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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/213508
Very compact 3D-printed folded branch-line hybrid coupler based on loaded helical-microstrip transmission lines
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This paper presents a 3D topology for high miniaturization of the well-known hybrid branch-line coupler at the UHF band. A preliminary work already proposed the use of helical-microstrip TLs combined with a folded structure for this purpose. This extended work includes a compactness enhancement by loading the TL segments with capacitors. An study of loaded helical-microstrip TL is reported as well. The coupler prototypes have been simulated and fabricated by using a combination of Additive Manufacturing and copper electroplating. The performance results have been compared to the conventional model showing a good agreement. In order to place the designed devices within the state of the art a figure of merit that combines the compactness and the relative bandwidth has been proposed, showing very good results in terms of miniaturization.
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SALAS BARENYS, Arnau, VIDAL MARTÍNEZ, Neus i LÓPEZ VILLEGAS, José María. Very compact 3D-printed folded branch-line hybrid coupler based on loaded helical-microstrip transmission lines. Integration. the VLSI Journal. Vol. 2022, núm. 84, pàgs. 142-150. ISSN 0167-9260. [consulta: 8 de maig de 2026]. Disponible a: https://hdl.handle.net/2445/213508