Research Article
Design and Study of a Miniaturized Millimeter Wave Array Antenna for Wireless Body Area Network
Table 7
On-body comparison of the 2 × 2 array antenna for different distances.
| | Parameters | Free space | On-body 2 mm | On-body 4 mm | On-body 6 mm | On-body 8 mm |
| | Bandwidth (GHz) | >27.43 | 40 | 20.121 | 20.375 | 20.438 | | Return loss (dB) 60 GHz | −15.088223 | −13.328762 | −14.319809 | −13.68425 | −13.50852 | | Gain (dBi) | 6.65 | 9.71 | 8.22 | 7.87 | 7.74 | | Radiation efficiency (%) | 80.39% | 57.32 | 62.01 | 64.15 | 66.42 | | Total efficiency (%) | 77.90% | 54.65 | 59.72 | 61.41 | 63.46 | | VSWR | 1.4272758 | 1.5495978 | 1.4762782 | 1.5218541 | 1.5353833 |
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