Split-Type Input-Reflectionless Multiband Filters

被引：44

作者：

Gomez-Garcia, Roberto ^{[1
]}

Munoz-Ferreras, Jose-Maria ^{[1
]}

Psychogiou, Dimitra ^{[2
]}

机构：

[1] Univ Alcala, Dept Signal Theory & Commun, Alcala De Henares 28871, Spain

[2] Univ Colorado, Dept Elect Comp & Energy Engn, Boulder, CO 80309 USA

来源：

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2018年 / 28卷 / 11期

基金：

美国国家科学基金会;

关键词：

5G circuit; absorptive filter; bandpass filter (BPF); bandstop filter (BSF); dual-band filter; microstrip filter; multiband filter; planar filter; reflectionless filter; split-type filter;

D O I：

10.1109/LMWC.2018.2868091

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：

Split-type multiband bandpass filters (BPFs) and bandstop filters (BSFs) with input-reflectionless capabilities are reported in this letter. In the multiband BPF case, they consist of a duplexing network with a split-type multiband BPF channel-main channel-and its complementary resistively terminated multiband BSF channel-auxiliary channel-that absorbs the input-signal energy that is not transmitted by the overall filter. The multiband BSF counterpart is obtained from the latter by interchanging the roles of the main and auxiliary channels. The operational foundations, theoretical design rules, and synthesis examples of the devised split-type input-reflectionless multiband filters under a coupling-matrix-based formulation are described. Furthermore, for practical validation purposes, two microstrip prototypes corresponding to 3.85-/4.55-GHz second-order dual-band BPF and BSF circuits are constructed and measured.

引用

页码：981 / 983

页数：3

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