A novel planar three‐way triband power divider

A novel planar three-way triple-band power divider is proposed in this article. The circuit is composed of three sections of three transmission lines and planar isolation resistors, which can provide high isolation and good amplitude balance simultaneously at three arbitrary frequencies. The structure of the power divider and the formulas used to determine the design parameters has been given. To verify the validity, a proposed power divider was fabricated and measured at 900, 1800, and 2400 MHz. Both theoretical and simulated results are presented, which are in good agreement with the measured results. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 182–184, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24858