Dual Graded Index Dielectric Lens System for Hyperthermia

Albarracin-Vargas, Fernando; Vega, Félix; Kasmi, Chaouki; Alyafei, Fahad; Baer, Christoph

doi:10.23919/ursigass49373.2020.9232223

Cited by 2 publications

(2 citation statements)

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“…To compensate for the losses due to the high dielectric permittivity of the human body, successive layers of materials with increasing permittivity can be utilized for progressive adaption of electromagnetic waves between the air-tissue mediums. Two flat dielectric graded-index lenses were designed to increase the matching between free space and tissues, for external hyperthermia [137]. This enhanced matching resulted in an effective propagation of electromagnetic waves within lossy and nonhomogeneous media.…”

Section: B Device Accuracy and Privacymentioning

confidence: 99%

Next Generation Cognition-Aware Hearing Aid Devices With Microwave Sensors: Opportunities and Challenges

et al. 2022

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The strong association between hearing loss and cognitive decline has developed into a major health challenge that calls for early detection, diagnosis and prevention. Hearing loss usually results in severe health implications that include loss of mobility, communication problems and cognitive decline. This study provides an overview of the effects of hearing loss on cognition and progressive neurological disorders with a discussion on the future scope of microwave portable technologies in care homes arrangement. Moreover, the efficacy of hearing aids in reversing cognitive decline and dementia has been investigated. The interconnection between hearing loss, cognitive load and neurodegeneration is also explored. Furthermore, this study looks into the prospects of using portable microwave sensors for the detection and monitoring of cognitive load. For early detection of dementia, this study proposes the integration of microwave sensors with hearing aid devices. Implications and design challenges of portable antenna systems for neurodegeneration detection have also been considered. Future improvement areas regarding robust analysis and diagnosis, system accuracy and security, user-centricity and device privacy for a broader clinical implementation are also discussed.

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Section: B Device Accuracy and Privacymentioning

confidence: 99%

Next Generation Cognition-Aware Hearing Aid Devices With Microwave Sensors: Opportunities and Challenges

et al. 2022

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“…In the antenna design, the complex phase delays method was applied in each cell elements to produce EM concentration to the specific focal point of the treatment area. A dual graded index dielectric lens system operated at 2450 MHz has been designed [ 14 ]. The plane wave source was used in the system.…”

Section: Introductionmentioning

confidence: 99%