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Synthesis of a tunable ring filter: Proof-of-concept with fixed implementations at D-band
International Journal of RF and Microwave Computer-Aided Engineering ( IF 1.7 ) Pub Date : 2021-06-10 , DOI: 10.1002/mmce.22761
Pedro Rynkiewicz 1 , Anne‐Laure Franc 1 , Fabio Coccetti 2 , Matthias Wietstruck 3 , Mehmet Kaynak 3 , Gaëtan Prigent 4
Affiliation  

The working frequencies of telecommunication systems are rapidly increasing and sub-THz applications will soon be required. In that context, the current article presents the synthesis of a tunable ring filter. The considered filter introduces a new degree of freedom that allows to meet targeted specifications in terms of central frequency and bandwidth. Thanks to a capacitor displacement, the equivalent characteristic impedance can be tuned independently of its equivalent electrical length. The existing filter synthesis is modified to take this concept into account and thus provide a synthesis tunable in central frequency and bandwidth. The proof-of-concept of the design procedure is achieved in SiGe BiCMOS 0.25 μm technology with the implementation and measurement of eight non-tunable circuits in the D-band.

中文翻译:

可调环形滤波器的合成:在 D 波段固定实现的概念验证

电信系统的工作频率正在迅速增加,很快就会需要亚太赫兹应用。在这种情况下,本文介绍了可调谐环形滤波器的合成。所考虑的滤波器引入了新的自由度,可以满足中心频率和带宽方面的目标规范。由于电容器位移,等效特性阻抗可以独立于其等效电气长度进行调整。修改现有的滤波器合成以考虑这个概念,从而提供中心频率和带宽的合成可调。设计过程的概念验证是在 SiGe BiCMOS 0.25 μm 技术中通过 D 波段中八个非可调电路的实现和测量实现的。
更新日期:2021-08-03
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