Analysis and Design of Reflectionless Filters for C Band Applications

Analysis and design of reflectionless filters for C-band applications is presented in this paper. Reflectionless low-pass, high-pass, band-pass and band-stop filters are designed using well known design equations and the response of the filters is analyzed using simulation tool. Such filters are main building blocks in various communication systems in which the reflection from the out-of-band termination is undesirable. The analyzed filters exhibit very low reflection, below -40dB, in the out of band, and very low insertion loss in the pass band. In addition to the lumped-element filters, this work also extends the analysis of reflectionless band-pass filter using transmission lines.