Journal
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
Volume 64, Issue 1, Pages 123-129Publisher
WILEY
DOI: 10.1002/mop.33040
Keywords
artificial magnetic conductor; monopole antenna; tri-band; WBAN; wearable
Categories
Funding
- Zhejiang Public Welfare Research Program [LGF20H160020]
- Zhejiang Medical and Health Science and Technology Project [2020PY032]
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The wearable flexible antenna proposed in this study, integrated with artificial magnetic conductor, operates at multiple frequency bands and has good conformity and performance for wireless body area network applications.
A wearable flexible tri-annular square ring monopole antenna with artificial magnetic conductor (AMC) is proposed. The antenna operates at the ISM band (2.28-2.51 GHz, 5.2-6 GHz) and at WiMAX band (3.5-4GHz) for wireless body area network (WBAN) applications. The number of antenna operating bands is determined by the number of square rings. A tri-band AMC array is integrated to reduce the specific absorption rate (SAR) and the antenna profile. The overall size of antenna with AMC array is 90 x 90 x 6 mm(3). The peak gain of the antenna is 4.8, 5.1, and 6.2 dBi at three frequency bands, respectively. The proposed antenna and AMC were printed on a flexible polyimide film. The antenna has good conformity, easy processing, lightweight and low profile of 0.048 lambda(0) at 2.4 GHz. The antenna was fabricated and measured where a very good agreement between simulated and measured results for S-11 and radiation pattern. The measured antenna radiation efficiency is more than 70% in the operating frequency band.
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