Compact UWB Bandpass Filter With Dual Notched Bands Using Defected Ground Structures

被引：80

作者：

Song, Yonghui ^{[1
]}

Yang, Guo-Min ^{[1
]}

Wen Geyi ^{[1
]}

机构：

[1] Fudan Univ, Key Lab Informat Sci Electromagnet Waves, Dept Commun Sci & Engn, Shanghai, Peoples R China

来源：

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2014年 / 24卷 / 04期

基金：

美国国家科学基金会;

关键词：

Defected ground structures (DGS); dual notched bands; ultra-wideband (UWB); MULTIPLE-MODE RESONATOR; IMPLEMENTATION; LINE;

D O I：

10.1109/LMWC.2013.2296291

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 letter proposes a novel ultra-wideband (UWB) bandpass filter (BPF) with dual notched bands using triangular defected ground structures (DGS). Two symmetrical dumbbell-shaped interdigital capacitors are formed to improve the BPF's performance. Three pairs of tapered defected ground structures are studied and adopted to suppress the spurious passband by assigning their transmission zeros towards the out of band signal. A small UWB BPF is obtained by combining these two structures. One of the arms in coupled-line sections is extended and folded to create a notched band at 5.3 GHz, and a meander line slot is developed to create another notched band at 7.8 GHz. Simulated and measured results are in good agreement indicating that the proposed BPF has a passband from 2.8 to 11.0 GHz and a wide stopband bandwidth with 20 dB attenuation up to 30.0 GHz.

引用

页码：230 / 232

页数：3

共 14 条

[1] A design of the low-pass filter using the novel microstrip defected ground structure [J].

Ahn, D ;

Park, JS ;

Kim, CS ;

Kim, J ;

Qian, YX ;

Itoh, T .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2001, 49 (01) :86-93

[2] Novel UWB Bandpass Filter Using Stub-Loaded Multiple-Mode Resonator [J].

Chu, Qing-Xin ;

Wu, Xiao-Hu ;

Tian, Xu-Kun .

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2011, 21 (08) :403-405

[3] Compact UWB Filter With Double Notch-Bands Using Multilayer LCP Technology [J].

Hao, Zhang-Cheng ;

Hong, Jia-Sheng .

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2009, 19 (08) :500-502

[4] Compact ultra-wideband bandpass filter using harmonic-suppressed multiple-mode resonator [J].

Lim, T. B. ;

Sun, S. ;

Zhu, L. .

ELECTRONICS LETTERS, 2007, 43 (22) :1205-1206

[5] An improved 1-D periodic defected ground structure for microstrip line [J].

Liu, HW ;

Li, ZF ;

Sun, XW ;

Mao, JF .

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2004, 14 (04) :180-182

[6] Compact Ultra-Wideband (UWB) Bandpass Filter With Ultra-Narrow Dual- and Quad-Notched Bands [J].

Luo, Xun ;

Ma, Jian-Guo ;

Yeo, Kiat Seng ;

Li, Er-Ping .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2011, 59 (06) :1509-1519

[7] Compact UWB Bandpass Filter With Dual Notch Bands Using Open Circuited Stubs [J].

Sarkar, Pankaj ;

Ghatak, Rowdra ;

Pal, Manimala ;

Poddar, D. R. .

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2012, 22 (09) :453-455

[8] Asymmetric dual-line coupling structure for multiple-notch implementation in UWB bandpass filters [J].

Song, K. ;

Xue, Q. .

ELECTRONICS LETTERS, 2010, 46 (20) :1388-1390

[9] Compact UWB Bandpass Filter With Dual Notched Bands Based on SCRLH Resonator [J].

Wei, Feng ;

Wu, Qiu Yi ;

Shi, Xiao Wei ;

Chen, Li .

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2011, 21 (01) :28-30

[10] Implementation of compact UWB bandpass filter with a notch-band [J].

Wong, Sai Wai ;

Zhu, Lei .

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2008, 18 (01) :10-12

← 1 2 →