A NOVEL APPROACH TO THE DESIGN OF DUAL-BAND POWER DIVIDER WITH VARIABLE POWER DIVIDING RATIO BASED ON COUPLED-LINES

作者：Lin, Z.; Chu, Q. -X.^*

来源：Progress in Electromagnetics Research-PIER, 2010, 103: 271-284.

DOI：10.2528/PIER10012202

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This paper presents an approach to the design of a novel dual-band power divider with variable power dividing ratio. To achieve dual-band operation, a novel dual-band quarter-wave length transformer based on coupled-lines is proposed, which is used to replace the quarter-wave length transformer in Wilkinson power divider. The proposed dual-band power divider features a simple compact planar structure with wide bandwidth performance for small frequency ratio. Closed-form design equations with one degree of design freedom are derived using even- and odd-mode analysis and transmission line theory. For verification purpose, power dividers operating at 2.4/3.8 GHz with dividing ratios of 2 :1 and 1: 1 are designed, simulated and measured. The simulated and measured results are in good agreement.

• 出版日期2010
• 单位华南理工大学