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A Microstrip Yagi Antenna with an Enlarged Beam Tilt Angle via a Slot-loaded Patch Reflector and Pin-loaded Patch Directors
Jiaqi Shi1; Lei Zhu2; Nengwu Liu3; Wen Wu1
2019-02-22
Source PublicationIEEE Antennas and Wireless Propagation Letters
ISSN1536-1225
Abstract

In this letter, a microstrip Yagi antenna with a resonating patch driver, one slot-loaded patch reflector and two pin-loaded patch directors is proposed. Different from all the reported counterpart antennas, the lengths and widths of all the patch elements involved herein are set to be the same, and a parasitic patch reflector and patch directors are realized by loading the slot and shorting pins on the patches, respectively. For a square patch, its resonance frequency can be reduced by etching out a slot, acquiring a reflective function. However, its resonance frequency can be increased by adding a pair of shorting pins underneath the patch, thus acquiring a directive function. By placing these two types of parasitic patches in the two sides of the driving patch radiator, an alternative microstrip Yagi antenna can be constructed to achieve a quasi-end-fire radiation pattern with an enlarged beam tilt angle. A prototype operating at 5 GHz is finally fabricated and tested. The measured results achieve an impendence bandwidth of 8%. In addition, the maximum deviation angle reaches approximately 56° from the broad side, and its 3 dB beam-width in the XOY plane exceeds 62°.

KeywordMicrostrip Yagi Antenna Beam Tilt Angle Quasi End-fire Pin-loaded Patch Director Slot-loaded Patch Reflector
DOIhttps://doi.org/10.1109/LAWP.2019.2901033
Indexed BySCI
Language英语
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Document TypeJournal article
CollectionFaculty of Science and Technology
DEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Corresponding AuthorLei Zhu
Affiliation1.Ministerial Key Laboratory of JGMT, Nanjing University of Science and Technology, Nanjing 210094, China
2.Department of Electrical and Computer Engineering, Faculty of Science and Technology, University of Macau, Macau SAR, China
3.National Key Laboratory of Antennas and Microwave Technology, Xidian University, Xi’an 710071, China
Corresponding Author AffilicationFaculty of Science and Technology
Recommended Citation
GB/T 7714
Jiaqi Shi,Lei Zhu,Nengwu Liu,et al. A Microstrip Yagi Antenna with an Enlarged Beam Tilt Angle via a Slot-loaded Patch Reflector and Pin-loaded Patch Directors[J]. IEEE Antennas and Wireless Propagation Letters,2019.
APA Jiaqi Shi,Lei Zhu,Nengwu Liu,&Wen Wu.(2019).A Microstrip Yagi Antenna with an Enlarged Beam Tilt Angle via a Slot-loaded Patch Reflector and Pin-loaded Patch Directors.IEEE Antennas and Wireless Propagation Letters.
MLA Jiaqi Shi,et al."A Microstrip Yagi Antenna with an Enlarged Beam Tilt Angle via a Slot-loaded Patch Reflector and Pin-loaded Patch Directors".IEEE Antennas and Wireless Propagation Letters (2019).
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