Integrated Waveguide Filter Amplifier Using the Coupling Matrix Technique
Integrated Waveguide Filter Amplifier Using the Coupling Matrix Technique
复制标题
DOI：
10.1109/lmwc.2019.2901892
复制
发表时间：
2019-03
影响因子：
3
通讯作者：
Yang Gao;X. Shang;Cheng Guo;J. Powell;Yi Wang;M. Lancaster
中科院分区：
文献类型：
--
作者：
Yang Gao;X. Shang;Cheng Guo;J. Powell;Yi Wang;M. Lancaster
本文介绍了一种采用全谐振腔滤波匹配结构的集成波导型滤波放大器。首次提出了一个$N，+，4$主动耦合矩阵来描述耦合拓扑。设计中采用了高Q值的波导谐振器，实现了输入和输出端口的同时滤波和匹配。通过滤波器综合，实现了晶体管与波导谐振器的简单集成，其中结构和阻抗转换采用了混合波导/微带结构。文中构造了一个X波段器件作为演示，但该技术也适用于更高频率的波导，因为它的低损耗而被广泛使用。
This letter presents an integrated waveguide filter amplifier using all resonator-based filtering and matching structure. An $N\,+\,4$ active coupling matrix is proposed for the first time to describe the coupling topology. High- $Q$ waveguide resonators are featured in the design, achieving simultaneous filtering and matching at both the input and output ports. Easy integration of the transistor with waveguide resonators is demonstrated through filter synthesis, where a hybrid waveguide/ microstrip structure is implemented for the structural and impedance transition. In this letter, an X-band device is constructed as a demonstrator, but the technique is also applicable to higher frequencies where waveguide is widely utilized for its low loss.