A miniature low-loss slow-wave tunable ferroelectric bandpass filter from 11-14 GHz

被引：32

作者：

Papapolymerou, John ^{[1
]}

Lugo, Cesar ^{[1
]}

Zhao, Zhiyong ^{[2
]}

Wang, Xiaoyan ^{[2
]}

Hunt, Andrew ^{[2
]}

机构：

[1] Georgia Inst Technol, Sch Elect & Comp Engn, Atlanta, GA 30332 USA

[2] Ngimat Inc, Chamblee, GA 30341 USA

来源：

2006 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM DIGEST, VOLS 1-5 | 2006年

关键词：

D O I：

10.1109/MWSYM.2006.249653

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 presents for the first time a miniature, tunable slow-wave 2-pole ferroelectric filter with low loss operating from 11.5-14 GHz (20% tuning). The filter consists of sections of coplanar waveguide transmission lines that are loaded with high quality factor tunable ferroelectric capacitors with BST material. Each resonator section is loaded with a total of 12 capacitors resulting in a very compact size. Coupling between the slow-wave resonators, as well as matching with the input/output ports is achieved via inductive stubs. The measured insertion loss varies from 5.4 to 3.3 dB from 11.5-14 GHz and a bias voltage range from 0-30 V. The third-order intercept of the filter was found to be around 31 dBm. To the best of our knowledge, this is the smallest loss performance for such a filter in the 11-14 GHz range.

引用

页码：556 / 559

页数：4

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