A Novel Miniature Single-Layer Eighth-Mode SIW Filter With Improved Out-of-Band Rejection

被引：30

作者：

Li, Lei ^{[1
]}

Wu, Zengqiang ^{[1
]}

Yang, Ke ^{[1
]}

Lai, Xianjun ^{[1
]}

Lei, Zhenya ^{[1
]}

机构：

[1] Xidian Univ, Sch Elect Engn, Natl Key Lab Antenna & Microwave Techn, Xian 710071, Shaanxi, Peoples R China

来源：

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2018年 / 28卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Circular-ring miniaturized element (CRME); eighth-mode substrate integrated waveguide (EMSIW); transmission zeros; RESONATORS;

D O I：

10.1109/LMWC.2018.2813883

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：

An ultraminiature two-pole bandpass filter based on the eighth-mode substrate integrated waveguide is proposed in this letter. The combination of a coplanar waveguide and circular-ring miniaturized element as a new feeding method is used to improve the out-of-band rejection by introducing two transmission zeros. The measured insertion loss and return loss of the filter operated at 690 MHz are 1.25 dB and better than 20 dB, respectively. The out-of-band rejection is better than 30 dB up to 3 GHz. The equivalent circuit, simulation, and measured results are consistent with one another. The overall size of the filter is 35 mm x 35 mm, which is equivalent to 0.08 lambda(0) x 0.08 lambda(0). A miniaturization factor of 98.8% is achieved.

引用

页码：407 / 409

页数：3

共 12 条

[1]

Bertrand Matthieu, 2015, 2015 IEEE MTT-S International Microwave Symposium (IMS2015), P1, DOI 10.1109/MWSYM.2015.7166800

[2]

Deslandes D, 2001, IEEE MTT-S, P619, DOI 10.1109/MWSYM.2001.966971

[3] Substrate integrated waveguide negative-order resonances and their applications [J].

Dong, Y. ;

Itoh, T. .

IET MICROWAVES ANTENNAS & PROPAGATION, 2010, 4 (08) :1081-1091

[4] Substrate Integrated Waveguide Loaded by Complementary Split-Ring Resonators and Its Applications to Miniaturized Waveguide Filters [J].

Dong, Yuan Dan ;

Yang, Tao ;

Itoh, Tatsuo .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2009, 57 (09) :2211-2223

[5]

Hong J.-S., 2004, Microstrip Filters for RF/Microwave Applications

[6] A Circular-Ring Miniaturized-Element Metasurface With Many Good Features for Frequency Selective Shielding Applications [J].

Huang, Fan-Cheng ;

Chiu, Cheng-Nan ;

Wu, Tzong-Lin ;

Chiou, Yih-Peng .

IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, 2015, 57 (03) :365-374

[7] Compact CPW-Fed Combline Filter in Substrate Integrated Waveguide Technology [J].

Martinez, Jorge D. ;

Sirci, Stefano ;

Taroncher, Mariam ;

Boria, Vicente E. .

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2012, 22 (01) :7-9

[8]

Moscato S., 2016, 2016 IEEE International Workshop on Electromagnetics (iWEM): Applications and Student Innovation Competition, P1, DOI 10.1109/iWEM.2016.7504983

[9]

Saghati Alireza Pourghorban, 2015, 2015 IEEE MTT-S International Microwave Symposium (IMS2015), P1, DOI 10.1109/MWSYM.2015.7166885

[10] Ultra-Miniature SIW Cavity Resonators and Filters [J].

Saghati, Ali Pourghorban ;

Saghati, Alireza Pourghorban ;

Entesari, Kamran .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2015, 63 (12) :4329-4340

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