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| Content Provider | IET Digital Library |
|---|---|
| Author | Shen, Laiwei Zhuang, Wei Tang, Wanchun Ma, Jian |
| Abstract | In this study, a new antenna is proposed to achieve uniform perpendicular magnetic field distribution for near-field ultra-high frequency radio-frequency identification. The antenna is based on ‘interdigital-oppositely directed currents (ODCs)’ that is formed by introducing another current between the two oppositely directed currents of ODCs. By adjusting the feeding phase of the newly introduced current, the uniformity of perpendicular magnetic field distribution can be improved. The design procedure of the antenna is presented and the uniform perpendicular magnetic field distribution of the antenna is achieved and verified by experiments. When the transmitting power of the proposed antenna is 1 W, the interrogation area for 100% tag detection is 49 × 16 cm2 with an observing height of 5 cm for Impinj J41 near-field tags. |
| Starting Page | 215 |
| Ending Page | 222 |
| Page Count | 8 |
| ISSN | 17518725 |
| Volume Number | 10 |
| e-ISSN | 17518733 |
| Issue Number | Issue 2, Jan (2016) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-map/10/2 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-map.2015.0368 |
| Journal | IET Microwaves, Antennas & Propagation |
| Publisher Date | 2016-01-29 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Antenna Accessory Antenna Feeds Feeding Phase Interdigital-oppositely Directed Current Interrogation Area Magnetic Field Near-field Ultra-high Frequency Radio-frequency Identification ODC Power 1 W Radiofrequency Identification RFID System Single Antenna Tag Detection UHF Antenna Uniform Perpendicular Magnetic Field Distribution |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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