Microstripline Filter Design

Microstripline Filter DesignEEE 194 RF

Laboratory Exercise 6

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Laboratory #6: Microstripline Filter Design
I. OBJECTIVES

Design microstripline filters using Richard's Transformations and Kuroda's Identities. A. Design a low-pass Chebyshev filter with a cutoff frequency of 600 MHz and 3 dB ripple with equal terminations of 50 . The filter stopband is 50 dB attenuated at 1 GHz. B. Design a high-pass Chebyshev filter with a cutoff frequency of 15 GHz and 3 dB ripple with equal terminations of 50 . The filter stopband is 40 dB attenuated at 7.5 GHz. II. INTRODUCTION

Richard's Transformation and Kuroda's Identities focus on uses of λ/8 lines, for which X = jZo. Richard's idea is to use variable Zo (width of microstripline, for example) to create lumped elements from transmission lines. A lumped low-pass prototype fil