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    Tytuł:
    The Idea of Enhancing Directional Energy Radiation by a Phased Antenna Array in UHF RFID System
    Autorzy:
    Jankowski-Mihułowicz, P.
    Kawalec, D.
    Węglarski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/227164.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    RFID
    phased antenna array
    interrogation zone
    Opis:
    The interrogation zone IZ is the most important parameter when RFID systems are considered. Its predictability is determined by the construction and parameters of antenna built in a read/write device. The IZ should be of sufficient size and appropriate to requirements established for an application of object automated identification. The method of shaping an antenna radiation pattern provides effective yet unconventional opportunities in this area. The idea and practical solution of the phased antenna array dedicated to UHF read/write devices are presented in the paper. On the basis of tests carried out, the authors pointed out the possibility of using developed devices for the synthesis of a determined IZ in anti-collision RFID system.
    Źródło:
    International Journal of Electronics and Telecommunications; 2016, 62, 2; 115-120
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The impedance measurements problem in antennas for RFID technique
    Autorzy:
    Jankowski-Mihułowicz, P.
    Pitera, G.
    Węglarski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/221609.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    RFID
    antenna
    impedance measurement
    differential probe
    Opis:
    The authors paid particular attention to the problem of antenna impedance measurements in the RFID technique. These measurements have to be realized by using two ports of a vector network analyzer and dedicated passive differential probes. Since the measurement process and estimated parameters depend on the frequency band, operating conditions, type of the system component and antenna designs used, appropriate verification of the impedance parameters on the basis of properly conducted experiments is a crucial stage in the antenna synthesis of transponders and read/write devices. Accordingly, a systematized procedure of impedance measurements is proposed. It can be easily implemented by designers preparing antennas for different kinds of RFID applications. The essence of indirect measurements of the differential impedance parameters is discussed in details. The experimental verification has been made on the basis of a few representative examples.
    Źródło:
    Metrology and Measurement Systems; 2014, 21, 3; 509-520
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A Method for Measuring the Radiation Pattern of UHF RFID Transponders
    Autorzy:
    Jankowski-Mihułowicz, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/221209.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    RFID
    UHF transponder
    antenna
    radiation pattern
    Opis:
    The operating principles of RFID antennas should be considered differently than it is applied in the classical theory of radio communication systems. The procedure of measuring the radiation pattern of antennas that could be applied to RFID transponders operating in the UHF band is seldom discussed correctly in the scientific literature. The problem consists in the variability of the RFID chip impedance that strongly influences measurement results. The authors propose the proper methodology for determining the radiation pattern with respect to an individual transponder as well as an electronically tagged object. The advantage of the solution consists in the possibility of using components of different measuring systems that are available in typical antenna laboratories. The proposed procedure is particularly important in terms of parameter validation - the identification efficiency and costs of an RFID system implementation can be evaluated properly only on the basis of real values of considered parameters.
    Źródło:
    Metrology and Measurement Systems; 2016, 23, 2; 163-172
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Interrogation zone determination in HF RFID systems with multiplexed antennas
    Autorzy:
    Jankowski-Mihułowicz, P.
    Węglarski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/141107.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    anti-collision identification
    interrogation zone
    multiplexed antennas
    RFID
    Opis:
    The operation of an anti-collision RFID system is characterized by the interrogation zone which should be estimated in any direction of 3D space for a group of electronic transponders. The interrogation zone should be as large as possible. However, the many problems in this area are due to the fact that energy can be transferred to transponders only on a limited distance. The greatest flexibility in developing RFID applications and shaping the interrogation zone can be achieved using the system with an antenna multiplexer. Therefore the problem of the interrogation zone determination in HF RFID systems with two orthogonal RWD antennas is presented in the paper. The perceived issues have been effectively dealt with and the solution has been proposed on the basis of the elaborated model. Conducted studies have been used to develop the software tool JankoRFIDmuxHF in the Mathcad environment. The research results are analysed in an example system configuration. The specialized measuring stand has been used for experimental verification of the identification efficiency. The convergence of the measurements and calculations confirms a practical usefulness of the presented concept of interrogation zone determination in anti-collision systems. It also shows the practical utility of the developed model and software tools.
    Źródło:
    Archives of Electrical Engineering; 2015, 64, 3; 459-470
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Using the phased array antenna to increase geometric size of the interrogation zone in a UHF RFID system
    Autorzy:
    Jankowski-Mihułowicz, P.
    Kawalec, D.
    Węglarski, M.
    Lichoń, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/141093.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    phased array antenna
    anti-collision identification
    interrogation zone
    RFID
    Opis:
    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.
    Źródło:
    Archives of Electrical Engineering; 2017, 66, 4; 761-772
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Passive UHF RFID-enabled sensor system for detection of products exposure to elevated temperature
    Autorzy:
    Janeczek, K.
