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.
| Original language | English |
|---|---|
| Title of host publication | 2024 54th European Microwave Conference, EuMC 2024 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 529-532 |
| Number of pages | 4 |
| ISBN (Electronic) | 9782874870774 |
| DOIs | |
| Publication status | Published - 2024 |
| Event | 54th European Microwave Conference, EuMC 2024 - Paris, France Duration: 24 Sep 2024 → 26 Sep 2024 |
Publication series
| Name | 2024 54th European Microwave Conference, EuMC 2024 |
|---|
Conference
| Conference | 54th European Microwave Conference, EuMC 2024 |
|---|---|
| Country/Territory | France |
| City | Paris |
| Period | 24/09/24 → 26/09/24 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 9 Industry, Innovation, and Infrastructure
Keywords
- 3D filter
- 3D printing
- Additive manufacturing
- bandstop filter
- high-Q filter
- monolithic integration
- spherical filter
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