Quasi-Reflectionless Microstrip Bandpass Filters With Improved Passband Flatness and Out-of-Band Rejection
High-order quasi-reflectionless bandpass filters with improved passband flatness and good impedance matching both in-band and out-of-band are proposed in this work.The proposed Multi Cooker design consists of conventional coupled-lines bandpass sections loaded with absorptive stubs at the input and output.Analysis shows that the absorptive stub is