Transmission line delay-based radio frequency identification (RFID) tag

2007 ◽  
Vol 49 (8) ◽  
pp. 1900-1904 ◽  
Author(s):  
Jeevan Vemagiri ◽  
Aravind Chamarti ◽  
Mangilal Agarwal ◽  
Kody Varahramyan
Keyword(s):  
Radio Frequency ◽  
Transmission Line ◽  
Radio Frequency Identification ◽  
Rfid Tag ◽  
Frequency Identification

scholarly journals Small Size and Low Cost UHF RFID Tag Antenna Mountable on Metallic Objects

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Sergio López-Soriano ◽  
Josep Parrón
Keyword(s):  
Radio Frequency ◽  
Transmission Line ◽  
Radio Frequency Identification ◽  
Low Cost ◽  
Experimental Results ◽  
Uhf Rfid ◽  
Rfid Tag ◽  
Frequency Identification ◽  
European Regulations ◽  
Metallic Object

Reducing tag size while maintaining good performance is one of the major challenges in radio-frequency identification applications (RFID), in particular when labeling metallic objects. In this contribution, a small size and low cost tag antenna for identifying metal objects in the European UHF band (865–868 MHz) is presented. The antenna consists of a transmission line mounted on an inexpensive thin dielectric which is proximity-coupled to a short-ended patch mounted on FR4 substrate. The overall dimensions of the tag are 33.5 × 30 × 3.1 mm. Experimental results show that, for an EIRP of 3.2 W (European regulations), such a small and cheap tag attains read ranges of about 5 m when attached to a metallic object.

scholarly journals Rancang Bangun Sistem Pengaman Sepeda Motor Menggunakan Radio Frequency Identification (RFID) dan Notifikasi Melalui Handphone

2019 ◽  
Vol 8 (1) ◽  
pp. 13-19
Author(s):  
Meli Mildawati ◽  
Wildian Wildian
Keyword(s):  
Radio Frequency ◽  
Radio Frequency Identification ◽  
Reed Switch ◽  
Rfid Tag ◽  
Rfid Reader ◽  
Frequency Identification ◽  
Arduino Uno

Sistem pengaman sepeda motor menggunakan radio frequency identification (RFID) dan notifikasi melalui handphone yang dikontrol dengan modul Arduino Uno telah dirancang bangun. RFID terdiri dari sebuah RFID tag dan RFID reader. RFID tag yang memiliki kode yang berbeda-beda, digunakan sebagai kunci untuk menghidupkan sepeda motor setelah kunci kontak digunakan. RFID reader dapat membaca tag pada jarak maksimal 1,26 cm. Sepeda motor yang dihidupkan tanpa menggunakan RFID tag atau RFID tag tidak sesuai menyebabkan aktifnya reed switch pada pelek roda depan. Ketika roda telah berputar sebanyak empat kali, maka alarm aktif dan GSM SIM 800L mengirimkan notifikasi berupa SMS sebanyak satu kali dan misscall sebanyak tiga kali ke nomor handphone pemilik sepeda motor. Waktu delay rata-rata SMS dan miscall berturut-turut adalah 5,42 s, 8,62 s, 61,14 s dan 113,16 s. Kata kunci: sistem pengaman sepeda motor, RFID, Arduino Uno , reed switch, GSM SIM 800L

Basic Characteristics of RFID Antenna for Urination Detection

2012 ◽  
Vol 85 ◽  
pp. 59-64
Author(s):  
Hiromasa Nakajima ◽  
Masaharu Takahashi ◽  
Kazuyuki Saito ◽  
Koichi Ito
Keyword(s):  
Radio Frequency ◽  
Radio Frequency Identification ◽  
Mental Strain ◽  
Rfid Tag ◽  
Sensing System ◽  
Rfid System ◽  
Frequency Identification ◽  
Basic Characteristics ◽  
Antenna Characteristics

Radio frequency identification (RFID) system has been expected to be expanded in new fields. This paper shows a sensing system for urination by embedding an RFID tag into a paper diaper. The urination could be checked by change of the antenna characteristics. It could be possible to reduce physical and mental strain of both patients and their care personnel. In order to detect the urination, the RFID antenna was designed and the characteristics of the antenna were calculated. In addition, the antenna characteristics were measured with a phantom. As the result, urination considerably changes the antenna characteristics and that the system can be used to detect the urination.

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.

IMPLEMENTATION OF RADIO FREQUENCY IDENTIFICATION DEVICES IN 0.3 TESLA MAGNETIC RESONANCE IMAGING AND COMPUTED TOMOGRAPHY

2014 ◽  
Vol 26 (06) ◽  
pp. 1450069 ◽  
Author(s):  
M. Periyasamy ◽  
R. Dhanasekaran
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Radio Frequency ◽  
Radio Frequency Identification ◽  
Ct Scanning ◽  
Reading Performance ◽  
Resonance Imaging ◽  
Rfid Tag ◽  
Frequency Identification

