Design of Compact Metal-Mountable Uhf RFID Tag Antenna
A new type of UHF RFID tag antenna, which consists of four elementary shorted patches, a feeding loop, and a ground plane, is proposed for designing a compact metal-mountable UHF RFID tag antenna. The feeding loop in Layer 2 is incorporated for exciting the shorted patches in Layer 1 and Layer 3 sim...
| Main Author: | |
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| Format: | Final Year Project / Dissertation / Thesis |
| Published: |
2021
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| Online Access: | http://eprints.utar.edu.my/4117/ http://eprints.utar.edu.my/4117/1/EC_1701528_FYP_report_%2D_JIUN_IAN_TAN.pdf |
| _version_ | 1848886081254064128 |
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| author | Tan, Jiun Ian |
| author_facet | Tan, Jiun Ian |
| author_sort | Tan, Jiun Ian |
| building | UTAR Institutional Repository |
| collection | Online Access |
| description | A new type of UHF RFID tag antenna, which consists of four elementary shorted patches, a feeding loop, and a ground plane, is proposed for designing a compact metal-mountable UHF RFID tag antenna. The feeding loop in Layer 2 is incorporated for exciting the shorted patches in Layer 1 and Layer 3 simultaneously through inductive coupling. The patches in Layer 1 and Layer 3 are tactfully combined with the narrow stubs before shorted to the ground plane through a shorting via. The narrow stubs are to provide additional inductance for this antenna to conjugate match with the chip impedance. As a result, a high power transmission coefficient of 93.5% is achieved. Apart from improving the matching level, the stubs are also very useful for tuning the resonant frequency to the desired UHF band. The tag antenna has a miniature size of 30 mm × 30 mm × 3.18 mm (0.0914 λ × 0.0914 λ × 0.0096 λ). Despite being electrically small and low in profile, the proposed antenna can produce a stable omnidirectional radiation pattern when being mounted to a metal plate of 200 mm × 200 mm × 10 mm during the measurement process with the detection range up to 6.25 m. The tag has a stable resonant frequency of 914 MHz and it is not affected much by changes in the backing metal. |
| first_indexed | 2025-11-15T19:32:49Z |
| format | Final Year Project / Dissertation / Thesis |
| id | utar-4117 |
| institution | Universiti Tunku Abdul Rahman |
| institution_category | Local University |
| last_indexed | 2025-11-15T19:32:49Z |
| publishDate | 2021 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | utar-41172021-06-11T14:18:05Z Design of Compact Metal-Mountable Uhf RFID Tag Antenna Tan, Jiun Ian TK Electrical engineering. Electronics Nuclear engineering A new type of UHF RFID tag antenna, which consists of four elementary shorted patches, a feeding loop, and a ground plane, is proposed for designing a compact metal-mountable UHF RFID tag antenna. The feeding loop in Layer 2 is incorporated for exciting the shorted patches in Layer 1 and Layer 3 simultaneously through inductive coupling. The patches in Layer 1 and Layer 3 are tactfully combined with the narrow stubs before shorted to the ground plane through a shorting via. The narrow stubs are to provide additional inductance for this antenna to conjugate match with the chip impedance. As a result, a high power transmission coefficient of 93.5% is achieved. Apart from improving the matching level, the stubs are also very useful for tuning the resonant frequency to the desired UHF band. The tag antenna has a miniature size of 30 mm × 30 mm × 3.18 mm (0.0914 λ × 0.0914 λ × 0.0096 λ). Despite being electrically small and low in profile, the proposed antenna can produce a stable omnidirectional radiation pattern when being mounted to a metal plate of 200 mm × 200 mm × 10 mm during the measurement process with the detection range up to 6.25 m. The tag has a stable resonant frequency of 914 MHz and it is not affected much by changes in the backing metal. 2021 Final Year Project / Dissertation / Thesis NonPeerReviewed application/pdf http://eprints.utar.edu.my/4117/1/EC_1701528_FYP_report_%2D_JIUN_IAN_TAN.pdf Tan, Jiun Ian (2021) Design of Compact Metal-Mountable Uhf RFID Tag Antenna. Final Year Project, UTAR. http://eprints.utar.edu.my/4117/ |
| spellingShingle | TK Electrical engineering. Electronics Nuclear engineering Tan, Jiun Ian Design of Compact Metal-Mountable Uhf RFID Tag Antenna |
| title | Design of Compact Metal-Mountable Uhf RFID Tag Antenna |
| title_full | Design of Compact Metal-Mountable Uhf RFID Tag Antenna |
| title_fullStr | Design of Compact Metal-Mountable Uhf RFID Tag Antenna |
| title_full_unstemmed | Design of Compact Metal-Mountable Uhf RFID Tag Antenna |
| title_short | Design of Compact Metal-Mountable Uhf RFID Tag Antenna |
| title_sort | design of compact metal-mountable uhf rfid tag antenna |
| topic | TK Electrical engineering. Electronics Nuclear engineering |
| url | http://eprints.utar.edu.my/4117/ http://eprints.utar.edu.my/4117/1/EC_1701528_FYP_report_%2D_JIUN_IAN_TAN.pdf |