@inbook{01796d321f864308a1c2ba6b85b6ffec,
title = "Monolithically-Integrated Quarter-Spherical Bandstop Filters",
abstract = "This paper discusses a unique design and integration concept for high-quality factor (Q) monolithically-integrated 3D bandstop filters (BSFs) using quarter-spherical resonators. Monolithic integration is facilitated by: i) stereolithography apparatus (SLA) 3D printing and ii) EM design methodologies focused on the realization of a self-supported geometry. A coaxial excitation scheme is proposed to facilitate utilization in connectorized RF systems. For proof-of-concept validation purposes, two BSF prototypes were designed, manufactured, and tested. They include a two-resonator BSF configuration with center frequency (fcen): 11.9 GHz, 3-dB rejection fractional bandwidth (BW): 4.5\%, maximum stopband rejection: 61 dB and a four-resonator BSF with fcen: 11.8 GHz, 3-dB rejection bandwidth (BW): 4\%, maximum stopband rejection: 85 dB.",
keywords = "3D filter, 3D printing, Additive manufacturing, bandstop filter, high-Q filter, monolithic integration, spherical filter",
author = "Dimitra Psychogiou and Christian Elmiger and Symeon Nikolaou and Photos Vryonides",
note = "Publisher Copyright: {\textcopyright} 2024 European Microwave Association (EuMA).; 54th European Microwave Conference, EuMC 2024 ; Conference date: 24-09-2024 Through 26-09-2024",
year = "2024",
doi = "10.23919/EuMC61614.2024.10732163",
language = "English",
series = "2024 54th European Microwave Conference, EuMC 2024",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "529--532",
booktitle = "2024 54th European Microwave Conference, EuMC 2024",
address = "United States",
}
