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The Journal of The Korea Institute of Intelligent Transport Systems Vol.9 No.5 pp.67-71

이중 대역 L형 임피던스 변환기

박면주

Dual-band L-section Impedance Transformer

Myun-Joo Park

Abstract

This paper proposes new dual-band impedance transformers based on the L-section circuit topology. The proposed circuits consist of a transmission line section with a stub line either at the source or at the load end. The dual-band operating conditions are analyzed in detail and simple design equations are derived in terms of the line lengths and impedances for the different circuit topologies and load conditions. The dual-band operation is confirmed through the design, fabrication and measurement in microstrip circuits based on the proposed method.