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Unformatted text preview: 1 ECE 166 Microwave Circuits and Systems Homework #3 Due Thursday October 29, 2009 Problem 1: Build the following circuits based on a t-line with impedance Zo=50 and eff =4.5 (this is for ). This problem is to show you that you can synthesize any inductor/capacitor you wish using simple transmission lines. Many times, we do not use lumped components at microwave frequencies because t- lines do not resonate and have high Q within a frequency range!). a) A load inductor with a value of j80 at 12 GHz (specify the length of the shorted t-line in mm and in degrees). What is the equivalent value of L in nH? Plot the reactance and the equivalent value of L at 2-20 GHz? Compare with an ideal inductor (L does not change) and specify the frequency of operation of this implementation. b) A load capacitor with a value of j40 at 12 GHz (specify the length of the open t-line in mm and in degrees). What is the value of C in pF? Plot the reactance and the equivalent value of C at 2-20 GHz? degrees)....
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- Fall '10