A Reading Range- and Frequency-Reconfigurable Antenna for Near-Field and Far-Field UHF RFID Applications
In radio frequency identification (RFID), differences in spectrum policies and tag misreading in different countries are the two main issues that limit its application. To solve these problems, this article proposes a composite right/left-handed transmission line (CRLH-TL)-based reconfigurable anten...
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MDPI AG
2025-01-01
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| Series: | Sensors |
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| author | Chenyang Song Zhipeng Wu |
| author_facet | Chenyang Song Zhipeng Wu |
| author_sort | Chenyang Song |
| collection | DOAJ |
| description | In radio frequency identification (RFID), differences in spectrum policies and tag misreading in different countries are the two main issues that limit its application. To solve these problems, this article proposes a composite right/left-handed transmission line (CRLH-TL)-based reconfigurable antenna for ultra-high frequency near-field and far-field RFID reader applications. The CRLH-TL is achieved using a periodically capacitive gap-loaded parallel plate line. By deploying the CRLH-TL operating at zeroth-order resonance, a loop antenna with in-phase radiating current is obtained, which contributes to a strong and uniform H-field and a horizontally polarized omnidirectional radiation pattern. By introducing additional tunable components, frequency and reading range reconfigurabilities are enabled. The frequency tuning range is from 833 MHz to 979 MHz, which covers the worldwide UHF RFID band. Moreover, each operation mode has a narrow frequency band, which means it can operate without violating different countries’ radio frequency policy and reduce the design difficulty of designing multiple versions of a reader. Both the near-field interrogation zone and maximum far-field reading distance of the antenna are adjustable. The near-field interrogation zone is 400 mm × 400 mm × 50 mm and can be further confined. The tuning range for far-field reading distance is from 2.71 m to 0.35 m. |
| format | Article |
| id | doaj-art-d35561129dc14d21af4062f13474952e |
| institution | Kabale University |
| issn | 1424-8220 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
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| series | Sensors |
| spelling | doaj-art-d35561129dc14d21af4062f13474952e2025-01-24T13:48:49ZengMDPI AGSensors1424-82202025-01-0125240810.3390/s25020408A Reading Range- and Frequency-Reconfigurable Antenna for Near-Field and Far-Field UHF RFID ApplicationsChenyang Song0Zhipeng Wu1Department of Electrical and Electronic Engineering, The University of Manchester, Manchester M13 9PL, UKDepartment of Electrical and Electronic Engineering, The University of Manchester, Manchester M13 9PL, UKIn radio frequency identification (RFID), differences in spectrum policies and tag misreading in different countries are the two main issues that limit its application. To solve these problems, this article proposes a composite right/left-handed transmission line (CRLH-TL)-based reconfigurable antenna for ultra-high frequency near-field and far-field RFID reader applications. The CRLH-TL is achieved using a periodically capacitive gap-loaded parallel plate line. By deploying the CRLH-TL operating at zeroth-order resonance, a loop antenna with in-phase radiating current is obtained, which contributes to a strong and uniform H-field and a horizontally polarized omnidirectional radiation pattern. By introducing additional tunable components, frequency and reading range reconfigurabilities are enabled. The frequency tuning range is from 833 MHz to 979 MHz, which covers the worldwide UHF RFID band. Moreover, each operation mode has a narrow frequency band, which means it can operate without violating different countries’ radio frequency policy and reduce the design difficulty of designing multiple versions of a reader. Both the near-field interrogation zone and maximum far-field reading distance of the antenna are adjustable. The near-field interrogation zone is 400 mm × 400 mm × 50 mm and can be further confined. The tuning range for far-field reading distance is from 2.71 m to 0.35 m.https://www.mdpi.com/1424-8220/25/2/408reconfigurable antennaultrahigh frequency (UHF)radio frequency identification (RFID)near-field antennacomposite right/left-handed material |
| spellingShingle | Chenyang Song Zhipeng Wu A Reading Range- and Frequency-Reconfigurable Antenna for Near-Field and Far-Field UHF RFID Applications Sensors reconfigurable antenna ultrahigh frequency (UHF) radio frequency identification (RFID) near-field antenna composite right/left-handed material |
| title | A Reading Range- and Frequency-Reconfigurable Antenna for Near-Field and Far-Field UHF RFID Applications |
| title_full | A Reading Range- and Frequency-Reconfigurable Antenna for Near-Field and Far-Field UHF RFID Applications |
| title_fullStr | A Reading Range- and Frequency-Reconfigurable Antenna for Near-Field and Far-Field UHF RFID Applications |
| title_full_unstemmed | A Reading Range- and Frequency-Reconfigurable Antenna for Near-Field and Far-Field UHF RFID Applications |
| title_short | A Reading Range- and Frequency-Reconfigurable Antenna for Near-Field and Far-Field UHF RFID Applications |
| title_sort | reading range and frequency reconfigurable antenna for near field and far field uhf rfid applications |
| topic | reconfigurable antenna ultrahigh frequency (UHF) radio frequency identification (RFID) near-field antenna composite right/left-handed material |
| url | https://www.mdpi.com/1424-8220/25/2/408 |
| work_keys_str_mv | AT chenyangsong areadingrangeandfrequencyreconfigurableantennafornearfieldandfarfielduhfrfidapplications AT zhipengwu areadingrangeandfrequencyreconfigurableantennafornearfieldandfarfielduhfrfidapplications AT chenyangsong readingrangeandfrequencyreconfigurableantennafornearfieldandfarfielduhfrfidapplications AT zhipengwu readingrangeandfrequencyreconfigurableantennafornearfieldandfarfielduhfrfidapplications |