基于周期性方形螺旋结构和液晶材料的宽带毫米波可调谐滤波器

Yupeng Liu, Liaoyuan Zeng, Shutian Zhou, Lingqing Li, S. McGrath
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引用次数: 1

摘要

本文提出了一种基于液晶的毫米波宽带带通中心频率可调滤波器,该滤波器采用微带周期性结构和加载方形螺旋谐振器。当液晶外部偏置电压从0V变为30V时,该滤波器的可调谐范围约为1.59 GHz。滤波器中心频率范围为39.08 GHz ~ 40.67 GHz。滤波器的插入损耗约为3.9dB。该滤波器具有连续可调谐、小型化、调谐电压低等优点。因此,这种滤波器在下一代通信系统中具有很大的应用潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A Wideband Millimeter-wave Tunable Filter based on Periodic Square Spiral Structure and Liquid Crystal Material
In this paper, a novel wideband band-pass center frequency tunable filter is proposed based on liquid crystals for applications at millimeter-waves, which uses a micro-strip periodical structure with loading square spiral resonators. The tunable range of the proposed filter is about 1.59 GHz while the external bias voltage of the liquid crystal turns from 0V to 30V. The filter center frequency ranges from 39.08 GHz to 40.67 GHz. And the insertion loss of filter is about 3.9dB. The proposed filter has many advantages, such as continuously electrically tunability, miniaturization, low tuning voltage, etc. Therefore, a great potential of such a filter has been shown for use in the next communication system.
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