Near‐field radio frequency identification leaky‐wave antenna based on artificial transmission line

2022 ◽  
Author(s):  
Yanru Fang ◽  
Yexin Wang ◽  
Changrong Liu ◽  
Xueguan Liu
Keyword(s):  
Radio Frequency ◽  
Transmission Line ◽  
Radio Frequency Identification ◽  
Near Field ◽  
Leaky Wave ◽  
Leaky Wave Antenna ◽  
Wave Antenna ◽  
Frequency Identification

scholarly journals Design and Development Of Lecturer Attendance System Using Radio Frequency Identification (RFID)

2021 ◽  
Vol 10 (1) ◽  
pp. 15-27
Author(s):  
I Gede Sujana Eka Putra ◽  
Anthony Lee ◽  
I Made Tirta Mahayana ◽  
I Gede Agung Wicaksono Dharmayasa
Keyword(s):  
Radio Frequency ◽  
Radio Frequency Identification ◽  
Web Application ◽  
Academic Staff ◽  
Near Field ◽  
Literature Study ◽  
Master Data ◽  
Presence Data ◽  
Frequency Identification ◽  
The University

Lecturer attendance record is required by the university to know the presence of lecturers in teaching in class. In general condition, lecturer attendance is recorded on the attendance sheet, or input to web application accessed on a class computer. However, there are some problems in its implementation so that at the end, lecturer presence is carried out using a manual form where the academic staff needs to re-enter the lecturer attendance data into the applications. Based on the above, the authors designed and developed a lecturer attendance information system to record lecturers' attendance using radio frequency identification technology by implementing a near field communication card (NFC Card). The device used to record and read presence data during lectures, by tapping an Mi-fare NFC card to an NFC reader / writer device. The flow of this research method begins with a literature study of NFC card, observe the flow of lecture attendance process and data recorded into lecturer attendance sheet, analyzing the database design, the system design which has compatible with NFC reader and writer devices, designed system interface and continue to develop system. The result is system consists of master data, system attendance, verification and reporting module. The results show that NFC card implementation is more practical for lecturers in conducting lecture attendance and NFC card could be tapped out into an NFC device at a maximum distance up to 7 cm with the reading angle relative to NFC reader/writer with range 00 until 300 can read NFC Card.

Development of compact inductive coupled meander line RFID tag for near-field applications

2016 ◽  
Vol 9 (4) ◽  
pp. 757-764 ◽  
Author(s):  
Abhishek Choudhary ◽  
Krishan Gopal ◽  
Deepak Sood ◽  
Chandra Charu Tripathi
Keyword(s):  
Radio Frequency ◽  
Radiation Pattern ◽  
Radio Frequency Identification ◽  
High Frequency ◽  
Near Field ◽  
High Frequency Band ◽  
Rfid Tag ◽  
Frequency Identification ◽  
Meander Line ◽  
System Operating

The development of compact radio frequency identification (RFID) tag is the key requirement for wireless tracking of precious small size goods/packages in transport. A design of compact meander line tag antenna having inductive coupling feed is presented for RFID system operating at ultra high frequency band of865–867 MHz. The size of the proposed tag antenna is43 mm × 10 mm, and is designed using Higgs 4 IC chip (made Alien Technology, USA) having impedance of20.55− j191.45 Ωat centre frequency866 MHz.The antenna characteristics such as impedance, radiation pattern, bandwidth, and effect of ground on gain and tag size are analyzed and found to closely match with the simulated values. The observed value of reading range varies from87.5 to 35 cmsdepending on mounting on non-metal and metal packages, respectively.

A periodically perturbed coplanar wave guide transmission line leaky wave antenna

2007 ◽  
Author(s):  
Dale Stevens ◽  
Guru Subramanyam ◽  
Ken Koss ◽  
Matt Casto ◽  
Robert Neidhard ◽  
...  
Keyword(s):  
Transmission Line ◽  
Wave Guide ◽  
Leaky Wave ◽  
Leaky Wave Antenna ◽  
Wave Antenna
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