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A compact dual‐band diversity antenna for WLAN applications with high isolation
Author(s) -
Singh Hari Shankar,
Pandey Gaurav Kumar,
Bharti Pradutt Kumar,
Meshram Manoj Kumar
Publication year - 2015
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.28985
Subject(s) - multi band device , antenna (radio) , microwave , electrical engineering , wi fi , physics , mimo , planar , specific absorption rate , antenna diversity , optics , telecommunications , wireless , engineering , computer science , wireless network , channel (broadcasting) , computer graphics (images)
A compact dual‐band multiple‐input multiple‐output (MIMO) antenna is presented for wireless local area networks (2.45/5.8 GHz) applications in mobile handsets. The proposed MIMO antenna consists of two planar inverted‐F antennas loaded with inverted J‐shaped slot and inverted L‐shaped slot. The defected ground structure of fork shaped slot is proposed between antenna elements to achieve high port‐to‐port isolation (<−20 dB). The distribution of specific absorption rate (SAR) over 1‐g and 10‐g tissues in human head are also studied for two different positions of the antenna at 2.45/5.8 GHz frequencies through SAR to PEAK location spacing ratio (SPLSR) according to Federal Communication Commission standard. The values of SPLSR are observed over 1‐g of tissues between 0.107 and 0.246 W/kg/cm and 0.304–0.122 W/kg/cm and over 10‐g of tissues between 0.242 and 0.124 W/kg/cm and 0.154 and 0.045 W/kg/cm at 2.45 GHz and 5.8 GHz, respectively. The S‐parameters, surface current distribution, diversity parameters, and radiation patterns are presented. The fabricated prototype are measured and obtained good agreement with simulated results. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:906–912, 2015