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Compact Square Substrate Integrated Waveguide Filtering Power Divider with Wideband Isolation
Bao-Guang Liu1; Yun-Peng Lyu2; Lei Zhu3; Chong-Hu Cheng1
2020-12-14
Source PublicationIEEE Microwave and Wireless Components Letters
ISSN1531-1309
Volume31Issue:2Pages:109-112
Abstract

In this letter, a new compact filtering power divider (FPD) on the square substrate integrated waveguide (SIW) with wideband isolation is proposed. As the isolation network is embedded in a square SIW cavity, good in-band isolation, compact structure, and low insertion loss can be simultaneously attained. The proposed FPD consists of the coplanar waveguide feeding line of Port 1, the capacitor, a resistor, and the square SIW cavity. TE101, TE201, and slot-line modes can realize third-order filtering response. Center frequency (f0) and bandwidth of the filtering response can be independently adjusted. In order to achieve out-of-band isolation, Port 2/3 is placed in the specific position to suppress the high-order modes according to the electric-field distributions of these modes. Finally, a prototype with in-band return loss of 20 dB across 5.59-6.4 GHz is designed at 5.99 GHz. The bandwidths of isolation higher than 21 dB and upper stopband attenuation higher than 20 dB are extended to 2.79f0 and 2.83f0, respectively.

KeywordFiltering Power Divider (Fpd) Square Substrate Integrated Waveguide (Siw) Cavity Wideband Isolation Wide Stopband
DOI10.1109/LMWC.2020.3042332
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000617374200004
PublisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
Scopus ID2-s2.0-85098785158
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Citation statistics
Cited Times [WOS]:7   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionDEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Corresponding AuthorYun-Peng Lyu
Affiliation1.College of Electronic and Optical Engineering,Nanjing University of Posts and Telecommunications,Nanjing,210046,China
2.College of Telecommunications and Information Engineering,Nanjing University of Posts and Telecommunications,Nanjing,210046,China
3.Department of Electrical and Computer Engineering,Faculty of Science and Technology,University of Macau,999078,Macao
Recommended Citation
GB/T 7714
Bao-Guang Liu,Yun-Peng Lyu,Lei Zhu,et al. Compact Square Substrate Integrated Waveguide Filtering Power Divider with Wideband Isolation[J]. IEEE Microwave and Wireless Components Letters,2020,31(2):109-112.
APA Bao-Guang Liu,Yun-Peng Lyu,Lei Zhu,&Chong-Hu Cheng.(2020).Compact Square Substrate Integrated Waveguide Filtering Power Divider with Wideband Isolation.IEEE Microwave and Wireless Components Letters,31(2),109-112.
MLA Bao-Guang Liu,et al."Compact Square Substrate Integrated Waveguide Filtering Power Divider with Wideband Isolation".IEEE Microwave and Wireless Components Letters 31.2(2020):109-112.
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