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Quad-Band 1 × 4 Linear MIMO Antenna for Millimeter-Wave, Wearable and Biomedical Telemetry Applications.
Tiwari, Rakesh N; Malya, K Geetha; Nandini, Girigari; Nikhitha, P Baby; Sharma, Deepti; Singh, Prabhakar; Kumar, Pradeep.
Afiliación
  • Tiwari RN; Department of Electronics & Communication Engineering, Madanapalle Institute of Technology & Science, Madanapalle 517325, Andhra Pradesh, India.
  • Malya KG; Department of Electronics & Communication Engineering, Madanapalle Institute of Technology & Science, Madanapalle 517325, Andhra Pradesh, India.
  • Nandini G; Department of Electronics & Communication Engineering, Madanapalle Institute of Technology & Science, Madanapalle 517325, Andhra Pradesh, India.
  • Nikhitha PB; Department of Electronics & Communication Engineering, Madanapalle Institute of Technology & Science, Madanapalle 517325, Andhra Pradesh, India.
  • Sharma D; Department of Electronics and Communication Engineering, G. L. Bajaj Institute of Technology and Management, Greater Noida 201306, Uttar Pradesh, India.
  • Singh P; Physics Division, School of Basic Sciences, Galgotias University, Greater Noida 203201, Uttar Pradesh, India.
  • Kumar P; Discipline of Electrical, Electronic and Computer Engineering, University of KwaZulu-Natal, Durban 4041, South Africa.
Sensors (Basel) ; 24(14)2024 Jul 09.
Article en En | MEDLINE | ID: mdl-39065825
ABSTRACT
In this paper, we present the design of a millimeter-wave 1 × 4 linear MIMO array antenna that operates across multiple resonance frequency bands 26.28-27.36 GHz, 27.94-28.62 GHz, 32.33-33.08 GHz, and 37.59-39.47 GHz, for mm-wave wearable biomedical telemetry application. The antenna is printed on a flexible substrate with dimensions of 11.0 × 44.0 mm2. Each MIMO antenna element features a modified slot-loaded triangular patch, incorporating 'cross'-shaped slots in the ground plane to improve impedance matching. The MIMO antenna demonstrates peak gains of 6.12, 8.06, 5.58, and 8.58 dBi at the four resonance frequencies, along with a total radiation efficiency exceeding 75%. The proposed antenna demonstrates excellent diversity metrics, with an ECC < 0.02, DG > 9.97 dB, and CCL below 0.31 bits/sec/Hz, indicating high performance for mm-wave applications. To verify its properties under flexible conditions, a bending analysis was conducted, showing stable S-parameter results with deformation radii of 40 mm (Rx) and 25 mm (Ry). SAR values for the MIMO antenna are calculated at 28.0/38.0 GHz. The average SAR values for 1 gm/10 gm of tissues at 28.0 GHz are found to be 0.0125/0.0079 W/Kg, whereas, at 38.0 GHz, average SAR values are 0.0189/0.0094 W/Kg, respectively. Additionally, to demonstrate the telemetry range of biomedical applications, a link budget analysis at both 28.0 GHz and 38.0 GHz frequencies indicated strong signal strength of 33.69 dB up to 70 m. The fabricated linear MIMO antenna effectively covers the mm-wave 5G spectrum and is suitable for wearable and biomedical applications due to its flexible characteristics.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Telemetría / Dispositivos Electrónicos Vestibles Límite: Humans Idioma: En Revista: Sensors (Basel) Año: 2024 Tipo del documento: Article País de afiliación: India Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
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PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Telemetría / Dispositivos Electrónicos Vestibles Límite: Humans Idioma: En Revista: Sensors (Basel) Año: 2024 Tipo del documento: Article País de afiliación: India Pais de publicación: Suiza