    Jakubowska, M.
    Kozioł, G.
    Jankowski-Mihułowicz, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/220717.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    RFID
    temperature sensor
    printed antenna
    screen printing
    printed electronics
    Opis:
    Temperature change is one of key factors which should be taken into account in logistics during transportation or storage of many types of goods. In this study, a passive UHF RFID-enabled sensor system for elevated temperature (above 58°C) detection has been demonstrated. This system consists of an RFID reader and disposable temperature sensor comprising an UHF antenna, chip and temperature sensitive unit. The UHF antenna was designed and simulated in an IE3D software. The properties of the system were examined depending on the temperature level, type of package which contains the studied objects and the type of antenna substrate.
    Źródło:
    Metrology and Measurement Systems; 2013, 20, 4; 591-600
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wyznaczanie obszaru poprawnej pracy systemów RFID działających w paśmie UHF
    Determination of interrogation zone for RFID systems working in UHF band
    Autorzy:
    Jankowski-Mihułowicz, P.
    Węglarski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/156030.pdf
    Data publikacji:
    2011
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    RFID
    obszar poprawnej pracy
    pasmo UHF
    interrogation zone
    UHF band
    Opis:
    W artykule zaprezentowano problem syntezy obszaru poprawnej pracy dla propagacyjnych systemów RFID, przy założeniu ich prawidłowego funkcjonowania nie tylko w stanach statycznych (obiekty nieruchome), ale także w trudnych warunkach dynamicznych (obiekty zmieniające swoją lokalizację i orientację w przestrzeni). Dodatkowo wskazano przesłanki, które zapewniają wykorzystywanie obszaru poprawnej pracy jako podstawowego parametru aplikacyjnego systemów RFID.
    Nowadays there is often a need to design and implement innovative solutions in Radio Frequency IDentification (RFID). It should be noted that among all factors (Section 1) [4-8] affecting the operation of RFID systems the interrogation zone is the most useful parameter at the design stage [1, 2, 4]. This parameter defines the possibility of using RFID applications for particular automated identification processes. It also comprehensively covers the energy and communication aspects involved with operating of individual components (Fig. 1). At the present state of knowledge the lack of precise specifications (from manufacturers) of electrical and structural properties of offered elements is the main reason for inhibiting the practical implementation of the anticollision identification process. The ability of the interrogation zone synthesis (Section 2) in the RFID system for particular applications consists in the possibility of using complete base of information and taking into account many variables, such as the system parameters, conditions in which it operates, as well as antenna placement and orientation in space (Figs. 2 and 3). The problem of interrogation zone synthesis for the anticollision UHF RFID systems operating under dynamic conditions is presented in the paper (Section 3). The professional test stand (Figs. 4 and 5) for the model verification was constructed.
    Źródło:
    Pomiary Automatyka Kontrola; 2011, R. 57, nr 12, 12; 1469-1472
    0032-4140
    Pojawia się w:
    Pomiary Automatyka Kontrola
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wyznaczanie czułości chipu identyfikatora przeznaczonego do pracy w propagacyjnych systemach RFID pasma UHF
    Determination of chip sensitivity for transponder working in RFID systems of UHF band
    Autorzy:
    Jankowski-Mihułowicz, P.
    Węglarski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/152120.pdf
    Data publikacji:
    2012
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    RFID
    pasmo UHF
    identyfikator
    czułość chipu
    UHF band
    transponder
    chip sensitivity
    Opis:
    W artykule zaprezentowano dwie metody wyznaczania czułości chipu identyfikatora funkcjonującego w propagacyjnych systemach RFID pasma UHF. Czułość jest reprezentowana przez minimalną moc, która zapewnia prawidłowe działanie identyfikatora w systemie. Parametr ten stanowi podstawę dla syntezy trójwymiarowego obszaru poprawnej pracy w wielokrotnych systemach RFID, przy założeniu ich prawidłowego funkcjonowania nie tylko w stanach statycznych, ale także w trudnych warunkach dynamicznych.
    Nowadays there is often a need to implement innovative solutions in Radio Frequency IDentification (RFID) which relate to different economic and public activity (in industry, commerce, science, medicine and others) [1-3]. It should be noted that among all factors affecting the operation of RFID systems, the interrogation zone is the most useful parameter at the design stage (Section 1). This parameter defines the possibility of using RFID system applications in automated identification processes [1, 4]. It also comprehensively covers the energy and communication aspects involved with operation of individual devices of the RFID system (Fig. 1). However, the power supply conditions of passive transponders are critical when the interrogation zone is calculated [5]. Two methods for determination of the chip sensitivity of a transponder working in RFID systems of UHF band are presented in this paper (Section 2). The sensitivity is represented by the minimal power (2), which ensures proper operation of the transponder in the RFID system. This parameter is the basis for synthesis of the 3D interrogation zone for anticollision UHF RFID systems operating in static (fixed location and orientation of objects in space) or dynamic state (objects changing their location and orientation in space). The professional test stand for verification of the sensitivity determination has been also constructed (Section 3).
