Wideband Circularly Polarized MIMO Antenna for High Data Wearable Biotelemetric Devices


Iqbal, Amjad and Smida, Amor and Alazemi, Abdullah J. and Waly, Mohamed I. and Mallat, Nazih Khaddaj and Kim, Sunghwan (2020) Wideband Circularly Polarized MIMO Antenna for High Data Wearable Biotelemetric Devices. IEEE Access, 8. pp. 17935-17944. ISSN 2169-3536

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This paper presents a miniaturized circularly polarized multiple-input multiple-output (MIMO) antenna for wearable biotelemetric devices. The proposed MIMO antenna consists of four elements, which are placed orthogonally to the adjacent elements. The proposed antenna has a wideband response [10-dB bandwidth of 2210 MHz (fractional bandwidth (FBW) = 92.08%) in free space and 10-dB bandwidth of 2200 MHz (FBW = 91.66%) when worn on human-body], this frequency range covers the important and unlicensed industrial, scientific and medical (ISM) band (2.40-2.48 GHz). The antenna exhibits a wideband 3-dB circularly polarized bandwidth of 1300 MHz (FBW=54.16%) and 1040 MHz (FBW=43.33%) in free space and when worn on the body, respectively. The optimized antenna in free space (on-body) has an envelop correlation coefficient (ECC) less than 0.21 (0.23), a diversity gain (DG) greater than 9.77 dB (9.71 dB), a multiplexing efficiency (ME) greater than -0.85 dB (-0.63 dB), and a channel capacity loss (CCL) less than 0.13 bps/Hz (0.13 bps/Hz). The stable radiation, high gain, high efficiency, and good MIMO properties in free space and on human-body make the proposed antenna a suitable choice for use in high data wearable biotelemetric devices.

Item Type: Article
Uncontrolled Keywords: MIMO systems
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101-6720 Telecommunication. Including telegraphy, telephone, radio, radar, television
Divisions: Faculty of Engineering (FOE)
Depositing User: Ms Suzilawati Abu Samah
Date Deposited: 23 Dec 2020 18:57
Last Modified: 23 Dec 2020 18:57
URII: http://shdl.mmu.edu.my/id/eprint/8006


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