Tunable bandpass filter with wide tuning range of center frequency and bandwidth based on circular SIW

被引：5

作者：

Wang, Xian ^{[1
]}

Zhang, Dewei ^{[1
]}

Liu, Qing ^{[1
]}

Deng, Hailin ^{[1
]}

Lv, Dalong ^{[1
]}

机构：

[1] China Natl Digital Switching Syst Engn & Technol, Zhengzhou 450001, Peoples R China

来源：

AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS | 2020年 / 114卷

关键词：

Wide tuning range; Tunable center frequency and bandwidth; Mixed coupling; One transmission zero; Circular SIW;

D O I：

10.1016/j.aeue.2019.153002

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 a circular substrate integrated waveguide (SIW) bandpass filter (BPF) with wide tuning range of center frequency and bandwidth (BW). For designing such a filter, lumped varactors loaded at two metal posts are utilized to adjust the center frequency, and the bandwidth is tuned by varactors mounted between two SIW cavities. One transmission zero (TZ) can be located at the lower or upper stopband by controlling the mixed coupling between two resonators. The external coupling is changed by using two lumped varactors mounted between feedlines and resonators. Eventually, the BPF with tunable center frequency and bandwidth is designed, fabricated and measured. Measured results indicate the center frequency is tuned from 1.48 to 2.61 GHz (up to 55.3%) while maintaining a 3-dB absolute BW of 31 +/- 2 MHz, and the 3-dB bandwidth is tuned from 29 to 250 MHz (up to 8.6). Insertion loss from 1.8 to 4.8 dB is observed within the wide tuning range. (C) 2019 Elsevier GmbH. All rights reserved.

引用

页数：5

共 14 条

[1]

Abdelfattah M, 2018, IEEE MTT S INT MICR, P1091, DOI 10.1109/MWSYM.2018.8439654

[2] Substrate Integrated Waveguide Filters [J].

Chen, Xiao-Ping ;

Wu, Ke .

IEEE MICROWAVE MAGAZINE, 2014, 15 (07) :75-83

[3] 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

[4]

Hong J.-S, 2011, Microstrip Filters for RF/Microwave Applications, V2nd

[5]

Jagatheesan K, 2014, IEEE I C COMP INT CO, P1

[6] A novel dual-band tunable notch filter with controllable center frequencies and bandwidths [J].

Maragheh, Samaneh Sedighi ;

Dousti, Massoud ;

Dolatshahi, Mehdi ;

Ghalamkari, Behbod .

AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS, 2018, 88 :70-77

[7]

Qin XL, 2017, 2017 IEEE INTERNATIONAL CONFERENCE ON PROGNOSTICS AND HEALTH MANAGEMENT (ICPHM), P1, DOI [10.1109/ICPHM.2017.7998297, 10.1109/ATNAC.2017.8215431]

[8] A Half-Mode Substrate-Integrated-Waveguide Tunable Filter Using Packaged RF MEMS Switches [J].

Sekar, Vikram ;

Entesari, Kamran .

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2012, 22 (07) :336-338

[9] Narrow-band microwave filter design [J].

Swanson, Daniel G., Jr. .

IEEE MICROWAVE MAGAZINE, 2007, 8 (05) :105-114

[10] Bandpass-to-Bandstop Reconfigurable Tunable Filters with Frequency and Bandwidth Controls [J].

Yang, Tao ;

Rebeiz, Gabriel M. .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2017, 65 (07) :2288-2297

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