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A General Design Method for the Broadband Multi-Section Power Divider  

Park, Jun-Seok (순천향대학 정보기술공학부)
Kim, Hyeong-Seok (순천향대학 정보기술공학부)
Im, Jae-Bong (국민대학 전자공학과)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers C / v.51, no.2, 2002 , pp. 85-91 More about this Journal
Abstract
A novel multi-section power divider configuration is Proposed to obtain wide-band frequency performance up to microwave frequency region. Design procedures for the proposed microwave broadband power divider are composed of a Planar multi-section three-Ports hybrid and a waveguide transformer design procedures. The multi∼section power divider is based on design theory of the optimum quarter- wave transformer Furthermore, in order to obtain the broadband isolation performance between the two adjacent output ports, the odd mode equivalent circuit should be matched by using the lossy element such as resistor. The derived design formula for calculating these odd mode∼matching elements is based on the singly terminated filter design theory. The waveguide transformer section is designed to suppress the propagation of the higher order modes such as waveguide modes due to employing the metallic electric wall. Simulation and experiment show excellent performance of multi section power divider.
Keywords
Multi-section power divider; stepped transmission line quarter-wave transformer; general design formula; and isolation performance.;
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