    Źródło:
    Pomiary Automatyka Kontrola; 2012, R. 58, nr 11, 11; 956-958
    0032-4140
    Pojawia się w:
    Pomiary Automatyka Kontrola
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Development board of the autonomous semi-passive RFID transponder
    Autorzy:
    Jankowski-Mihułowicz, P.
    Węglarski, M.
    Pitera, G.
    Kawalec, D.
    Lichoń, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/201726.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    RFID
    semi-passive transponder
    energy harvesting
    sensors
    development board
    semi-pasywny transponder
    zbieranie energii
    czujniki
    Opis:
    The idea of multiband development board designed to support and advance the technique of battery-less autonomous semi-passive RFID transponders is presented in the paper. The extra function of harvesting energy from the electromagnetic field of different radio communications systems, the ultra efficient power conditioner and the energy storage block are applied in the proposed construction. The facility of utilizing gathered energy is provided to support designers in developing applications of automatic object identification. Since the evaluation board is to work without a galvanic cell, the particular emphasis is put on the mechanisms that improve energy efficient operation of the whole electronic circuit. The construction principles and operation modes (charging, cold start, sleep with charging, sleep, measurement and cut-off) of the storage unit are described in depth in the paper. The preproduction batch of the demonstrators has been manufactured on automated assembly line at ELMAK Ltd. Company, according to the elaborated model. It confirms that the author’s demonstrator of the battery-less autonomous semi-passive transponder can be reproduced on an industrial scale. On the basis of the preproduction series, the performance parameters of the final product have been estimated. The presented study should significantly contribute to the RFID technique therefore the authors set up the evaluation process of marketing research and product commercialization.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2016, 64, 3; 647-654
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Stanowisko pomiarowe parametrów procesu automatycznej identyfikacji RFID w warunkach dynamicznej zmiany lokalizacji obiektu w przestrzeni
    Laboratory stand for measuring automatic identification process parameters in RFID system under conditions of spatial dynamic changes of object localization
    Autorzy:
    Jankowski-Mihułowicz, P.
    Kalita, W.
    Węglarski, M.
    Jamróz, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/156028.pdf
    Data publikacji:
    2011
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    RFID
    identyfikacja wielokrotna
    pozycjoner 3D
    pomiary dynamiczne
    anti-collision identification
    3D positioner
    dynamic measurement
    Opis:
    W artykule zaprezentowano konstrukcję i wykorzystanie stanowiska dedykowanego do pomiarów parametrów procesu automatycznej identyfikacji RFID w warunkach dynamicznych. Podstawowym jego elementem jest opracowany pozycjoner 3D, którego konstrukcja zapewnia weryfikację funkcjonowania pojedynczego lub wielokrotnego systemu RFID. Użyteczność stanowiska zobrazowano na przykładzie modelu zmiennej orientacji identyfikatorów, wykorzystywanego podczas wyznaczania obszaru poprawnej pracy indukcyjnie sprzężonego systemu RFID. Szczególną uwagę zwrócono na problem prawidłowego zasilania identyfikatorów pasywnych.
    The correct preparation of model for bilateral interaction between objects during their dynamic changes of mutual orientation in space is usually crucial to the accurate operating of a future system in real environment [1, 2]. This type of two-sided relation between elements is also the basis for operation of the Radio Frequency IDentification (RFID) systems for labelling objects (Section 1). The main parameter determining the quality of the interaction between Read/Write Device (RWD) and an identifier (transponder) is described as an interrogation zone [3]. The need for the proposed model (Figs. 1-3 - detailed described in Section 2) verification was the inspiration for developing a special measuring stand. The designed and constructed structure of a two-axle positioner (Fig. 4) is presented in the paper (Section 3). This unit is the main component of the stand (Fig. 5) and allows any change of spatial orientation according to the elements of RFID system. Furthermore, in accordance with the project assumption, an impact of its parts on the magnetic field generated by the RWD antenna is negligible. Its spatial and time parameters are fully controlled by the dedicated software application (Fig. 5a). An integration of the positioner with specialized equipment of RFID technology laboratory in Rzeszów University of Technology allows measuring the impact of dynamicchanges in the position of a few identifiers on the parameters of the anticollision identification process for labelled objects [6].
    Źródło:
    Pomiary Automatyka Kontrola; 2011, R. 57, nr 12, 12; 1473-1476
    0032-4140
    Pojawia się w:
    Pomiary Automatyka Kontrola
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-10 z 10

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