Hybrid UHF/UWB Antenna for Passive Indoor Identification and Localization Systems

Cruz, Catarina C.; Costa, Jorge R.; Fernandes, Carlos A.

doi:10.1109/tap.2012.2220112

Cited by 66 publications

(33 citation statements)

References 20 publications

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“…The flexible display is the new EC display sample in passive-matrix structure from Acreo and the flexible battery is the 3.0 V product from Enfucell. Currently, the UHF and UWB antenna are missing for the flexible tag, but promising results of such printed antenna can already be found in Cruz et al (2013) and Khaleel et al (2012). …”

Section: Demonstration Of the Tag In The Flexible Substratementioning

confidence: 99%

Interactive UHF/UWB RFID tag for mass customization

et al. 2016

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Mass customization (MC) under the context of the Internet of Things (IoT) is expected to reform the traditional mass manufacturing. To contribute to MC from information communication and user interaction aspects, this work proposes an Ultra-High Frequency (UHF) RFID tag with an Impulse-Radio Ultra-Wide Band (IR-UWB) transmitter and an inkjet-printed Electrochromic (EC) display. First, compared to the conventional UHF RFID tags, the proposed tag shows the advantage of higher transmission data rate with still low power consumption. The response time in multi-tag accessing scenarios can be reduced to less than 500 ms per 1000 tags by the pipeline of the tag responses in IR-UWB link and the reader acknowledgments in UHF RFID link as well as by reducing the length of empty slots. Second, the tag is integrated with a flexible EC display manufactured by inkjet-printing on the polyimide substrate. It works as an automatically refreshed paper label that offers an intuitive human-to-device interface to improve the efficiency of the offline workers. To conquer the material variations and make use of the long retention time of the printed EC display, its threshold voltage is utilized and a feedback comparator enabling the display driver by the threshold voltage is designed. A System-on-Chip (SoC) is implemented in UMC 0.18 μm CMOS process. According to the experimental results: 1) the IR-UWB transmitter achieves 1.02 V pulse amplitude and 900 ps pulse duration with 18 pJ/pulse energy consumption; 2) the EC display driver automatically refreshes the display when the image fades out, and consumes 1.98 μW per 1 cm 2 display size to retain an image. The UHF/UWB RFID display tag integrated on polyimide substrate is conceptually demonstrated at the end of the paper.

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Section: Demonstration Of the Tag In The Flexible Substratementioning

confidence: 99%

Interactive UHF/UWB RFID tag for mass customization

et al. 2016

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“…As presented in Figure 5a, the tag is a planar antenna with a single metallic layer and comprises a double loop and a meandered dipole. The design was based on a previous UHF tag antenna designed by one of the authors [18]. The tag is printed on one side of a FR-4 substrate with 0.75-mm thickness, permittivity 4.3, and loss tangent 0.…”

Section: Compartment Tag Antenna (C-tag)mentioning

confidence: 99%

“…The radiating behavior is obtained with the addition of a dipole, which is meandered to reduce its length. To achieve the competition requirements in terms of antenna maximum size, and simultaneously produce an RFID tag working properly with the referred chip, it was necessary to adjust loop and dipole parameters of the original RFID antenna design in [18]. Comparing the original antenna and the C-Tag presented here, the main challenge was to resize the antenna structure while keeping the desired characteristics given that the original antenna was larger and had different chip impedance.…”

Section: Compartment Tag Antenna (C-tag)mentioning

confidence: 99%

RFID-based Smart Blood Stock System [Education Column]

Zaric

Cruz

Silva

et al. 2015

IEEE Antennas Propag. Mag.

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A complete UHF radio-frequency identification (RFID)-based system capable of localizing individual blood bags inside storage cabinet drawers is presented. It was developed to demonstrate the improvement possibility of current blood stock management systems and as the submission to the 2014 IEEE AP-S Student Design Contest: Antennas for RFID Application. The system is composed of a cabinet model, a transceiver unit, and a PC with the controlling software. A new implementation of pseudolocalization principle is used to localize the blood bags that are equipped with dedicated passive tags designed to be resilient to blood proximity and small size. The detector antennas are placed at the drawers bottoms and additional passive tags are utilized to identify individual locations in each drawer. The transceiver unit is made from off-the-shelf commercial electronic boards and wirelessly controlled by software run on the PC. The entire system is small, transportable, battery powered, and low cost.

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“…Hybrid UWB-UHF RFID systems have been already investigated [11] and several solutions of co-localization of UWB and UHF antennas are present in literature [12][13][14]. Most of them consist of smart placement of separate antennas on the same substrate, typically a UWB monopole/patch and a UHF dipole [12] or a 2.45 GHz monopole [13], or a more compact slotted UHF dipole obtained from the ground plane of the UWB monopole [14].…”

Section: Introductionmentioning

confidence: 99%

“…Most of them consist of smart placement of separate antennas on the same substrate, typically a UWB monopole/patch and a UHF dipole [12] or a 2.45 GHz monopole [13], or a more compact slotted UHF dipole obtained from the ground plane of the UWB monopole [14]. However all these solutions offer two separate antennas architectures with two different ports, one for UWB (backscattered) communication, the other for UHF communication/harvesting.…”

Section: Introductionmentioning

confidence: 99%

A Novel Integrated UWB–UHF One-Port Antenna for Localization and Energy Harvesting

Fantuzzi

Masotti

Costanzo

2015

IEEE Trans. Antennas Propagat.

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In this work a novel compact, single-port antenna combining both UWB and UHF bands is presented. This solution is proposed for next generation passive RFID tags, performing communication and localization through UWB technology and efficient energy harvesting in the UHF band, but it is also designed in order to keep compatibility with previous tags generations. The UWB communication is deployed by means of an Archimedean spiral topology, while energy harvesting at UHF is obtained by suitably extending the spiral outer arms, thus realizing a meandered dipole, without affecting the UWB behavior. The single-port architecture provides an overall size reduction, while preserving the radiation performance in both the operating bands. This solution allows a direct connection to future integrated UWB-UHF chips, to standard RFID chips, or to a diplexer for suitably combining the UWB and the UHF functionalities. A prototype of this new antenna, realized on a standard FR-4 substrate, is first presented to validate the proposed novel design. As a second step, the same architecture is scaled on a paper substrate in view of its fully eco-compatible realization to be exploited by future pervasive RFID applications. The compact design of the antenna feeding network in discrete technology is also presented.Index Terms-Ultra wideband antennas, UHF antennas, rectennas, radiofrequency energy harvesting, radiofrequency identification.

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Hybrid UHF/UWB Antenna for Passive Indoor Identification and Localization Systems

Cited by 66 publications

References 20 publications

Interactive UHF/UWB RFID tag for mass customization

Interactive UHF/UWB RFID tag for mass customization

RFID-based Smart Blood Stock System [Education Column]

A Novel Integrated UWB–UHF One-Port Antenna for Localization and Energy Harvesting

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