Construction and Design Equations of a Lumped Element Dual-Band Wilkinson Divider

Takeshi OSHIMA
Masataka OHTSUKA
Yoshihiko KONISHI

IEICE TRANSACTIONS on Electronics   Vol.E92-C    No.10    pp.1322-1324
Publication Date: 2009/10/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.E92.C.1322
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Microwaves, Millimeter-Waves
microwave,  dual-band,  Wilkinson divider,  lumped element,  compact,  

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This letter presents the construction and design equations of a lumped element Wilkinson divider with dual-band operation. This divider is constructed of series and parallel LC resonant circuits, and an isolation resistor. The element values can be uniquely determined by giving the two frequencies for operation as a Wilkinson divider and the load resistance. An 800 MHz/2 GHz dual-band Wilkinson divider is treated as a design example, and its operation is verified by simulation and experiment. The fabricated divider has compact dimensions of 3.564 mm2.