BALANCED POWER DIVIDERS/COMBINERS

Abstract

This chapter discusses several kinds of balanced‐to‐balanced power divider/ combiner. As the key component in a balanced RF transceiver, the concept of balanced‐to‐balanced power divider/combiner is proposed, which divides the input differential‐mode power into several ways with good port isolation and common‐mode suppression. To extend the applications of balanced‐to‐balanced power dividers, the chapter designs a dual‐band balanced‐to‐balanced power divider. It introduces balanced‐to‐balanced Wilkinson power dividers implemented using microstrip technology. The desired performance of the balanced‐to‐balanced Gysel power divider has been implemented with the half‐mode substrate integrated waveguides (SIWs) ring structure, and a high power handling capability can be expected. The balanced‐to‐balanced power dividers are designed in Wilkinson and Gysel topologies and realized in microstrip line and half‐mode SIW. They are also designed with arbitrary power division ratio, bandpass filtering response, and dual‐band operation.