Design of Compact Balanced Filter Using Slow-Wave Half-Mode Substrate Integrated Waveguide

被引：0

作者：

Zhu H.-B. ^{[1
]}

Ji L. ^{[1
]}

Li X.-C. ^{[1
]}

Mao J.-F. ^{[1
]}

机构：

[1] Key Laboratory of Ministry of Education of Design and Electromagnetic Compatibility of High Speed Electronic Systems, Shanghai Jiao Tong University, Shanghai

来源：

Tien Tzu Hsueh Pao/Acta Electronica Sinica | 2023年 / 51卷 / 10期

关键词：

balanced filter; half-mode substrate integrated waveguide; miniaturization; multimode resonator; slow-wave structure;

D O I：

10.12263/DZXB.20220112

中图分类号：

学科分类号：

摘要：

A compact balanced bandpass filter using just one half-mode substrate integrated waveguide (HMSIW) multimode resonator loaded with slow-wave structure is proposed. The filter is composed of a single-layer HMSIW multimode resonator, two pairs of differential feed lines and an array of metal blind holes. The TESW103, TESW104, and TESW105 modes of the HMSIW multimode resonator operate in differential mode (DM) and TESW102 and TESW106 modes operate in common mode (CM), resulting in the features of wide bandwidth. The introduction of slow-wave structure controls the resonant frequency of different modes, and realizes the filter miniaturization. A prototype is designed with a total size of 1.86λg × 0.34λg, the -3 dB DM fractional bandwidth of 32% at the center frequency of 6.5 GHz, and the -20 dB CM fractional suppression bandwidth of 23%. Compared with the previous HMSIW balanced filter, the circuit area of the proposed filter is reduced by 42%. © 2023 Chinese Institute of Electronics. All rights reserved.

引用

页码：2739 / 2746

页数：7

共 14 条

[1]

WU K, DESLANDES D, CASSIVI Y., The substrate integrated circuits - a new concept for high-frequency electronics and optoelectronics, 6th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service, 2003, (2003)

[2]

BOZZI M, WINKLER S A, WU K., Broadband and compact ridge substrate-integrated waveguides, IET Microwaves, Antennas & Propagation, 4, 11, (2010)

[3]

LIU B, HONG W, WANG Y Q, Et al., Half mode substrate integrated waveguide (HMSIW) 3-dB coupler, IEEE Microwave and Wireless Components Letters, 17, 1, pp. 22-24, (2007)

[4]

NIEMBRO-MARTIN A, NASSERDDINE V, PISTONO E, Et al., Slow-wave substrate integrated waveguide, IEEE Transactions on Microwave Theory and Techniques, 62, 8, pp. 1625-1633, (2014)

[5]

WU C H, WANG C H, CHEN C H., Stopband-extended balanced bandpass filter using coupled stepped-impedance resonators, IEEE Microwave and Wireless Components Letters, 17, 7, pp. 507-509, (2007)

[6]

BENG LIM T, ZHU L., Highly selective differential-mode wideband bandpass filter for UWB application, IEEE Microwave and Wireless Components Letters, 21, 3, pp. 133-135, (2011)

[7]

WANG X H, XUE Q, CHOI W W., A novel ultra-wideband differential filter based on double-sided parallel-strip line, IEEE Microwave and Wireless Components Letters, 20, 8, pp. 471-473, (2010)

[8]

CHU H, LI P, CHEN J X., Balanced substrate integrated waveguide bandpass filter with high selectivity and common-mode suppression, IET Microwaves, Antennas & Propagation, 9, 2, pp. 133-141, (2015)

[9]

XU X, WANG J P, ZHU L., A new approach to design differential-mode bandpass filters on SIW structure, IEEE Microwave and Wireless Components Letters, 23, 12, pp. 635-637, (2013)

[10]

HO M H, LI C S., Novel balanced bandpass filters using substrate integrated half-mode waveguide, IEEE Microwave and Wireless Components Letters, 23, 2, pp. 78-80, (2013)

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