Wideband coupled resonator based ultra-wideband 3dB power divider
In this paper, a 3dB ultra-wideband (UWB) power divider has been designed using three wide-band coupled resonators. The resonator unit which consists of symmetric interdigital coupled input/output lines, resonates in two basic for broadening the operating bandwidth. Output ports maintains equal distance from the input in order to achieve in-phase power divisions. The prototype structure provides an equal magnitude, in-phase power division and adequate isolation at outputs from 3.82 to 10.2 GHz, which almost complies the FCC defined UWB frequency range. It has advantages like single layer, via free and compact in size.
Design of a compact ultra-wideband power divider
A novel ultra-wideband (UWB) power divider on microstrip line is proposed in this paper. This divider is formed by installing three open stubs and two aperture-backed interdigital coupled-lines to the traditional two-section Wilkison power divider. Finally, a compact power divider is designed and fabricated, and it is demonstrated that 3 dB power splitting from one input port to two output ports is achieved. In addition, good impedance matching at all the three ports and excellent isolation between two output ports are obtained over the specified 3.1-10.6 GHz UWB range.
Novel bandpass‐response power divider with high frequency selectivity using centrally stub‐lOaded resonators
This article presents a novel bandpass‐response power divider with high frequency selectivity. The centrally stub‐loaded resonators are applied to this power divider in order to provide bandpass‐filtering frequency response. In addition, the presented power divider has three transmission zeros, which can be used to improve the frequency selectivity. The measured results demonstrate the good performance of the fabricated bandpass‐response power divider with high selectivity. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1560–1562, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27644