A Variable Power Divider Employing Magic-T and Variable Phase Shifter
Narito Morita, Takayuki Tanaka, Ichihiko Toyoda
Abstract
In this letter, a novel variable power divider, which provides wide-range variable power division, is proposed. The proposed power divider consists of a magic-T, variable phase shifter, and 90° delay line. The operating principle of the proposed circuit is theoretically discussed, and a 5-GHz band prototype using a planar magic-T is designed and experimentally evaluated. The measured power division range is more than 14 dB with a small phase difference variation of less than 15°. The concept and feasibility of the proposed variable power divider are experimentally confirmed.
Topics & Concepts
Current dividerPhase shift modulePower dividers and directional couplersWilkinson power dividerPlanarFrequency dividerDivision (mathematics)Electrical engineeringMAGIC (telescope)Power (physics)Electronic engineeringEngineeringComputer sciencePhysicsInsertion lossMathematicsArithmeticComputer graphics (images)Quantum mechanicsMicrowave Engineering and WaveguidesAdvanced Antenna and Metasurface TechnologiesRadio Frequency Integrated Circuit Design