Compact microstrip lowpass filter with ultra-wide stopband

被引：42

作者：

Ge, L. ^{[1
]}

Wang, J. P. ^{[2
]}

Guo, Y. -X. ^{[3
]}

机构：

[1] Nanjing Elect Devices Inst, State Key Lab Monolith Integrated Circuit & Modul, Nanjing, Peoples R China

[2] Nanjing Univ Sci & Technol, Ministerial Key Lab JGMT, Nanjing 210094, Peoples R China

[3] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117548, Singapore

来源：

ELECTRONICS LETTERS | 2010年 / 46卷 / 10期

关键词：

D O I：

10.1049/el.2010.0357

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 with an ultra-wide stopband is proposed. To achieve wide stopband suppression and compact size, both symmetrically loaded resonant patches and meander transmission line are adopted. A demonstration filter with 3 dB cutoff frequency at 1.3 GHz has been designed, fabricated and measured. The proposed filter also exhibits a very wide stopband of 152%, and is able to suppress the eleventh-harmonic response together with a small size of 0.12 lambda(g) x 0.071 lambda(g), where lambda(g) is the guided wavelength at 1.3 GHz.

引用

页码：689 / 690

页数：2

共 6 条

[1] High selectivity lowpass filter using negative-ε metamaterial resonators [J].

Ali, A. ;

Khan, M. A. ;

Hu, Z. .

ELECTRONICS LETTERS, 2007, 43 (09) :528-530

[2]

DENG K, 2009, ELECTRON LETT, V45, P463

[3] Compact microstrip lowpass filter with sharp roll-off and wide stop-band [J].

Li, J. -L. ;

Qu, S. -W. ;

Xue, Q. .

ELECTRONICS LETTERS, 2009, 45 (02) :110-U34

[4] Compact and selective lowpass filter with very wide stopband using tapered compact microstrip resonant cells [J].

Li, L. ;

Li, Z. -F. ;

Wei, Q. -F. .

ELECTRONICS LETTERS, 2009, 45 (05) :267-U44

[5] Low insertion-loss, sharp-rejection and compact microstrip low-pass filters [J].

Mandal, Mrinal Kanti ;

Mondal, Priyanka ;

Sanyal, Subrata ;

Qhakrabarty, Ajay .

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2006, 16 (11) :600-602

[6]

Pozar D.M., 2005, MICROWAVE ENG, V3rd, P412

← 1 →