Abstrakti
This article presents a novel ultrawideband (UWB)
antenna for multiple-input-multiple-output (MIMO) operations
in wireless capsule endoscopy (WCE) applications. The design is
capable of supporting high channel capacity for real-time transmission and addressing the frequency detuning effect. Thanks to
the conformal meander structure, the design efficiently uses the
inner wall space of the capsule, achieving both compactness and
wideband operation. The proposed MIMO antenna consists of
two elements, each occupying a volume of 7.192 mm3
. The experimental measurements are performed inside a minced pork meat.
The antenna covers a bandwidth range from 0.61 to 1.51 GHz,
achieving a fractional bandwidth (FBW) of 84.91% and a peak
gain of −30.4 dBi. An isolation level greater than 20 dB is
maintained, indicating low mutual coupling between MIMO
antenna elements. The specific absorption rate (SAR) is evaluated
to be 0.0202 W/kg at a transmitted power of −16 dBm, and
the link margin (LM) is calculated to be 20 dB at a distance
of 2 m. Therefore, the proposed bio-telemetry system confirms
its suitability for safe and high data rate communications.
antenna for multiple-input-multiple-output (MIMO) operations
in wireless capsule endoscopy (WCE) applications. The design is
capable of supporting high channel capacity for real-time transmission and addressing the frequency detuning effect. Thanks to
the conformal meander structure, the design efficiently uses the
inner wall space of the capsule, achieving both compactness and
wideband operation. The proposed MIMO antenna consists of
two elements, each occupying a volume of 7.192 mm3
. The experimental measurements are performed inside a minced pork meat.
The antenna covers a bandwidth range from 0.61 to 1.51 GHz,
achieving a fractional bandwidth (FBW) of 84.91% and a peak
gain of −30.4 dBi. An isolation level greater than 20 dB is
maintained, indicating low mutual coupling between MIMO
antenna elements. The specific absorption rate (SAR) is evaluated
to be 0.0202 W/kg at a transmitted power of −16 dBm, and
the link margin (LM) is calculated to be 20 dB at a distance
of 2 m. Therefore, the proposed bio-telemetry system confirms
its suitability for safe and high data rate communications.
| Alkuperäiskieli | Englanti |
|---|---|
| Artikkeli | 3411703 |
| Sivut | 5724 |
| Sivumäärä | 5732 |
| Julkaisu | IEEE Transactions on Antennas and Propagation |
| Vuosikerta | 72 |
| Numero | 7 |
| DOI - pysyväislinkit | |
| Tila | Julkaistu - 14 kesäk. 2024 |
| OKM-julkaisutyyppi | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä |
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