Design and characterization of a miniaturized implantable UHF RFID tag based on LTCC technology

García-Miquel, Aleix; Medina-Rodriguez, B.; Vidal, N.; Ramos, F.; Roca, E.; López-Villegas, J.M.

doi:10.23919/eucap.2017.7928224

Cited by 3 publications

(3 citation statements)

References 14 publications

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“…We observe a good matching at the working frequency (868 MHz, BW = 70 MHz), and the total gain reaches a maximum value of −17.5 dBi (Figure 9(a)) which is greater than the minimum gain of −28.9 dBi previously calculated for the link budget in Eq. (10). This gain value is acceptable considering the antenna dimensions and the other works previously presented in [15,[32][33][34][35].…”

Section: Design and Optimization Of The Antenna In Its Environmentsupporting

confidence: 52%

“…Moreover, unfortunately, its performance in terms of efficiency and gain is not given by the authors. In [10], the design and characterization of a compact multilayer passive UHF-RFID tag solution for implantable biotelemetry based on Low-Temperature Co-fired Ceramic (LTCC) technology are presented. It consists in a spiral PIFA (Planar Inverted-F Antenna) antenna matched to a UHF embedded integrated circuit source thanks to an inductor line.…”

Section: Introductionmentioning

confidence: 99%

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A Miniature Implanted Antenna for Uhf Rfid Applications

Nguyễn¹,

Diallo²,

Thuc³

et al. 2020

PIER C

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In this paper, the design of a miniature antenna dedicated to be implanted in a small animal and intended to work in the European UHF RFID (865-868 MHz) band is presented. One of the goals of this work is the miniaturization of the radiating element while preserving its efficiency to allow a reliable communication between an external interrogating reader and the implanted device. The radiating element is a small rectangular loop antenna associated with a dipole allowing impedance matching. The antenna has dimensions of 2.4 mm × 25.4 mm × 0.5 mm and integrates an Impinj Monza 4 chip presenting an impedance of 5.5 − j74 Ohms at 868 MHz. The antenna is designed and optimized by using the ANSYS HFSS software. The obtained results show a simulated radiation efficiency of 0.7% and simulated total gain of −17.5 dBi. A prototype is realized, and RSSI measurements have demonstrated the possibility of reliable wireless communications between the implanted antenna and an external reader. In addition, Specific Absorption Rate (SAR) calculation indicates that this implanted antenna meets the required safety regulations.

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Section: Design and Optimization Of The Antenna In Its Environmentsupporting

confidence: 52%

Section: Introductionmentioning

confidence: 99%

A Miniature Implanted Antenna for Uhf Rfid Applications

Nguyễn¹,

Diallo²,

Thuc³

et al. 2020

PIER C

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show abstract

“…2) is π x 13.5 2 x 70 mm 3 , with ε req = 40, tanδ eq = 0.39 and σ eq = 0.79 (S/m), being respectively the equivalent relative permittivity, the dielectric loss tangent and the conductivity, taking into account the different layers of the animal body. The total antenna volume is 30.5 mm 3 , which is very small compared to other structures operating in the same frequency band [8], [9]. In Fig.…”

Section: Design Of the Uhf Tag Implanted Antennamentioning

confidence: 93%

Wireless interrogation of small animal phantoms with a miniature implanted UHF RFID tag

Nguyễn

Diallo

Thuc

et al. 2017

2017 IEEE Conference on Antenna Measurements &Amp; Applications (CAMA)

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In this article, the RSSI measurement with a miniature implanted tag into a small animal phantom, intended to work in the European UHF RFID band is presented. The miniaturization of the radiating element while preserving its efficiency allows the reliable communication between an external interrogation device and the identification tag aimed to be implanted into a small animal. The paper first presents the design of the miniature radiating element. Then, the detailed process to calculate the link budget allowing the estimation of the theoretical power received by the reader is described, showing that the gain of the proposed antenna is adapted to the application. Finally, the measurement of the Received Signal Strength Indication (RSSI) level received by the reader antenna for different positions of a mouse phantom model in a cage is presented. Results show that the proposed antenna can allow the identification of the small animal whatever its position in the cage.

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Commercial Off-the-Shelf Components (COTS) in Realizing Miniature Implantable Wireless Medical Devices: A Review

Khan

Mugisha

Tsiamis

et al. 2022

Sensors

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Over the past decade, there has been exponential growth in the per capita rate of medical patients around the world, and this is significantly straining the resources of healthcare institutes. Therefore, the reliance on smart commercial off-the-shelf (COTS) implantable wireless medical devices (IWMDs) is increasing among healthcare institutions to provide routine medical services, such as monitoring patients’ physiological signals and the remote delivery of therapeutic drugs. These smart COTS IWMDs reduce the necessity of recurring visits of patients to healthcare institutions and also mitigate physical contact, which can minimize the possibility of any potential spread of contagious diseases. Furthermore, the devices provide patients with the benefit of recuperating in familiar surroundings. As such, low-cost, ubiquitous COTS IWMDs have engendered the proliferation of telemedicine in healthcare to provide routine medical services. In this paper, a review work on COTS IWMDs is presented at a macro level to discuss the history of IWMDs, different networked COTS IWMDs, health and safety regulations of COTS IWMDs and the importance of organized procurement. Furthermore, we discuss the basic building blocks of IWMDs and how COTS components can contribute to build these blocks over widely researched custom-built application-specific integrated circuits.

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Design and characterization of a miniaturized implantable UHF RFID tag based on LTCC technology

Cited by 3 publications

References 14 publications

A Miniature Implanted Antenna for Uhf Rfid Applications

A Miniature Implanted Antenna for Uhf Rfid Applications

Wireless interrogation of small animal phantoms with a miniature implanted UHF RFID tag

Commercial Off-the-Shelf Components (COTS) in Realizing Miniature Implantable Wireless Medical Devices: A Review

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