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Reconfigurable wide band wearable multiple input multiple output antenna with hanging resonator
Author(s) -
Biswas Ashim Kumar,
Chakraborty Ujjal
Publication year - 2020
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.32151
Subject(s) - ground plane , antenna (radio) , diversity gain , wimax , physics , mimo , telecommunications link , electrical engineering , multi band device , antenna diversity , antenna factor , electronic engineering , antenna measurement , telecommunications , acoustics , engineering , computer science , channel (broadcasting) , wireless
This letter presents a two‐element textile‐based multiple input multiple output (MIMO) antenna with switchable dual wide band characteristics. The antenna is integrated with two switches enabled hanging resonators and a partial ground plane with funnel‐shaped DGS. It covers the spectra from 3.11 to 5.15 GHz in one and 4.81 to 7.39 GHz in another switching condition. The antenna satisfies the WiMAX/C‐band downlink (3.2‐3.8/3.7‐4.2 GHz) and WLAN/C‐band uplink (5.15‐5.35/5.72‐5.825/5.925‐6.425 GHz) application bands. The resonator structures provide very high port isolation of >19.5 and >21 dB in the lower and upper band, respectively. The proposed antenna offers suitable values of diversity parameters which include envelope correlation coefficient (ECC < 0.18), diversity gain (DG > 9.9 dB), and channel capacity loss (CCL < 0.2 BPS/Hz). The simulated results are found to be in close agreement with the measured outcomes from the experiments. The proposed antenna proves to be promising for wearable MIMO applications.