Electrical Engineering 117A - Fall 1998 - Schwarz - Midterm 1 - EECS 117A Midterm#1 Fall 1998 EECS 117A Fall 1998 Midterm#1 Professor S.E Schwarz

Electrical Engineering 117A - Fall 1998 - Schwarz - Midterm 1

This preview shows page 1 - 3 out of 4 pages.

EECS 117A, Midterm #1, Fall 1998 EECS 117A, Fall 1998 Midterm #1 Professor S.E. Schwarz Instructions: You may use the textbook, a pocket calculator, and drafting instruments. Write answers in the space provided. Show your work on the Smith chart. Problem #1 (30 points) The circuit below contains a Thevenin voltage source and two transmission lines of length l1 and l2. Let T = l1/U (where U is the phase velocity), l2 = 1.25l1, Rs = Z0/2. The voltage source v(t) = 10 volts for 0 <= t <= 0.2T, and zero for other times. Graph the voltage between terminals A and A' on the scales below, over the range 0 < t < 4.8T. Show amplitudes of pulses clearly on the graph. (Note: The lines are not the same length, l2 = 1.25l1.) Problem #2 (35 points) (1 of 4)1/27/2007 4:28:53 PM
Image of page 1
EECS 117A, Midterm #1, Fall 1998 In this problem the transmission line has a certain amount of loss, so that k = beta - j*alpha. (a) (10 pts.) Assume the voltage phasor representing the wave moving to the right at position AA' is v_+(A) = V1. What is the phasor
Image of page 2
Image of page 3

You've reached the end of your free preview.

Want to read all 4 pages?

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern

Stuck? We have tutors online 24/7 who can help you get unstuck.
A+ icon
Ask Expert Tutors You can ask You can ask You can ask (will expire )
Answers in as fast as 15 minutes
A+ icon
Ask Expert Tutors