SAR Analysis of Hexagonal-shaped Slot Loaded Patch Antenna for Hyperthermia Application at 434 MHz

Khan, Azharuddin; Singh, Amit Kumar

doi:10.2528/pierl23022002

Cited by 5 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Antenna operates at 434 MHz, suitable for Hyperthermia, providing SAR of 0.2 W/kg. The major drawback of this design is the large antenna dimensions with no information related to PD and EFS 36 .…”

Section: Introductionmentioning

confidence: 99%

A sub 1 GHz ultra miniaturized folded dipole patch antenna for biomedical applications

Chishti

Aziz

Aljaloud

et al. 2023

Sci Rep

View full text Add to dashboard Cite

A miniaturized folded dipole patch antenna (FDPA) design for biomedical applications operating at sub 1 GHz (434 MHz) band is presented. Antenna is fabricated on FR-4 substrate material having dimensions of 16.40 mm $$\times$$ × 8.60 mm $$\times$$ × 1.52 mm (0.023$$\lambda$$ λ $$\times$$ × 0.012$$\lambda$$ λ $$\times$$ × 0.002$$\lambda$$ λ ). Indirect feed coupling is applied through two parallel strips at bottom layer of the substrate. The antenna size is reduced by 83% through lumped inductor placed at the center path of the radiating FDPA, suitable for biomedical (implantable) applications and hyperthermia. Moreover, Impedance matching is achieved without using any Balun transformer or any other complex matching network. The proposed antenna provides an impedance bandwidth of 6 MHz (431–437 MHz) below − 10 dB and a gain of − 31 dB at 434 MHz. The designed antenna is also placed on a human body model to evaluate its performance for hyperthermia through Specific Absorption Rate (SAR), Effective Field Size (EFS), and penetration depth (PD).

show abstract

Section: Introductionmentioning

confidence: 99%