ee541F11HW08

ee541F11HW08 - EE 541 USC Viterbi School of Engineering J...

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EE 541 USC Viterbi School of Engineering J. Choma Homework #08 115 Fall Semester, 2011 U niversity of S outhern C alifornia USC Viterbi School of Engineering Ming Hsieh Department of Electrical Engineering EE 541: Homework Assignment #08 Fall, 2011 Due: 11/22/2011 Choma Problem #42: The distributed line in Figure (P42) is lossless and is characterized by a characteristic impedance of Z o . It operates at a frequency for which its physical length is N- wavelengths. Z o Z in Figure (P42) (a). In terms of Z o and the sine and cosine of appropriate functions of N , derive an expression for the indicated impedance, Z in . (b). Evaluate Z in for line lengths of ¼ and ½ wavelengths. Problem #43: The quarter wavelength transmission line in the schematic diagram of Figure (P43) has a real characteristic impedance of Z o . The circuit is to be designed as a resonant structure having a radial tuned frequency of o . R l C l C s Z o ¼ V o V i V s R s Z( j ) in V x x Figure (P43) (a). In terms of o , load resistance R l , signal source resistance R s , and load capacitance C l , give an expression for capacitance C s , such that the indicated input impedance, Z in (j ω ) , matches the source resistance at frequency o .
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ee541F11HW08 - EE 541 USC Viterbi School of Engineering J...

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