE 01 CT E 11 DT M 11
Background image of page 1

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

View Full DocumentRight Arrow Icon
ECSE 451/Webb/April 08 2 Final_2008_solutions: 3 3. [5] If you decrease the losses of a resonator that is part of a microwave oscillator, which of the following would happen? A The centre frequency of the oscillator would increase. B The centre frequency of the oscillator would decrease. C The bandwidth of the signal generated would increase. D The bandwidth of the signal generated would decrease. dB L f f W U Q 3 0 0 Δ = = ω 4. [5] Which of the following is not a III-V (3-5) semiconductor?
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 9

Final_2008_solutions - Final exam, 2008 Solutions...

This preview shows document pages 1 - 3. Sign up to view the full document.

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