A high‐efficiency internal WLAN antenna for wireless devices operating in close proximity to a lossy medium | Zendy

Wong KinLu | Zendy; Chang ChihHua | Zendy; Lin ChunI | Zendy

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A high‐efficiency internal WLAN antenna for wireless devices operating in close proximity to a lossy medium

Author(s) -

Wong KinLu,

Chang ChihHua,

Lin ChunI

Publication year - 2005

Publication title -

microwave and optical technology letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.304

H-Index - 76

eISSN - 1098-2760

pISSN - 0895-2477

DOI - 10.1002/mop.21134

Subject(s) - electrical engineering , lossy compression , antenna efficiency , loop antenna , omnidirectional antenna , antenna measurement , multi band device , microstrip antenna , patch antenna , engineering , antenna (radio) , electronic engineering , coaxial antenna , computer science , artificial intelligence

This paper presents a dual‐loop patch antenna capable of providing high radiation efficiency for operation in close proximity to a lossy medium with permittivity and conductivity close to those of a human torso or arm. For operation as an internal WLAN (wireless local area network) antenna in a wireless device, the dual‐loop patch antenna with a low profile of 3 mm can cover the operating bandwidth of the 2.4‐GHz band (2400–2484 MHz), showing a high radiation efficiency of about 88%, when placed very close to the lossy medium with only 1‐mm spacing. The obtained results make the proposed antenna very promising for body‐worn or wearable antenna applications. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 47: 233–236, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21134

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