A Microwave Tunable Bandpass Filter for Liquid Crystal Applications

被引：2
|
作者：
Cao, Weiping [2 ]
Jiang, Di [1 ,2 ]
Liu, Yupeng [3 ]
Yang, Yuanwang [1 ]
Gan, Baichuan [1 ]
机构：
[1] Univ Elect Sci & Technol China, Sch Commun Informat Engn, Chengdu 611731, Peoples R China
[2] Guilin Univ Elect Technol, Guangxi Key Lab Wireless Wideband Commun & Signal, Guilin 541004, Peoples R China
[3] Univ Elect Sci & Technol China, Fundamental Sci EHF Lab, Chengdu 611731, Peoples R China
来源：
FREQUENZ | 2017年 / 71卷 / 7-8期
基金：
中国国家自然科学基金;
关键词：
band-pass filter; microwave; liquid crystals; tunable;
D O I：
10.1515/freq-2016-0068
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：
` In this paper, a novel microwave continuously tunable band-pass filter, based on nematic liquid crystals (LCs), is proposed. It uses liquid crystal (LC) as the electrooptic material to mainly realize frequency shift at microwave band by changing the dielectric anisotropy, when applying the bias voltage. According to simulation results, it achieves 840 MHz offset. Comparing to the existing tunable filter, it has many advantages, such as continuously tunable, miniaturization, low processing costs, low tuning voltage, etc. Thus, it has shown great potentials in frequency domain and practical applications in modern communication.
引用
收藏
页码：293 / 297
页数：5
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