Design a stepped-impedance low-pass filter having a cutoff frequency of 3 GHz and a fifth-order 0.5 dB equal-ripple response. Assume R0 = 50, Zl = 15, and Zh = 120. (a) Find the re - quired electrical lengths of the five sections, and use CAD to plot the insertion loss from 0 to 6 GHz. (b) Lay out the microstrip implementation of the filter on an FR4 substrate having εr = 4.2,

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Engineering

Leo Singh

28 January, 22:45

Design a stepped-impedance low-pass filter having a cutoff frequency of 3 GHz and a fifth-order 0.5 dB equal-ripple response. Assume R0 = 50, Zl = 15, and Zh = 120. (a) Find the re - quired electrical lengths of the five sections, and use CAD to plot the insertion loss from 0 to 6 GHz. (b) Lay out the microstrip implementation of the filter on an FR4 substrate having εr = 4.2,

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Lawrence Beck · Answer 1

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