access icon free Dual-band dual-mode patch antenna for on–on–off WBAN applications

A dual-band dual-mode patch antenna for on–on–off wireless body area network (WBAN) applications is proposed. The antenna consists of a half-circular patch with two shorting posts to generate a TM41 higher-order resonant mode and a bottom ground slot to generate additional resonance. To reduce the antenna size without seriously affecting the radiation pattern, the antenna is cut in half and operates in half-mode. The antenna has a vertical monopole-like radiation pattern in the 2.45 GHz industrial, scientific and medical (ISM) band and a horizontal monopole-like radiation pattern in the 5.8 GHz ISM band. To evaluate the body effect, both 2.45 and 5.8 GHz muscle-equivalent phantoms were used. The overall dimensions of the proposed antenna is 30.5 × 62 × 3.15 mm.

Inspec keywords: body area networks; microwave antennas; antenna radiation patterns; microstrip antennas; UHF antennas

Other keywords: dual-band dual-mode patch antenna; industrial scientific and medical band; radiation pattern; on-on-off WBAN; ISM band; vertical monopole-like radiation pattern; horizontal monopole-like radiation pattern; on–on–off wireless body area network; frequency 2.45 GHz; TM41 higher-order resonant mode; muscle-equivalent phantoms; half-circular patch; frequency 5.8 GHz

Subjects: Single antennas; Biomedical communication; Radio links and equipment

References

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      • 1. Hall, P.S., Hao, Y.: ‘Antennas and propagation for body-centric wireless communications’ (Artech House, Norwood, MA, 2006).
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      • 5. Gabriel, C.: ‘4-Cole-Cole analysis on compilation of the dielectric properties of body tissues at RF and microwave frequencies’. Brooks Air Force Technical Report, AL/OE-TR-1996-0037, Available at http://www.fcc.gov/fcc-bin/dielec.sh, accessed June 1996.
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http://iet.metastore.ingenta.com/content/journals/10.1049/el.2014.2551
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