Bio-multiband Antenna for Medical Diagnostic Applications

Halim, Ashraf S. Abdel; Mostafa, Mohanad; Hamdy, Omnia

doi:10.1007/978-981-16-4921-9_233-1

Cited by 1 publication

(1 citation statement)

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“…Accordingly, various antenna designs in the medical implant communication service (MICS) band have been proposed 6 . However, implantable antennas must contend with constraints such as size, operating frequency authorization, biocompatibility, and varying tissue dielectric characteristics, which impair antenna performance and specific absorption rate (SAR) due to safety concerns 7 .…”

Section: Introductionmentioning

confidence: 99%

Investigating the effect of changing the substrate material analyzed by laser-induced breakdown spectroscopy on the antenna performance

Abdel Halim,

Abdel-Salam,

Abdel-Harith

et al. 2024

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Miniaturized microstrip antennas are efficiently utilized in MICS band wearable and implantable medical applications. However, the properties of the materials employed for antenna fabrication influence its resultant parameters and play a vital role in its performance. Rogers have been widely used as a substrate material in various antenna designs. In this work, a proof of concept study has been conducted to determine how altering the substrate used in antenna construction affects antenna performance. Using the laser-induced breakdown spectroscopy (LIBS) approach, the elements present in the two distinct substrate raw materials were compared to investigate potential effects on the antenna’s performance. Given their accessibility and widespread use, two types of Rogers’ substrates, RO 3210 and RO 4003, were selected. Furthermore, two identical antenna designs were modeled and fabricated using the two substrate materials. The reflection coefficient (S11) and other antenna parameters were determined and compared. Moreover, the recorded LIBS spectra were evaluated using principle component analysis and partial least square regression techniques. The LIBS spectra showed different copper and iron contents between the two Rogers (i.e., other dielectric properties), leading to a frequency shift. Additionally, impurities in the fabricated material increase the possible losses. Consequently, the elemental contents of the utilized Rogers control the antenna’s performance and can ensure its safety in wearable and implant applications.

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Section: Introductionmentioning

confidence: 99%