By Robert B. Cooper
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Additional info for Introduction to Queueing Theory, Second Edition
C) W hen the transit time of a printed circuit board causes delays in pulses that threaten the synchronization of a high speed circuit, we call this effect ___________. (d) Three ways to increase Z0 for a coaxial line are to __________ the radius of the inner conductor, ________ the radius of the outer conductor, or _________ the permittivity of the dielectric material. 2 True or false: (a) If two transmission lines have the same per-unit-length capacitance, they will have the same characteristic impedance Z0.
With this information, she is able to answer the following questions and win the bet! Now it is your turn: (a) W hat is the propagation velocity on the transmission line? (b) W hat is the relative permittivity of the insulating material between the conductors of the coax? (c) W hat is the capacitance per unit length for the cable? (d) W hat is the diameter of the center conductor? (e) W hat is the characteristic impedance of the line? 7 Design a coaxial cable with characteristic impedance Z0 = 50 W.
4). In this example, reflection and transmission coefficients are used to determine the incremental changes in the transient signal. 0 V. In this example, there are no reflections from the generator end of the line, so there is no need to consider the situation where two signals simultaneously impinge on the junction from different directions. When that situation does arise, the resulting voltages are the superposition of the contributions due to the two incident signals. 3: Equivalent circuit for the junction during the interval T < t < 3T.