1. Single-Ended-to-Balanced Filtering Power Dividers With Wideband Common-Mode Suppression.
- Author
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Feng, Wenjie, Zhao, Yu, Che, Wenquan, Gomez-Garcia, Roberto, and Xue, Quan
- Subjects
POWER dividers ,BROADBAND communication systems ,BANDPASS filters ,TRANSMISSION zeros ,ELECTRIC inverters ,WAVELENGTHS - Abstract
Four novel architectures of wideband five-port single-ended-to-balanced power dividers with broadband common-mode suppression are proposed in this paper. The bandpass filtering capability with/without close-to-passband transmission zeros are also incorporated in some of them to obtain multifunctional single-ended-to-differential-mode filtering/power division operation. Two ideal 180° phase inverters are used to replace the conventional half-wavelength transmission line-based inverters in the basic power divider structure so that wideband common-mode rejection and a smaller circuit size are achieved. Quarter-wavelength transmission lines and coupled-line sections are exploited to simultaneously realize the bandpass filtering and wideband power division functionalities. Each five-port power divider exhibits broadband 3-dB single-ended-to-balanced power division, high in-band input–output power-matching levels, high in-band power isolation levels between the two balanced outputs and wideband common-mode rejection. The theoretical analysis, parametric study, and design procedure for the conceived single-ended-to-differential-mode power dividers are provided. Furthermore, for experimental and demonstration purposes, four microstrip prototypes designed at 1 GHz are manufactured and characterized. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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