Abstract

The Bandpass filters play an important role in microwave communication systems and millimeter-wave systems. A parallel coupled band pass filter is one of common devices used mixer in microwave receivers. The mixer operates in C-band. Analysis and Simulation results are included in this paper from 4.162GHz to 4.536GHz, the measured return loss is greater than 20 dB, and the measured insertion loss is less than 0.16 dB at the center frequency. The band pass filters are designed with micro strip line. The transmission lines are synthesized and the development of the parallel coupled micro strip filters are simulated by using Advanced Design Software.

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