Erman, Fuad and Koziel, Slawomir and Lim, Eng-Hock and Leifsson, Leifur and Hanafi, Effariza and Murugesh, Muthukannan (2024) A Low-Profile Metal-Backed Dipole Loaded With Closely Coupled Arc-Shaped Open Stubs for On-Metal Tag Design With Wide Frequency Tuning Capability. IEEE Transactions on Antennas and Propagation, 72 (4). pp. 3772-3777. ISSN 0018-926X, DOI https://doi.org/10.1109/TAP.2024.3368214.
Full text not available from this repository.Abstract
This research has presented a single-layer metal-backed dipole antenna, which consists of a feedline loaded with two pairs of closely coupled arc-shaped open stubs, for designing a metal-mountable tag that features tuning capability over a wide range of frequencies. Here, the stubs can generate sufficient inductive reactance to bring down the tag's resonant frequency, making it tunable in both the regulated ultrahigh-frequency (UHF) radio frequency identification (RFID) passbands (North American (NA) and Lower European (LEu) standards). Adjusting the stubs' length can be utilized as a simple and effective tuning mechanism, enabling broadband frequency adjustment between the two major spectra straightforwardly while maintaining a maximum power transmission coefficient ( tau=1 ). In addition, the proposed antenna structure is easy to construct. The tuning mechanism has enabled the antenna to match well with any commercial RFID chips, and it does not require the use of any external lumped components or shorting elements (vias or stubs). The proposed tag can be easily fabricated using an inexpensive flexible polytetrafluoroethylene (PTFE) substrate, which is broadly adopted by the RFID industry. Stable read performance is achievable, providing freedom of frequency tuning without the need to modify the radiator structure. The volume of the tag is pi x(28)(2)x1.5 mm(3), which is reasonably small. It has a measured detection distance of 9.75 m (4 W EIRP) on the metal surface in the NA RFID passband, while it is 8.41 m (3.24 W EIRP) in the LEu passband.
| Item Type: | Article |
|---|---|
| Funders: | Icelandic Centre for Research (Rannsknamieth;steth; slands-RANNIS) |
| Uncontrolled Keywords: | Antenna; metal-mountable; operating frequency tuning; ultrahigh-frequency (UHF) tag antenna |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Faculty of Engineering > Department of Electrical Engineering |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 14 Oct 2024 08:06 |
| Last Modified: | 14 Oct 2024 08:06 |
| URI: | http://eprints.um.edu.my/id/eprint/45355 |
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