一种紧凑型宽频带可重构滤波器

IF 2.9 2区 工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC
Mingen Tian, Zhihe Long, Lijun Feng, Leilei He, Tianliang Zhang
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引用次数: 1

摘要

本文提出了一种基于十字形三模谐振器的宽范围可重构带通滤波器(WRBPF)。在谐振器的两端和外部耦合的位置使用了变容二极管和开关二极管,它结合了低频带和高频带的两种工作模式,极大地拓宽了中心频率($f_{0}$)的可调谐范围。当WRBPF的3dB带宽为180MHz时,$f_{0}$可以从0.78调整到1.93GHz,相对调整范围为84.9%。当$f_{0}$为1.355GHz时,绝对带宽可以从110调整到950MHz,相对带宽调整范围为8.1%-70.1%。此外,WRBPF电路尺寸仅为$0.29\,\,\lambda g\,\、\times 0.22\,\和\lambda g$。实验结果表明,WRBPF不仅结构简单,而且性能优异。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A Compact Wide-Range Frequency and Bandwidth Reconfigurable Filter
This letter proposes a wide-range reconfigurable bandpass filter (WRBPF) based on the cross-shape triple-mode resonator. Varactor diodes and switching diodes are utilized at the ends of the resonator and the positions of external coupling, which combines the two working modes of the low-frequency band and high-frequency band, greatly broaden the tunable range of the center frequency ( $f_{0}$ ). When the 3-dB bandwidth of WRBPF is 180 MHz, $f_{0}$ can be adjusted from 0.78 to 1.93 GHz, and the relative adjustment range is 84.9%. When $f_{0}$ is 1.355 GHz, the absolute bandwidth can be adjusted from 110 to 950 MHz, and the relative bandwidth adjustment range is 8.1%–70.1%. Moreover, the circuit size of WRBPF is only $0.29\,\,\lambda g\,\,\times 0.22\,\,\lambda g$ . The experimental results show that WRBPF has not only a simple structure but also an excellent performance.
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来源期刊
IEEE Microwave and Wireless Components Letters
IEEE Microwave and Wireless Components Letters 工程技术-工程:电子与电气
自引率
13.30%
发文量
376
审稿时长
3.0 months
期刊介绍: The IEEE Microwave and Wireless Components Letters (MWCL) publishes four-page papers (3 pages of text + up to 1 page of references) that focus on microwave theory, techniques and applications as they relate to components, devices, circuits, biological effects, and systems involving the generation, modulation, demodulation, control, transmission, and detection of microwave signals. This includes scientific, technical, medical and industrial activities. Microwave theory and techniques relates to electromagnetic waves in the frequency range of a few MHz and a THz; other spectral regions and wave types are included within the scope of the MWCL whenever basic microwave theory and techniques can yield useful results. Generally, this occurs in the theory of wave propagation in structures with dimensions comparable to a wavelength, and in the related techniques for analysis and design.
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