The Idea of Enhancing Directional Energy Radiation by a Phased Antenna Array in UHF RFID System

Jankowski-Mihułowicz, Piotr; Kawalec, Damian; Węglarski, Mariusz

doi:10.1515/eletel-2016-0015

Cited by 5 publications

(5 citation statements)

References 30 publications

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“…The example calculations are performed for 100-transponders and a set of tests of a UHF band phased array antenna [20], which include: two antennas (spaced apart by half a wavelength related to the frequency f = 866 MHz) supplied by the RWD. Transponders and a phased array antenna have an axisymmetric, directional radiation pattern.…”

Section: Resultsmentioning

confidence: 99%

Using the phased array antenna to increase geometric size of the interrogation zone in a UHF RFID system

Jankowski-Mihułowicz

Kawalec

Węglarski

et al. 2017

Archives of Electrical Engineering

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An attempt to increase the geometric size of the interrogation zone in UHF RFID systems with a phased array antenna is presented in this paper. The interrogation zone should be as large as possible. However, energy can be transferred to transponders only to a limited distance. The greatest flexibility in developing RFID applications and shaping the interrogation zone can be achieved using a phased array antenna. The perceived issues have been effectively dealt with and the solution has been proposed on the basis of an elaborated model. Conducted studies have been used to develop a software tool in the Mathcad environment. The research results are analyzed in detail for different system configurations and can be implemented in practical projects to be developed in cooperation with the industry.

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Section: Resultsmentioning

confidence: 99%

Using the phased array antenna to increase geometric size of the interrogation zone in a UHF RFID system

Jankowski-Mihułowicz

Kawalec

Węglarski

et al. 2017

Archives of Electrical Engineering

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“…This parameter also should be appropriate to requirements established for an application of automated identification. With regard to problems of dynamic anti-collision systems, selected issues pertinent to increasing geometric size of the IZ are presented in the publications [83,84].…”

Section: Methods To Increase Geometric Size Of the Interrogation Zonementioning

confidence: 99%

“…In this context, new opportunities may be sought for the use of the array of phased antennas [86]. Bearing in mind the European (ETSIEN302208) and American (FCCPart15.247) limitations of available energy, the idea and practical solution of the phased antenna array dedicated to UHF read/write devices are presented in the chapter [84]. On the basis of tests carried out, the authors point out the possibility of using developed devices for the synthesis of a determined IZ in anti-collision RFID system.…”

Section: Radio Frequency Identificationmentioning

confidence: 99%

Definition, Characteristics and Determining Parameters of Antennas in Terms of Synthesizing the Interrogation Zone in RFID Systems

Jankowski-Mihułowicz¹,

Węglarski²

2017

Radio Frequency Identification

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The radio frequency identification (RFID) systems are gaining in popularity in automated processes of object identification in various socioeconomic areas. However, despite the existing belief, there is no universal RFID system on the commercial market that could be used in all user applications. All components of a developed solution should be carefully selected or designed according to the specification of objects being recognized and characteristics of their environment. In order to determine parameters of propagation or inductively coupled system, especially when it is dedicated to uncommon applications, a multiaspect analysis has to be taken into consideration. Due to complexity, the problem is reduced to analytical or experimental determination of RFID system operation range and a "trial and error" method is mostly used in the industry practice. In order to cope with the barriers existing in the RFID technology, the authors give the review of latest achievements in this field. They focus on the definition, comprehensive characteristics and determination of the antenna parameters. They also pay attention to the 3D interrogation zone (IZ) that is the main parameter in which multitude technical aspects of the RFID systems are gathered simultaneously, as regards the theoretical synthesis as well as market needs.

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“…The both parameters were analyzed in [120]. The IZ parameter can be changed dynamically, e.g., by adjusting the power supplied to the RWD antenna or in more advanced solutions, by implementing antenna system with controlling phase of signals [121,122]. In turn, the network of identification points can have different density and shape as well as it can be regular or chaotic.…”

Section: Rfid Technology Implementation—localization and Navigationmentioning

confidence: 99%

Factors Affecting the Synthesis of Autonomous Sensors with RFID Interface

Węglarski

Jankowski-Mihułowicz

2019

Sensors

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A general view on the problem of designing atypical battery-free, autonomous semi-passive RFID transponders-sensors (autonomous sensors with RFID interfaces) is presented in this review. Although RFID devices can be created in any of the electronic technologies, the design stage must be repeated each time when the manufacturing processes are changed, and their specific conditions have to be taken into consideration when modeling new solutions. Aspects related to the factors affecting the synthesis of semi-passive RFID transponder components on the basis of which the idea of the autonomous RFID sensor was developed are reflected in the paper. Besides their general characteristics, the operation conditions of modern RFID systems and achievements in autonomous RFID sensor technology are revealed in subsequent sections—they include such issues as technological aspects of the synthesis process, designing antennas for RFID transponders, determining RFID chip and antenna parameters, creating the interrogation zone IZ, etc. It should be pointed that the universal construction of an autonomous RFID sensor, which could be use in any application of the automatic object identification system, cannot be developed according to the current state of the art. Moreover, a trial and error method is the most commonly used in the today’s process of designing new solutions, and the basic parameters are estimated on the basis of the tests and the research team experience. Therefore, it is necessary to look for new inventions and methods in order to improve implementations of RFID systems.

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The Idea of Enhancing Directional Energy Radiation by a Phased Antenna Array in UHF RFID System

Cited by 5 publications

References 30 publications

Using the phased array antenna to increase geometric size of the interrogation zone in a UHF RFID system

Using the phased array antenna to increase geometric size of the interrogation zone in a UHF RFID system

Definition, Characteristics and Determining Parameters of Antennas in Terms of Synthesizing the Interrogation Zone in RFID Systems

Factors Affecting the Synthesis of Autonomous Sensors with RFID Interface

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