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Characteristics of a 2.4‐GHz compact shorted patch antenna in close proximity to a lossy medium
Author(s) -
Wong KinLu,
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.20858
Subject(s) - lossy compression , patch antenna , antenna measurement , microstrip antenna , antenna efficiency , radiation pattern , antenna (radio) , electrical engineering , microwave , acoustics , materials science , physics , optics , engineering , telecommunications , computer science , artificial intelligence
Impedance and radiation characteristics of a 2.4‐GHz compact shorted‐patch antenna in close proximity to a lossy medium are investigated. In this study, a lossy medium with permittivity and conductivity close to those of a human torso or arm at 2.4 GHz is studied. The results obtained show that the antenna can still provide acceptable operating bandwidth (> 84 MHz covering the 2.4‐GHz WLAN band) and efficiency (> 60%) when the antenna is placed very close (1‐mm spacing only) to the lossy medium. The results indicate that the compact shorted‐patch antenna studied is promising for application as a body‐worn antenna on the body. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 45: 480–483, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20858