The Modern Network Theory Approach to Microwave Filter Design

A review of the modern network theory approach to microwave filter design based on Richards' transformation is given. Basic concepts are discussed, including the use of Kuroda's identities and the specialized theory of optimum filter forms. Applications of the theory presented to elliptic-function filters, special rejectiontype filters, and multiplexers are given. Throughout the presentation, emphasis is placed on basic methods and techniques rather than on detailed design procedures.