Design of Tunable Coaxial Bandpass Filter Based on Embedded Stepped Impedance Resonators

被引：2

作者：

Zhou, Xubin ^{[1
]}

Huo, Junjie ^{[1
]}

机构：

[1] South China Univ Technol, Sch Elect & Informat Engn, Guangzhou 510640, Peoples R China

来源：

IEEE ACCESS | 2023年 / 11卷

关键词：

Coaxial resonator; constant bandwidth; wide tuning range; tunable filter; CONSTANT ABSOLUTE BANDWIDTH;

D O I：

10.1109/ACCESS.2023.3284462

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper describes a method for designing tunable coaxial bandpass filters based on an inserted coaxial stepped impedance resonator (SIR). The miniaturization of the coaxial resonator is realized by the shape of the stepped impedance structure. In addition, an extended tuning range can be achieved by utilizing the SIR. A third-order tunable bandpass filter with constant absolute bandwidth is designed and fabricated for verification. The fabricated filter exhibits a wide tuning range from 2.13 GHz to 3.54 GHz (52.4%), over which the absolute bandwidth (ABW) varies within 97.5 +/- 5.5 MHz (+/- 5.6%).

引用

页码：58947 / 58952

页数：6

共 19 条

[1]

Cameron R., 2018, MICROWAVE FILTERS CO

[2] Multifunctional Reconfigurable Filter Using Transversal Signal-Interaction Concepts [J].

Feng, Wenjie ;

Shang, Yuxia ;

Che, Wenquan ;

Gomez-Garcia, Roberto ;

Xue, Quan .

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2017, 27 (11) :980-982

[3] High-Q Narrowband Tunable Combline Bandpass Filters Using MEMS Capacitor Banks and Piezomotors [J].

Fouladi, Siamak ;

Huang, Fengxi ;

Dong, Winter ;

Mansour, Raafat R. .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2013, 61 (01) :393-402

[4] A Tunable Quarter-Wavelength Coaxial Filter With Constant Absolute Bandwidth Using a Single Tuning Element [J].

Gowrish, B. ;

Mansour, Raafat R. .

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2021, 31 (06) :658-661

[5]

Hoft M., 2008, P GERM MICR C HAMB G, P1

[6]

Huang F, 2009, 2009 EUROPEAN MICROWAVE CONFERENCE, VOLS 1-3, P559

[7] Compact Planar Tunable Filter With Constant Absolute Bandwidth and Wide-Frequency Tuning Range Using DGS Coupling Structure [J].

Liu, Yun ;

Liu, Lingyun ;

Liang, Chen ;

Majid, Irfan .

IEEE ACCESS, 2021, 9 :157259-157266

[8]

Park S., 2010, U.S. Patent, Patent No. [7825753B2, 7825753]

[9] Varactor-Tuned Compact Dual-Mode Tunable Filter With Constant Passband Characteristics [J].

Tsai, Han-Yun ;

Huang, Ting-Yi ;

Wu, Ruey-Beei .

IEEE TRANSACTIONS ON COMPONENTS PACKAGING AND MANUFACTURING TECHNOLOGY, 2016, 6 (09) :1399-1407

[10] Design of Compact Quasi-Elliptic Bandpass Filters Based on Coaxial Inset Resonators [J].

Widaa, Abdulrahman ;

Bartlett, Chad ;

Hoft, Michael .

IEEE ACCESS, 2023, 11 :18739-18749

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