Power dividing systems based on a rectangular coaxial line

Abstract

L- and S-band phased array antennas are widely used in modern radiolocation systems. Existing power dividers for L- and S-band phased array antennas have several disadvantages. Waveguide based systems are sophisticated and have a large mass. Optical and conventional coaxial line based systems have a large size. Microstrip based systems are compact and have a low mass, but the maximum input power level is quite low. In this paper, the design of microwave devices based on a multilayer rectangular dielectric filled coaxial line is presented and the recommendations on its use in design of multichannel power dividers are given. The paper demonstrates that this type of power divider design results in lower mass, is compact and has high maximum input power level. Thus, multichannel power dividers based on a multilayer rectangular dielectric filled coaxial line are the most suitable for use in modern L- and Sband radiolocation systems.