Nonreciprocal filtering power dividers
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Teoría de la Señal y las ComunicacionesPatrocinadores
The authors gratefully acknowledge financial support from Ministerio de Economia y Competitividad of Spain and the European Regional Development Funds for their financial support (Grant No.: PID2019- 103982RB-C42). The work was partially supported by the National Science Foundation with CAREER Grant No. ECCS-1749177. This work was supported by the National Natural Science Foundation of China under Grant 62001520.Fecha de publicación
2021Editorial
ElsevierCita bibliográfica
Zang, Jiawei & Wang, Shouyuan & Melcón, Alejandro & Diaz, J.. (2021). Nonreciprocal filtering power dividers. AEU - International Journal of Electronics and Communications. 132. 153609. 10.1016/j.aeue.2021.153609.Palabras clave
Filtering power dividersSpatio-temporal modulation
Time-modulated resonators
Nonreciprocal devices
Magnetless nonreciprocity
Resumen
We propose the concept of nonreciprocal filtering power dividers, which are compact devices able to merge the functionalities of power dividers and combiners, the selectivity of bandpass filters, and magnetless nonreciprocity from time-modulation. A prototype of this type of devices operating at microwaves has been implemented in microstrip technology. The device is composed of a Wilkinson power divider integrated with two identical microstrip filters based on quarter-wavelength coupled lines. The resonators of the filters are terminated with varactors that are time-modulated using low-frequency harmonic signals from a Coplanar Waveguide (CPW) feeding network printed on the ground plane of the microstrip structure. The resulting compact device behaves as a nonreciprocal power divider, nonreciprocal power combiner, or a common filtering power divider depending on the modulation parameters. In addition, it exhibits electrical frequency reconfigurability (over 15%), high rejection out of ...
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