Design of Flexible Parasitic Element Patch Antenna for Biomedical Application

Naik, Ketavath Kumar; Teja, S.; Sailaja, B. V. S.; Sri, P. Amala Vijaya

doi:10.2528/pierm20030406

Cited by 21 publications

(9 citation statements)

References 15 publications

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“…Electromagnetic radiation may pose health concerns to humans, and these risks are quantified using the SAR. The following equation describes the link between input power and SAR [ 10 ]: where ‘ σ ’ and ‘ ρ ’ the thermal conductivity (S/m), mass density (kg/m 3 ), and electric field intensity (V/m) are denoted by S and E, respectively. According to below [ 13 ], the electric power intensity is inversely proportional to the signal power.…”

Section: Fabricated Prototype Of the Stated Antennamentioning

confidence: 99%

“…Electromagnetic radiation may pose health concerns to humans, and these risks are quantified using the SAR. The following equation describes the link between input power and SAR [10]:…”

Section: Specific Absorption Rate (Sar)mentioning

confidence: 99%

“…A biocompatible CP antenna that can be used on the human body is challenging to construct since the tissues have varying dielectric characteristics. Many in-body CP antennas are created for wireless communication between (402-405 MHz) [6][7][8][9][10][11][12] and (2.4-2.48 GHz) [13][14][15][16][17][18] in the mid radio band range. Biomedical implants may now make use of a small, broadband antenna operating in the MICS band (403 MHz).…”

Section: Introductionmentioning

confidence: 99%

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Single-fed broadband CPW-fed circularly polarized implantable antenna for sensing medical applications

Butt

Khan²,

Ahmad

et al. 2023

PLoS ONE

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Biomedical telemetry relies heavily on implantable antennas. Due to this, we have designed and tested a compact, a circularly polarized, a low-profile biomedical implantable antenna that operate in the 2.45 GHz ISM band. In order to keep the antenna compact, modified co-planar waveguide (CPW) technology is used. Slotted rectangular patch with one 45-degree angle slot and truncated little patch on the left end of the ground plane generate a frequency-range antenna with circular polarization. Using a 0.25-millimeter-thick Roger Duroid-RT5880 substrate with a thickness of εr = 2.2, tanδ = 0.0009 provides flexibility. The volume of the antenna is 21 mm x 13.5 mm x 0.254 mm (0.25λg × 0.16λg × 0.003λg). The antenna covers 2.35–2.55 GHz (200 MHz) in free space and 1.63–1.17 GHz (1.17 GHz) in epidermal tissue. With skin tissue that has more bandwidth, the (x and y)-axis bends of the antenna are also simulated via the simulation. Bended antenna simulations and measurements show excellent agreement. At 2.45 GHz, the skin-like gel had -10dB impedance and 3dB axial ratio (AR) bandwidths of 47.7 and 53.8%, respectively. The ultimate result is that the SAR values are 0.78 W/kg in skin over 1 g of bulk tissue, as determined by simulations. The suggested SAR values are lower than the FCC’s maximum allowable limit (FCC). This antenna is small enough to be implanted in the body, making it perfect for biomedical applications.

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Section: Fabricated Prototype Of the Stated Antennamentioning

confidence: 99%

“…Electromagnetic radiation may pose health concerns to humans, and these risks are quantified using the SAR. The following equation describes the link between input power and SAR [10]:…”

Section: Specific Absorption Rate (Sar)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Single-fed broadband CPW-fed circularly polarized implantable antenna for sensing medical applications

Butt

Khan²,

Ahmad

et al. 2023

PLoS ONE

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“…Microstrip antenna array are mostly used for high gain wireless power transfer medical implants applications. Many array antennas are realized like 1 x2 antenna array for RF power transfer in pacemaker [14], UWB antenna for human body changes measurement in footwear applications [15], square patch antenna array with complimentary split ring resonators [16], CP implanted patch antenna [17] for impedance matching, rectangular patch antenna with a rectangular slot [18] for ISM band applications, square shape CSRR [19] to reduce the power observed inside the body, omnidirectional pattern radiation characteristics analysis in close proximity with human body [20], hexagonal shape patch antenna [21] for ISM application, metamaterial antenna with 2 × 2 array of H-shape unit cell [22] for WBAN applications, Flexible Parasitic Element Patch (FPEP) antenna with defects on ground plane at ISM band for biomedical application [23], etc. One of the challenges in antenna array large scale production for medical applications is the use of non conventional flexible substrate like fabric and plastic [24].…”

Section: Introductionmentioning

confidence: 99%

Trapezoidal Microstrip Patch Antenna Array for Low Frequency Medical Applications

Suganthi¹,

Selvan

2022

Wireless Pers Commun

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This paper presents the design of flexible trapezoidal radiating patch antenna array with FR4 substrate for onbody low frequency medical applications. Initial single element trapezoidal patch antenna having size of 30 x 70 mm has been modified with 2 x 2 array with same size for reduction in dimension. The array resonates at 1.891 GHz with impedance bandwidth of 80 MHz and low return loss of -26.19 dB. The VSWR of 1.103 validate the activeness of the proposed antenna array having maximum surface current 133.1 (A/m) and directivity of 4.48 dBi. The antenna array exhibit the H-Field strength of 160.52 (A/m) and E-Field of 36093.4 (V/m) prove the radiation capability at low frequency on body application. The antenna has been simulated in low frequency S band form 2 GHz to 4 GHz and compared with other works in literature. These properties demonstrate the suitability of proposed array antenna for on body medical wireless applications.

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Section: Introductionmentioning

confidence: 99%

Trapezoidal Microstrip Patch Antenna Array for Low Frequency Medical Applications

Suganthi¹,

Palavesam²

2021

Preprint

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This paper presents the design of flexible trapezoidal radiating patch antenna array with FR4 substrate for onbody low frequency medical applications. The array resonates at 1.89 GHz with impedance bandwidth of 80 MHz and low return loss of -26.19 dB. The VSWR of 1.103 validate the activeness of the proposed antenna array having maximum surface current 133.1 (A/m) and directivity of 4.48 dBi. The antenna array exhibit the H-Field strength of 160.52 (A/m) and E-Field of 36093.4 (V/m) prove the radiation capability at low frequency on body application. These properties demonstrate the suitability of proposed array antenna for on body medical wireless applications.

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Design of Flexible Parasitic Element Patch Antenna for Biomedical Application

Cited by 21 publications

References 15 publications

Single-fed broadband CPW-fed circularly polarized implantable antenna for sensing medical applications

Single-fed broadband CPW-fed circularly polarized implantable antenna for sensing medical applications

Trapezoidal Microstrip Patch Antenna Array for Low Frequency Medical Applications

Trapezoidal Microstrip Patch Antenna Array for Low Frequency Medical Applications

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