Dual-Band Wilkinson Power Dividers Using a Series RLC Circuit

Tadashi KAWAI  Yasuaki NAKASHIMA  Yoshihiro KOKUBO  Isao OHTA  

IEICE TRANSACTIONS on Electronics   Vol.E91-C   No.11   pp.1793-1797
Publication Date: 2008/11/01
Online ISSN: 1745-1353
DOI: 10.1093/ietele/e91-c.11.1793
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Microwave and Millimeter-wave Technologies)
microwave passive components,  dual-band,  power divider,  Wilkinson power divider,  

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This paper describes a novel Wilkinson power divider operating at two arbitrary different frequencies. The proposed divider consists of two-section transmission lines and a series RLC circuit connected between two output ports. The circuit parameters for a dual-band operation are derived by the even/odd mode analysis. Equal power split, complete matching, and good isolation between two output ports are numerically demonstrated. Dual-band and broadband Wilkinson power dividers can be successfully designed. Finally, verification of this design method is also shown by electromagnetic simulations and experiments.