An implanted dipole antenna for RFID-based patient monitoring system

Sirait, Dony Canisius; Basari, Basari; Zulkifli, Fitri Yuli; Rahardjo, Eko Tjipto

doi:10.1109/qir.2013.6632553

Cited by 8 publications

(8 citation statements)

References 8 publications

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“…The dimensions of the proposed antenna are comparable to the ones achieved by Refs. , and . Antenna structures of Refs.…”

Section: Simulation Results and Discussionmentioning

confidence: 99%

“…However, the short read range and low data rates associated with these bands make them unsuitable for real‐time subject monitoring applications. Recent research work on the implantable antenna design shows an inclination toward using ultra‐high‐frequency and industrial‐scientific‐medical (ISM) as the operational bands to achieve longer activation distances and high data rates …”

Section: Introductionmentioning

confidence: 99%

“…A meandered PIFA design achieves the required compact size but at the cost of degraded radiation performance . In this regard, folded and loop structures offer a better combination of size miniaturization and radiation efficiency …”

Section: Introductionmentioning

confidence: 99%

“…Recent research work on the implantable antenna design shows an inclination toward using ultra-high-frequency and industrial-scientificmedical (ISM) as the operational bands to achieve longer activation distances and high data rates. [12][13][14][15][16][17][18][19][20][21][22][23] Impedance mismatch and radiation efficiency degradation are the two main concerns of the in-body tag antennas. Designing the antenna directly inside a phantom mimicking the electromagnetic behavior of the targeted body part for the implant helps in tackling the impedance mismatch issue.…”

Section: Introductionmentioning

confidence: 99%

“…13,14 In this regard, folded and loop structures offer a better combination of size miniaturization and radiation efficiency. [18][19][20][21][22][23] This research article presents a tag antenna operating in the ISM band for in-body communication. The use of high permittivity substrate and folded structure aids in achieving a miniaturized antenna with dimensions (10 mm 3 15 mm 3 2 mm) appropriate for implantable applications.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

A compact implantable RFID tag antenna dedicated to wireless health care

Aslam

Khan

Azam

et al. 2017

Int J. RF Microw. Comput. Aided Eng.

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Implantable tag antennas are an integral component of contemporary pervasive patient monitoring setups envisioned to reduce the medical errors and improve the quality of health care facilities. These tags, embedded into the human body, transmit critical patient information to the external equipment via a wireless communication link. This research article presents an implantable compact folded dipole antenna of size 10 mm × 15 mm × 2 mm, designed to operate in the industrial‐scientific‐medical band (2.4‐2.48GHz). A three‐layered phantom representing the human arm is used to evaluate the subcutaneous antenna performance. The tag antenna embedded in the middle of the fat layer offers a maximum gain of −16.3 dBi. The tag antenna performance as a function of implant position and phantom dimensions is analyzed. Link budget calculations show that with the achieved antenna gain the link power exceeds the required power by 38.37 dBm, and hence wireless communication is viable.

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“…The dimensions of the proposed antenna are comparable to the ones achieved by Refs. , and . Antenna structures of Refs.…”

Section: Simulation Results and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A compact implantable RFID tag antenna dedicated to wireless health care

Aslam

Khan

Azam

et al. 2017

Int J. RF Microw. Comput. Aided Eng.

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A miniaturized circularly polarized implantable RFID antenna for biomedical applications

Zhang

Liu

et al. 2019

Int J RF Microw Comput Aided Eng

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A miniaturized circularly polarized implantable antenna operating at ultrahigh frequency band (902-928 MHz) for radio frequency identification biomedical monitoring is first presented and experimentally validated in this article. The proposed antenna features a compact volume with a dimension of π × (6) 2 × 1.27 mm 3 by employing an extended ring with meandered lines for size reduction. Moreover, adjusting the length of symmetrical meandered lines can introduce two orthogonal modes, which makes for good performance of circular polarization. Superb impedance matching between the chip and tag antenna is well implemented by applying a modified T-match stub. In the simulation, the antenna achieves a −10-dB impedance bandwidth of 42 MHz (902-944 MHz) and 3-dB axial-ratio bandwidth is 53 MHz (892-945 MHz). Finally, the specific absorption rate is also calculated for human safety and the measured reading range reaches the maximum distance of about 87 cm. K E Y W O R D Scircular polarization, implantable antenna, miniaturized tag antenna, radio frequency identification

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Tag diversity of inkjet printed body‐worn radio frequency identification integrated medical sticking plasters for wireless monitoring

Oyeka

Batchelor

Ziai

et al. 2016

Healthcare Technology Letters

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1. Introduction: Radio Frequency Identification (RFID) has found use in areas such as access control systems, point of sale, automatic toll collection, animal tracking, vehicle tracking and immobilization and also in the retail supply chain [1]. For medical applications, RFID technology can be used for patient tracking and safeguarding [2] as well as for equipment inventory management. RFID tags have also been used for physiological monitoring [3].The use of wireless monitoring in a hospital environment aims to improve the efficiency of patient care. Advances have seen the use of RFID technology as a standalone system or in combination with other wireless technologies [4]. Proposed battery-less wireless health sensors [5] will transmit patient vital data and therefore the risks associated with signal outage are high making it important to keep skin mounted RFID tag read failure to a minimum.Human tracking and monitoring can be achieved with RFID chips embedded in the skin [6] however this is very short read range and is inappropriate for non-permanent applications. Alternatively RFID wristbands [7] are widely used but must go on the wrist or ankle and offer only a loose contact to the skin which compromises their use for monitoring. For instance, it may not be optimal for physiological measurements such as heartbeat and pulse which require close skin contact [8]. The use of RFID for medical sensing has also been reported in works such as [9] where an adhesive sensor badge is reported for sensing biomarkers in sweat and in [10] for monitoring surface temperature.Diversity is a technique used in communication systems where alternative transmission mechanisms are introduced to reduce the chance of losing communication (signal outage). In RFID, the chances of successfully reading a tagged object or person are increased if more than one tag is used. This is referred to as tag diversity. In [11] a plaster operating over a few centimetres at the NFC frequency of 13.56 MHz was presented and in [12] the most efficient tag placement for two worn UHF tags communicating with an external reader was studied using 3 mm thick textile slotted patch antennas. The study indicated more than 2 tags of the slotted patch design were required to provide coverage all around the body. Other works such as [13] have sought to improve the performance of on-body RFID tags by using dual tag antenna diversity to reduce the probability of phase cancellation between the RFID reader continuous carrier wave and the backscattered signal from the tag. Diversity is already often implemented at the reader end and in [14] a non-RFID body mounted wireless system utilizes multiple antennas at the off-body base station. While this results in an improvement in outage, it will also lead to an increase in infrastructure

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An implanted dipole antenna for RFID-based patient monitoring system

Cited by 8 publications

References 8 publications

A compact implantable RFID tag antenna dedicated to wireless health care

A compact implantable RFID tag antenna dedicated to wireless health care

A miniaturized circularly polarized implantable RFID antenna for biomedical applications

Tag diversity of inkjet printed body‐worn radio frequency identification integrated medical sticking plasters for wireless monitoring

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