Miniaturised slot antenna for biomedical applications | Zendy

Xu LiJie | Zendy; Guo YongXin | Zendy; Wu Wen | Zendy

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Miniaturised slot antenna for biomedical applications

Author(s) -

Xu LiJie,

Guo YongXin,

Wu Wen

Publication year - 2013

Publication title -

electronics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.375

H-Index - 146

ISSN - 1350-911X

DOI - 10.1049/el.2013.2125

Subject(s) - slot antenna , antenna (radio) , computer science , electronic engineering , electrical engineering , materials science , engineering , optoelectronics , antenna measurement

An implantable slot antenna with a miniaturised size of 139.7 mm 3 (10 × 11 × 1.27 mm) for biomedical applications is proposed. Operating at the Medical Implant Communications Service (MICS) band, miniaturisation of the antenna is realised by etching a meandered slot on the top metal with one end open. A microstrip line is utilised as excitation with a shorting connected to the radiator. In addition, two U‐shaped stubs are adopted to match the feeding impedance to 50 Ω. The antenna is simulated in a one‐layer skin model as well as in the arm of a human model and measured in skin‐mimicking tissue. Good agreements can be obtained and the measurement results show that a broad bandwidth of 28.3% (from 354 to 469 MHz) for | S 11 | less than − 10 dB can be achieved.

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