Frequency-Agile SIW-Based Filtenna Using Evanescent-Mode Cavity Resonators
Frequency-Agile SIW-Based Filtenna Using Evanescent-Mode Cavity Resonators
复制标题
使用倏逝模式腔谐振器的基于 SIW 的频率捷变 Filtenna
DOI：
10.1109/lawp.2023.3298567
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发表时间：
2023
影响因子：
4.2
通讯作者：
H. Sigmarsson
中科院分区：
文献类型：
--
作者：
R. Agasti;Adrian L. Bauer;J. Ruyle;H. Sigmarsson
这封信中提出了一种使用基板集成波导（SIW）技术的小型化二阶可调谐滤波器天线。应用带通滤波器合成的耦合谐振器理论将高 $Q$ 倏逝模式 (EVA 模式) 腔谐振器与辐射缝隙天线组合成二阶滤波器天线单元。部署外部远程线性执行器以实现频率重新配置。通过改变 EVA 模式腔的柱顶和调谐盘之间的临界间隙尺寸来改变谐振器的电容负载。使用非接触式电容调谐方案，滤波器天线的中心频率在 2 至 2.6 GHz (26%) 之间变化。制造的滤波器天线原型在其调谐范围内实现了 2.7 至 5.2 dB 的增益。除了保持模块紧凑外，滤波器天线还由于集成的滤波功能而实现了更高的带外辐射抑制。据作者所知，所提出的滤波器天线是文献中第一个经过完整实验验证的基于可调谐腔的 SIW 滤波器天线。
A miniaturized second-order tunable filtenna using substrate-integrated waveguide (SIW) technology is presented in this letter. The coupled-resonator theory for bandpass filter synthesis is applied to combine high-$Q$ evanescent-mode (EVA-mode) cavity resonators with a radiating slot antenna into a second-order filtenna unit. External long-range linear actuators are deployed to achieve frequency reconfiguration. The capacitive loading of the resonator is varied by changing the critical gap size between the posttop and tuning disc of the EVA-mode cavity. Using a contactless capacitive tuning scheme, the filtenna's center frequency is varied from 2 to 2.6 GHz (26%). The manufactured filtenna prototype exhibits a realized gain ranging from 2.7 to 5.2 dB across its tuning range. In addition to maintaining a compact module, the filtenna also achieves higher out-of-band radiation suppression due to the integrated filtering capability. To the best of authors' knowledge, the proposed filtenna is the first tunable cavity-based SIW filtenna presented in the literature with complete experimental validation.
DOI：
10.1109/tmtt.2017.2742479
发表时间：
2017-08
影响因子：
4.3
作者：
C. Schuster;A. Wiens;Florian Schmidt;M. Nickel;M. Schüßler;R. Jakoby;H. Maune
通讯作者：
C. Schuster;A. Wiens;Florian Schmidt;M. Nickel;M. Schüßler;R. Jakoby;H. Maune