Multiway in-phase sinusoidal microwave power divider

Abstract

Multiport power dividers form the fundamental block in microwave and millimeter wave circuits that divides the input RF power by arbitrary ratios. The power divider is basically a device that splits the input power into a number of smaller amounts of power at multiple ports (N) to feed a number of branching circuits with isolation between the output ports. It has wide range of applications such as in antenna system, power amplifiers, power oscillators and balanced mixers A good power divider should feature high isolation at output ports, excellent phase and amplitude balance, low insertion loss, higher power handling capability, compact in size and wider bandwidth. The basic approach to design a good power divider is to have a performance comparison on the basic type of the power divider like triangular, sectorial and sinusoidal. The sinusoidal power divider having the most advantage compare with triangular and sectorial because of it geometry could achieve port alignments and structure compactness. Diffractive hole introduces in the circuit layout can improved the performance of the device. The proposed power divider is aimed to have features of high isolation at the output ports, excellent phase and amplitude balance, low insertion loss, higher power handling capability, compact in size and wider bandwidth. Good power dividers allow the system to have better performance in its application by giving better signal clarity, low non-linear signal distortion, reduce number of amplifiers, lower investment and cost effectiveness.