Monolithically-Integrated Quarter-Spherical Bandstop Filters

被引：0

作者：

Psychogiou, Dimitra ^{[1
,2
]}

Elmiger, Christian ^{[3
]}

Nikolaou, Symeon ^{[4
,5
]}

Vryonides, Photos ^{[4
,5
]}

机构：

[1] Univ Coll Cork, Sch Engn, Cork, Ireland

[2] Tyndall Natl Inst, Cork, Ireland

[3] Stryker, Cork, Ireland

[4] Frederick Res Ctr, Nicosia, Cyprus

[5] Frederick Univ, Dept Elect Comp Engn & Informat, Nicosia, Cyprus

来源：

2024 54TH EUROPEAN MICROWAVE CONFERENCE, EUMC 2024 | 2024年

基金：

爱尔兰科学基金会;

关键词：

Additive manufacturing; bandstop filter; high-Q filter; monolithic integration; spherical filter; 3D filter; 3D printing;

D O I：

10.23919/EuMC61614.2024.10732163

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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 (f(cen)): 11.9 GHz, 3-dB rejection fractional bandwidth (BW): 4.5%, maximum stopband rejection: 61 dB and a four-resonator BSF with f(cen): 11.8 GHz, 3-dB rejection bandwidth (BW): 4%, maximum stopband rejection: 85 dB.

引用

页码：529 / 532

页数：4

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