Abstract
Objectives: This study introduces a new design strategy for an RFID Tag.Methodology/Findings: A low-profile meander line dipole antenna has been fabricated as a proof of concept due to its electrically small size and simple structure. Good agreement is achieved between the results obtained by this method and those calculated by simulations using CST. The antenna is designed to operate at a frequency of 915 MHz, allocated for UHF RFID. In order to ensure that the design has good performance, all of the antenna parameters are optimized. The results of antenna parameters such as radiation pattern,bandwidth, gain and return loss are also considered. This made it possible to achieve a reduction in size of the order of 40%. Applications: Meander line dipole antennas are useful as radio frequency identification (RFID) tag antennas because of their relatively high radiation efficiency and small size. Keywords: UHF; RFID; tag; meander; dipole
Highlights
Radio Frequency Identification (RFID) systems generally consists of tags associated to each object to be tracked, a reader that requests/receives information from the tags, and a database that gathers the information to be processed
The dipole antennas are widely used in radio systems compared to traditional line antennas thanks to their advantages, and they are much more suitable for sensitive applications[9]
The study presented in this article allowed to greatly miniaturize an antenna without significantly impacting its directivity and gain, which are essential for passive RFID applications
Summary
Radio Frequency Identification (RFID) systems generally consists of tags associated to each object to be tracked, a reader that requests/receives information from the tags, and a database that gathers the information to be processed.A tag, known as transponder, holds the data that is transmitted to the reader when the tag is interrogated by the reader[1,2]. According to the communication methods between tags and reader, there are three types of RFID tag, passive, active and semi-active. The most popular tags today are passive tags, as these tags require no battery power and can be produced at very low cost. They get their power by harnessing the electromagnetic energy emitted from the reader. Active tags have their own power supply. They do not require energy provided by reader to
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