Twofold Reflectionless Filters of Inverse-Chebyshev Response With Arbitrary Attenuation

A twofold circuit is introduced as a reflectionless filter having inverse-Chebyshev response with arbitrary attenuation in the reject band. The proposed configuration consists of two complementary circuits. A methodology and some equations are described to exactly design a prototype odd order low-pass reflectionless filter. Finally, a filter is built and measured to verify the presented configuration and its design equations.