A Synthesis Procedure for Dual-Band Impedance Transformer Using Chebyshev Polynomials

摘要

In this paper, we propose a new synthesis method which allows the design of equi-ripple dual-band impedance transformers and is based on a straightforward generalization of the well-known Chebyshev synthesis of single band transformer. As compared to a single-band Chebyshev transformer encompassing both required passbands, the proposed design yields significantly better performance.