# HW10 - P rd P edition 1994 1 Review Problem Consider a...

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ECE604 Homework 10 Out: Tuesday, March 30, 2004 (Session 21) Due: Tuesday, April 6 (Session 23) [Students with tape delays: due according to session number] Notes: Mid-term exam #2 will be held in class Thursday, April 8 (Session #24). The exam will cover chapters 3, 5, and 6. You may bring a one-sided 8 ½” × 11” formula sheet (one page only) to the exam. An additional formula sheet will be supplied and made available prior to the exam. No calculators, no PDA, etc. at exam. Due to travel obligations, lecture for Tuesday, April 6, 2004 (session #23) will be pre- taped. Prof. Weiner will not be available for office hours on Wednesday, April 7 and Thursday, April 8. The TA, Dennis Lin, will hold expanded office hours the week of the exam. His office hours will be: Tue 3:00-4:30 pm Wed 2:30-4:00 pm Thu 3:00-4:30 pm Problem numbers are from the text by Ramo, Whinnery and Van Duzer (3

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Unformatted text preview: P rd P edition, 1994). 1. Review Problem Consider a parallel-plate transmission line made of perfectly conducting plates. The plates are 1 mm wide and are spaced by 50 µ m. The plates are separated by an insulator with relative dielectric constant ε r = 9. Assume µ = µ o . The transmission line has characteristic impedance o Z 6.3 Ω ± . Assume the transmission line is driven at one end by a sinusoidal voltage source. At the other end a load resistor R = 25 Ω is connected. The transmission line is 10 cm long. For what range of frequencies (work out approximate numbers!) can the transmission-line and resistor combination be modeled as a (frequency-independent) lumped circuit equivalent? Draw the equivalent circuit for this frequency range, and explain your answer. 2 2) 8.2b 3) 8.3b 4) 8.4a 5) 8.4c 6) 8.5a 7) 8.5f...
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