2026-04-14T02:34:07Zhttps://recercat.cat/oai/request

oai:recercat.cat:2117/1214942026-01-22T04:01:14Zcom_2072_1033col_2072_452950

Multimode ultra-wideband filters by using a grounded open ring resonator Moradi, Bahareh Martínez-Iranzo, Úrsula García García, Joan Universitat Politècnica de Catalunya. RFEMC - Grup de Radiofreqüència i Compatibilitat Electromagnètica en Xarxes de Comunicacions Àrees temàtiques de la UPC::Enginyeria electrònica Àrees temàtiques de la UPC::Enginyeria electrònica::Components electrònics Ressonadors This paper reports a novel multimode resonator (MMR) ultra-wide band-pass (UWB) filter design using a grounded open ring resonator. The utilization of 30 μm gaps between input ports and the central resonator achieve high coupling level. Five resonant modes are used to perform a 128% fractional bandwidth at 4.3 GHz. The fabricated prototype exhibits a band-pass with insertion losses around 0.5 dB. A theoretical model based on transmission lines matrices is proposed and used to explore the limits of the design through different parametric analysis. Excellent agreement between theoretical predictions, electromagnetic simulations and measurement are found. Postprint (author's final draft) 2016 Article Moradi, B., Martínez-Iranzo, Ú., Garcia-Garcia, J. Multimode ultra-wideband filters by using a grounded open ring resonator. "Microwave and optical technology letters", 2016, vol. 58, núm. 8, p. 2001-2004. 0895-2477 https://hdl.handle.net/2117/121494 10.1002/mop.29959 eng Open Access 4 p. application/pdf