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A Wideband Patch and SIW Cavity Hybrid Antenna with Filtering Response
Qianwen Liu1,2; Lei Zhu2; Jianpeng Wang1; Wen Wu1
2020-03-18
Source PublicationIEEE Antennas and Wireless Propagation Letters
ISSN1536-1225
Volume19Issue:5Pages:836-840
Abstract

This letter presents a patch and substrate integrated waveguide (SIW) cavity hybrid antenna with wide bandwidth and high-selectivity filtering response. The proposed antenna is a compact single-layer structure with a height of 0.037 free-space wavelength and composed of one circular patch resonator, one square SIW cavity, and nine metallic pins. The circular patch is internally embedded in the square SIW cavity with a surrounded ring slot and the feeding probe is located in the SIW cavity. Here, the dominant resonant mode of the circular patch resonator (TM) and first two modes of the SIW cavity (TE and TE) are employed to achieve effective radiation from the ring slot under these three resonances. Among them, TM and TE both have broadside radiation performances and thus can be used to achieve wide bandwidth, while TE is utilized to generate a radiation null in the lower stopband. Meanwhile, as the input signal is delivered into the SIW cavity and then coupled to the patch resonator, the mixed coupling occurs between these two distinct resonators and it can introduce another radiation null in the upper stopband. Besides, nine metallic pins can further enhance the frequency selectivity in the lower stopband. For demonstration, a prototype antenna is designed, fabricated, and measured. The measured results agree well with the simulated ones and show a wide bandwidth of about 9.14% at the center frequency of 3.5 GHz with a stable boresight realized gain in the range of 6.40 to 7.30 dBi within the operating band. In addition, two radiation nulls appear at 3.26 and 3.74 GHz on both edges of the operating band.

KeywordCircular Patch Resonator Filtering Antenna Square Substrate Integrated Waveguide (Siw) Wideband Antenna
DOI10.1109/LAWP.2020.2981650
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaEngineering ; Telecommunications
WOS SubjectEngineering, Electrical & Electronic ; Telecommunications
WOS IDWOS:000535611900024
PublisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
Scopus ID2-s2.0-85084930148
Fulltext Access
Citation statistics
Cited Times [WOS]:26   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionDEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Corresponding AuthorLei Zhu
Affiliation1.Ministerial Key Laboratory of JGMT,Nanjing University of Science and Technology,Nanjing,China
2.Department of Electrical and Computer Engineering,Faculty of Science and Technology,University of Macau,Macao
First Author AffilicationFaculty of Science and Technology
Corresponding Author AffilicationFaculty of Science and Technology
Recommended Citation
GB/T 7714
Qianwen Liu,Lei Zhu,Jianpeng Wang,et al. A Wideband Patch and SIW Cavity Hybrid Antenna with Filtering Response[J]. IEEE Antennas and Wireless Propagation Letters,2020,19(5):836-840.
APA Qianwen Liu,Lei Zhu,Jianpeng Wang,&Wen Wu.(2020).A Wideband Patch and SIW Cavity Hybrid Antenna with Filtering Response.IEEE Antennas and Wireless Propagation Letters,19(5),836-840.
MLA Qianwen Liu,et al."A Wideband Patch and SIW Cavity Hybrid Antenna with Filtering Response".IEEE Antennas and Wireless Propagation Letters 19.5(2020):836-840.
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