Design of the Microstrip Bandstop Filter With High Insertion Loss

被引：15

作者：

Wu, Cheng-Han ^{[1
]}

Tang, Chen-Chan ^{[1
]}

Tang, Ching-Wen ^{[2
]}

机构：

[1] Natl Chung Cheng Univ, Dept Elect Engn, Chiayi 621, Taiwan

[2] Natl Chung Cheng Univ, Adv Inst Mfg Hightech Innovat, Ctr Innovat Res Aging Soc, Dept Commun Engn, Chiayi 621, Taiwan

来源：

IEEE TRANSACTIONS ON COMPONENTS PACKAGING AND MANUFACTURING TECHNOLOGY | 2019年 / 9卷 / 01期

关键词：

Bandstop filter; coupled line; wide stopband; DEFECTED MICROSTRIP; COMPACT; SHARP;

D O I：

10.1109/TCPMT.2018.2879898

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A novel planar bandstop filter with high insertion loss is proposed. With the assistance of coupled lines with open stubs at the input and output ports, the newly proposed structure is different from the conventional bandstop filter. With the coupled lines mentioned above, selectivity and stopband rejection of the newly proposed planar bandstop filter can be effectively enhanced. Moreover, the attenuation level of the proposed structure can be controlled by adjusting the resonant frequency of each resonator. Design equations can be obtained with the assistance of the lossless transmission line model and parallel coupled-line model. In order to validate the analysis, a bandstop filter, with a fractional bandwidth of 14% for the measured stopband at 50 dB, is fabricated.

引用

页码：122 / 128

页数：7

共 25 条

[1] COMPACT REALIZATION OF COMBLINE BANDPASS FILTER INTEGRATED WITH DEFECTED MICROSTRIP STRUCTURE BANDSTOP FILTER [J].

Almalkawi, M. J. ;

Devabhaktuni, V. K. .

PROGRESS IN ELECTROMAGNETICS RESEARCH LETTERS, 2012, 35 :99-105

[2]

Collin R. E., 2001, Foundations for Microwave Engineering, V2nd

[3]

Esmaeili M., 2015, 2015 Asia-Pacific Microwave Conference (APMC). Proceedings, P1, DOI 10.1109/APMC.2015.7411622

[4] A COMPACT MICROSTRIP BANDSTOP FILTER [J].

Fallahzadeh, S. ;

Tayarani, M. .

PROGRESS IN ELECTROMAGNETICS RESEARCH LETTERS, 2009, 11 :167-172

[5] Short-Through-Line Bandstop Filters Using Dual-Coupled Resonators [J].

Guyette, Andrew C. ;

Naglich, Eric J. .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2016, 64 (02) :459-466

[6] Compact and wideband microstrip bandstop filter [J].

Hsieh, MY ;

Wang, SM .

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2005, 15 (07) :472-474

[7]

Kazerooni M, 2009, PR ELECTROMAGN RES S, P895

[8] Tunable 500-1200-MHz Dual-Band and Wide Bandwidth Notch Filters Using RF Transformers [J].

Ko, Chih-Hsiang ;

Tran, Allen ;

Rebeiz, Gabriel M. .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2015, 63 (06) :1854-1862

[9] Frequency Response Control in Frequency-Tunable Bandstop Filters [J].

Lee, Juseop ;

Naglich, Eric J. ;

Chappell, William J. .

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2010, 20 (12) :669-671

[10] Compact Lowpass Filters With Sharp and Expanded Stopband Using Stepped Impedance Hairpin Units [J].

Li, Lin ;

Li, Zheng-Fan ;

Mao, Jun-Fa .

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2010, 20 (06) :310-312

← 1 2 3 →