The aim of this work was to assess two issues concerning magnetic resonance imaging (MRI) including device functionality and image artifacts for the presence of ultra high frequency (UHF) radio frequency identification (RFID) devices in connection with 0.3 Tesla at 12.7 MHz MRI and computed tomography (CT) scanning. A total of 15 samples of RFID tags with two dissimilar sizes (wristband and ID card types) were tested. The tags were exposed to a several numbers of MR-imaging conditions during MRI examination and X-rays of CT scan. During the test, the tags were oriented in three different directions (axial, coronal and sagittal) pertaining to MRI system in order to encompass all possible situations with respect to the patient undergoing MRI and CT scanning, wearing a RFID tag on wrist. In addition to the device functionality test and imaging artifacts, we also analyzed the reading performance of the RFID reader considering significant factors in MRI scan area. We observed that the tags did not experience physical damage with its functionality remained unchanged even after MRI and CT scanning, and there was no modification in previously stored data as well. In addition, no evidence of artifact was observed in the acquired MR and CT images. Therefore, we can conclude that the use of passive UHF RFID tag is safe for a patient undergoing MRI at 0.3 T/12.7 MHz and CT scanning. However, the reading performance of the RFID reader got affected depending on whether the MRI machine was on or off and also by the angle of the reader antenna.

RFID Tag Area Management Base on IOT

2013 ◽  
Vol 756-759 ◽  
pp. 4529-4532 ◽  
Author(s):  
Hao Zeng ◽  
Yan Hui Fu ◽  
Xu Chen
Keyword(s):  
Internet Of Things ◽  
Radio Frequency ◽  
Radio Frequency Identification ◽  
The Internet ◽  
Rfid Tag ◽  
Frequency Identification ◽  
The Right ◽  
The Internet Of Things ◽  
Area Management

Traditional Radio Frequency Identification (RFID) Tag Equipment has some problems like these: it is difficult to realize if the tag is kept out, destroyed, or taken away abnormally. It cant accurately judge where the area the tag had moved to is. Besides, it is difficult to distinguish the right of the tag in the Tag Management. To solve these issues, this paper serves with a method which is based on the Internet of Things (IOT). It mainly includes as the following: the tag is activated in the Controlled Area, the judgment of the tag access the Controlled Area, whether the tag exists in the Controlled Area or not. These methods can reform the problems that the Traditional RFID Tag Equipment has.

scholarly journals APLIKASI ABSENSI PENYIAR RADIO DENGAN MENGGUNAKAN TEKNOLOGI RFID (RADIO FREQUENCY IDENTIFICATION) BERBASIS WEB STUDI KASUS RADIO POLNES FM

2019 ◽  
Vol 10 (2) ◽  
pp. 1
Author(s):  
Fimanisa Arianingrum ◽  
Farindika Metandi
Keyword(s):  
Radio Frequency ◽  
Radio Frequency Identification ◽  
Ip Address ◽  
Rfid Tag ◽  
Rfid Reader ◽  
Frequency Identification ◽  
Arduino Uno

Selama ini sistem manajemen yang ada di Radio Polnes FM masih bersifat manual salah satunya ialah absensi. Kordinator Radio harus melihat berkas absen yang masih dicatat dengan menggunakan tulisan tangan. Sehingga diperlukan suatu aplikasi absensi yang dapat memudahkan penyiar dan kordinator. Oleh sebab itu peneliti membangun sebuah sistem Absensi Penyiar Radio menggunakan Teknologi RFID (Radio Frequency Identification). Alat yang digunakan pada penelitian ini adalah RFID RC-522, Arduino uno, dan Ethernet shield. Sementara, untuk tools yang digunakan adalah Bahasa pemrograman php dan Arduino. Percobaan keberhasilan RFID reader membaca RFID tag, pengambilan data dan tersimpannya data kedalam database melalui sebuah mikrokontroler berupa Ethernet Shield. Kesimpulan dari hasil penelitian ini adalah RFID reader dapat membaca RFID tag dan Ethernet Shield bisa bekerja mengirim kode data RFID kedalam database melaui sebuah IP address yang nantinya kode tersebut ditampilkan kedalam sistem.

scholarly journals Asset Management Security System Using RFID Technology

2018 ◽  
Vol 7 (4.6) ◽  
pp. 391
Author(s):  
Soumyasanta Rakshit ◽  
Dr. S. S. Sridhar
Keyword(s):  
Radio Frequency ◽  
Radio Frequency Identification ◽  
Asset Management ◽  
Building Blocks ◽  
Rfid Technology ◽  
Rfid Tag ◽  
Digital Identification ◽  
Frequency Identification ◽  
Unique Parameter ◽  
Asset Management System

Using radio wave or radio frequency scanners to identify wirelessly any object is not so much complex in reality. The latest version of this technology is known as radio frequency identification or RFID. RFID has three building blocks: small tags built around microchips that carry a digital identification code; The RFID scanners also known as readers, the readers are also known as interrogators and networking hardware and the software to link scanners to the main computer databases that can be in hardware or cloud storage. In this project, we describe the implementation of RFID technology in the platform of asset management system in an organization. Using RFID technology track the all of the assets is the main aim of the project. The RFID interrogators open a serial port and then reads a RFID tag to use it as a unique parameter in the database to access and show the record associated to the RFID chip. Any change is wirelessly synchronized to the main database server.An admin will look after the whole server as an administration. If any new asset is introduced which is not in the main database, when the RFID scanner detects that the admin will get a notification message also in anyway if any asset will tamper by anything or anyone or if someone will try to steal any asset then again, the admin will get a notification message instantly.

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