A High-Performance Dual-Mode Filtering Power Divider with Simple Layout

Gang Zhang; Xuedao Wang; Jia-Sheng Hong; Jiquan Yang

doi:10.1109/LMWC.2018.2789821

A High-Performance Dual-Mode Filtering Power Divider with Simple Layout

Gang Zhang^*, Xuedao Wang, Jia-Sheng Hong, Jiquan Yang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

43 Citations (Scopus)

51 Downloads (Pure)

Abstract

This letter presents a simple microstrip dual-mode filtering power divider (FPD) with sharp frequency selectivity and good in-band isolation. A new topology is proposed to integrate only a single resonator and a resistor to realize the dual functions of the power division and filtering. In order to further improve its frequency selectivity and obtain wide upper stopband, three open-ended stubs are integrated into the input and outputs of the FPD, respectively. The presented FPD stands out from those in the literature, by both improved performance and simple design layout. For validation, a prototype FPD operating at 2.2 GHz with 3-dB fractional bandwidth of 18.2% is designed and fabricated. The experimental results agree well with the simulated ones. The results indicate that the new FPD exhibits better than 32-dB in-band isolation along with 24-dB harmonic suppression up to 6.28 GHz ( $2.85~f-{0}$ ).

Original language	English
Pages (from-to)	120-122
Number of pages	3
Journal	IEEE Microwave and Wireless Components Letters
Volume	28
Issue number	2
Early online date	31 Jan 2018
DOIs	https://doi.org/10.1109/LMWC.2018.2789821
Publication status	Published - Feb 2018

Keywords

Dual-mode resonator
filtering power divider (FPD)
good isolation

ASJC Scopus subject areas

Condensed Matter Physics
Electrical and Electronic Engineering

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10.1109/LMWC.2018.2789821

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title = "A High-Performance Dual-Mode Filtering Power Divider with Simple Layout",

abstract = "This letter presents a simple microstrip dual-mode filtering power divider (FPD) with sharp frequency selectivity and good in-band isolation. A new topology is proposed to integrate only a single resonator and a resistor to realize the dual functions of the power division and filtering. In order to further improve its frequency selectivity and obtain wide upper stopband, three open-ended stubs are integrated into the input and outputs of the FPD, respectively. The presented FPD stands out from those in the literature, by both improved performance and simple design layout. For validation, a prototype FPD operating at 2.2 GHz with 3-dB fractional bandwidth of 18.2% is designed and fabricated. The experimental results agree well with the simulated ones. The results indicate that the new FPD exhibits better than 32-dB in-band isolation along with 24-dB harmonic suppression up to 6.28 GHz ( $2.85~f-{0}$ ).",

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N2 - This letter presents a simple microstrip dual-mode filtering power divider (FPD) with sharp frequency selectivity and good in-band isolation. A new topology is proposed to integrate only a single resonator and a resistor to realize the dual functions of the power division and filtering. In order to further improve its frequency selectivity and obtain wide upper stopband, three open-ended stubs are integrated into the input and outputs of the FPD, respectively. The presented FPD stands out from those in the literature, by both improved performance and simple design layout. For validation, a prototype FPD operating at 2.2 GHz with 3-dB fractional bandwidth of 18.2% is designed and fabricated. The experimental results agree well with the simulated ones. The results indicate that the new FPD exhibits better than 32-dB in-band isolation along with 24-dB harmonic suppression up to 6.28 GHz ( $2.85~f-{0}$ ).

AB - This letter presents a simple microstrip dual-mode filtering power divider (FPD) with sharp frequency selectivity and good in-band isolation. A new topology is proposed to integrate only a single resonator and a resistor to realize the dual functions of the power division and filtering. In order to further improve its frequency selectivity and obtain wide upper stopband, three open-ended stubs are integrated into the input and outputs of the FPD, respectively. The presented FPD stands out from those in the literature, by both improved performance and simple design layout. For validation, a prototype FPD operating at 2.2 GHz with 3-dB fractional bandwidth of 18.2% is designed and fabricated. The experimental results agree well with the simulated ones. The results indicate that the new FPD exhibits better than 32-dB in-band isolation along with 24-dB harmonic suppression up to 6.28 GHz ( $2.85~f-{0}$ ).

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A High-Performance Dual-Mode Filtering Power Divider with Simple Layout

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Keywords

ASJC Scopus subject areas

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