Compact ultra-wide stopband lowpass filter using transformed stepped impedance hairpin resonator

被引：0

作者：

Zhang, Fan ^{[1
]}

Liu, Shuai ^{[1
]}

Zhao, Peng ^{[1
]}

Du, Ming ^{[1
]}

Zhang, Xiaochuan ^{[1
]}

Xu, Jun ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Phys Elect, Chengdu, Sichuan, Peoples R China

来源：

2017 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING | 2017年

基金：

中国国家自然科学基金;

关键词：

lowpass filter; compact; ultra-wide stopband; stepped impedance hairpin resonator; DESIGN;

D O I：

暂无

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：

A compact microstrip lowpass filter (LPF) with ultra-wide stopband using transformed stepped impedance hairpin resonator is proposed. The transformed resonator consists of a stepped impedance hairpin resonator and an embedded hexagon stub loaded coupled-line structure. Without enlarging the size, the embedded structure is introduced to get a broad stopband. A prototype LPF has been simulated, fabricated and measured, and the measurements are in good agreement with simulations. The implemented lowpass filter exhibits an ultra-wide stopband up to 12.01f(c) with a rejection level of 14 dB. In addition, the proposed filter features a size of 0.071.gx 0.103 lambda(g), where lambda(g) is the waveguide length at the cutoff frequency 1.45 GHz.

引用

页码：2227 / 2228

页数：2

共 7 条

[1] Design of microstrip lowpass filter with wide stopband and sharp roll-off using hexangular shaped resonator [J].

Hayati, M. ;

Gholami, M. ;

Vaziri, H. S. ;

Zaree, T. .

ELECTRONICS LETTERS, 2015, 51 (01) :69-U89

[2] Compact lowpass filter using stepped impedance hairpin resonator [J].

Hsieh, LH ;

Chang, K .

ELECTRONICS LETTERS, 2001, 37 (14) :899-900

[3] Compact lowpass filter with wide stopband using stepped impedance hairpin units [J].

Liu, Shuai ;

Xu, Jun ;

Xu, Zhitao .

ELECTRONICS LETTERS, 2015, 51 (01) :67-U87

[4] New Ultra-Wide Stopband Low-Pass Filter Using Transformed Radial Stubs [J].

Ma, Kaixue ;

Yeo, Kiat Seng .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2011, 59 (03) :604-611

[5] Sharp Roll-Off Lowpass Filter With Wide Stopband Using Stub-Loaded Coupled-Line Hairpin Unit [J].

Velidi, Vamsi Krishna ;

Sanyal, Subrata .

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2011, 21 (06) :301-303

[6] Compact wide-stopband lowpass filter using stepped impedance hairpin resonator with radial stubs [J].

Wei, X. B. ;

Wang, P. ;

Liu, M. Q. ;

Shi, Y. .

ELECTRONICS LETTERS, 2011, 47 (15) :862-U1948

[7] Design of compact, broad-stopband lowpass filter using modified stepped impedance hairpin resonators [J].

Yang, M. H. ;

Xu, J. .

ELECTRONICS LETTERS, 2008, 44 (20) :1198-1200

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