SAR reduction using dual band EBG method based on MIMO wearable antenna for WBAN applications

Kumkhet, Boonyarit; Rakluea, Paitoon; Wongsin, Norakamon; Sangmahamad, Pubet; Thaiwirot, Wanwisa; Mahatthanajatuphat, Chatree; Chudpooti, Nonchanutt

doi:10.1016/j.aeue.2022.154525

Cited by 20 publications

(13 citation statements)

References 30 publications

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“…The reported antenna has the smallest footprint compared to Musa and colleagues 5,7,9,10,13,14 leading to a miniaturized solution. The percentage miniaturization realized by the proposed antenna compared to Musa and colleagues 5,7,9,10,13,14 are 20%, 46%, 87%, 19%, 48%, and 55%, respectively. 3.…”

Section: Diversity Analysismentioning

confidence: 94%

“…The designed antenna has the smallest profile height unlike the research reported in Musa and colleagues. [5][6][7][8][9][11][12][13][14][15] Extreme thinness can provide maximum conformability. Hence the reported antenna has good profile height reduction.…”

Section: Diversity Analysismentioning

confidence: 99%

“…Further, the antennas reported in Musa and colleagues 5,7,8 are not attempted for MIMO implementation in the WBAN scenario. Further, unlike Althuwayb and colleagues, [9][10][11][13][14][15] more elements are packed to enhance the channel capacity in the WBAN.…”

Section: Diversity Analysismentioning

confidence: 99%

“…The specific absorption rate (SAR) has been enhanced in a dual-band MIMO antenna using electromagnetic bandgap structures. 13 The literature also recorded some other important developments in the design of wearable MIMO antennas. 14,15 On the other hand, 5G technology demands an antenna with supreme characteristics to switch the antenna beam based on the channel properties.…”

Section: Introductionmentioning

confidence: 99%

“…A dual‐band MIMO antenna using organza fabric is reported in Shirvani et al 12 for 2.4/5 GHz wearable applications. The specific absorption rate (SAR) has been enhanced in a dual‐band MIMO antenna using electromagnetic bandgap structures 13 . The literature also recorded some other important developments in the design of wearable MIMO antennas 14,15 .…”

Section: Introductionmentioning

confidence: 99%

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Conformal eight‐port dual band antenna with switchable radiation pattern for 5G enabled on‐body wireless communications

Satpathy,

G. P.

2023

Micro & Optical Tech Letters

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A novel conformal quasi‐yagi antenna and its Multiple Input Multiple Output (MIMO) implementations for wireless body area networks (WBAN) application is reported in this letter. The antenna is developed on a 0.05 mm thin polyimide substrate making the antenna more flexible and conformal. The footprint of the proposed antenna is 35 × 35 mm with a dual dipole arm‐like structure making it resonant at 2.45 and 3.5 GHz covering the industrial scientific and medical and 5G bands for WBAN communications. The antenna is excited using a microstrip‐to‐slotline termination suitably terminated by a circular patch to realize the impedance matching. The ground plane is shaped to maintain good isolation between neighboring antennas during the eight‐element MIMO antenna development. The MIMO antennas are arranged circularly to achieve good antenna coverage along the azimuth directions. The antenna generates a tangential radiation pattern to the plane of the human body making it suitable for on‐body wireless communications. The proposed antenna offers a rotatable radiation pattern by appropriately choosing the antenna port of excitation. The proposed MIMO antenna offers an average gain of 4.5 and 5.2 dBi at 2.45 and 3.5 GHz, respectively. The MIMO antenna parameters are evaluated and presented. The calculated MIMO parameters are within the acceptable limits. Thus, the flexible nature with rotatable directional radiation patterns has made this antenna an attractive choice for on‐body communications in WBAN.

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