Wideband microstrip‐based wearable antenna backed with full ground plane

Hussin, Ezzaty Faridah Nor Mohd; Soh, Ping Jack; Jamlos, Mohd Faizal; Lago, Herwansyah; Al‐Hadi, Azremi Abdullah

doi:10.1002/mmce.21739

Cited by 14 publications

(8 citation statements)

References 25 publications

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“…With the processing technology of flexible improving and free accessing to the ISM band around the world, Polyethylene Terephthalate (PET) [5], Polydimethylsiloxane (PDMS) [6], felt [7], textile fabrics [8], and other flexible materials have been widely used as antenna substrates. Patch, PIPF, monopole, and other antenna structures have been widely used in [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

A Novel Compact Wearable Antenna Design for Ism Band

Yin¹,

Ye²,

Yu³

2021

PIER C

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A compact wearable antenna operating at 2.45 GHz with a novel Electromagnetic Band Gap (EBG) structure as a reflector is proposed. The broadband monopole is used as the main radiator of the antenna, and the gradient feeder structure and etched slot on the ground are used to adjust the matching effect of the antenna port. The current path is extended, and the structure is made more compact by slotting the surface of the EBG cell. Then, a 3 × 3 EBG reflector is constructed and loaded to the bottom of the antenna to improve the antenna gain performance and reduces the specific absorptivity (SAR). A three-layer human model (skin-fat-muscle) has been built in High Frequency Structure Simulator (HFSS) to analyse the influence of human tissue on the wearable antenna system. Combined with the practical application background, the radiation performance of the system under bending is also explored. The simulation results show that the application of EBG reflector can increase the antenna gain by about 4.77 dBi and the front-to-back ratio by 17 dB, reduce SAR by more than 95%, and the overall size of the system is only 60.3 × 60.3 × 3.5 mm 3 (0.49λ). The antenna system has the characteristics of simple structure, small size, high gain, and low SAR value, which is of certain reference value for the research on the wearable antenna.

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Section: Introductionmentioning

confidence: 99%

A Novel Compact Wearable Antenna Design for Ism Band

Yin¹,

Ye²,

Yu³

2021

PIER C

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“…However, to achieve a wide bandwidth, the suggested antenna size is 70 × 70 × 8 mm 3 32 while the proposed size of antenna in this article is 60 × 40 × 1.6 mm 3 and also this antenna can be used with metasurface or reflector to increase the gain. On the other hand, to provide lower frequency, the antenna size should be increased, as suggested in Reference 31.…”

Section: The Results and Discussionmentioning

confidence: 99%

Compact Yagi‐Uda slot antenna with metamaterial element for wide bandwidth wireless application

Soheilifar¹

2020

Int J RF Microw Comput Aided Eng

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In this article, an antenna with the combination of the microstrip slot and Yagi antenna is presented for wideband WLAN (wireless local area network) using CRLH (composite right/left‐handed) as a metamaterial (Left‐hand) element. The T‐shape feed line is investigated as a radiator section and modified for enhancing the bandwidth. The periodic elements are utilized as a novel type of the director to improve the bandwidth to more than 35% and increase the gain of the antenna to more than 80% where the three CRLH elements array are employed as the director of the Yagi antenna. The proposed antenna covers the 2.2 to 8 GHz (113% bandwidth) with a return loss of less than −6 dB (VSWR less than 3), which makes it suitable for wireless applications for covering different bands including WLAN, LTE (Long Term Evolution), and WiMAX with 47% miniaturization. The final antenna is simulated with CST microwave studio by the time‐domain method of FIT (Finite integration technique). The total size of the antenna is 60 mm × 40 mm × 1.6 mm, which is printed on an FR‐4 substrate, and the experimental results confirm the simulations.

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“…A 50 Ω SMA connector is directly attached to the CPW fed line using silver epoxy adhesive from MG chemicals 22 to avoid the soldering method, as heating affects the electrical properties of textile patch material. The fabricated pot shape textile antenna of overall dimension 78 × 78 mm 2 (0.61λ 0 × 0.61λ 0 ) with various parameters outline are listed in Table 1.…”

Section: Antenna and Phantom Designmentioning

confidence: 99%

“…The textile material is well suited for wearable antennas as it provides comfort and can easily be incorporated into clothing. The main attractive feature of textiles is a low dielectric constant that leads to an increase in the antenna impedance bandwidth and reduces the surface wave losses 2 . For textile antennas in the wireless body area network (WBAN), the most operational standards are IEEE 802.11 (WLAN), IEEE 802.15.1 (Bluetooth), IEEE 802.15.4 (ZigBee) and IEEE 802.15.6 (UWB) 3 .…”

Section: Introductionmentioning

confidence: 99%

“…The flexible triangular monopole patch antenna with a wideband response from 2.2 GHz to 10 GHz and a peak gain of 0.93 dB is reported 11 . In, 12 an artificial magnetic conductor (AMC) based textile antenna of 102 × 102 mm 2 with dual‐band response is explored. A windmill sail‐driven broadband antenna is built 13 with impedance bandwidth of 63.5% (5.7‐11.0 GHz) for WBAN applications.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Broadband coplanar waveguide‐fed stub loaded pot shape E‐textile antenna equipped with perfect electric conductor

Shah

Patel²

2021

Int J RF Microw Comput Aided Eng

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In this paper, a coplanar waveguide (CPW) fed pot‐shaped electronic textile (E‐textile) antenna aided by rectangular ring ground plane has been proposed. The textile patch in pot form is designed by cutting triangular slots on the non‐radiating edges of the rectangular patch, which yields a broadband of 6.45 GHz. The measured antenna impedance bandwidth is from 2.15 to 8.6 GHz with a peak gain of 10.7 dB on fabricated human tissue muscle equivalent phantom model. The proposed antenna exhibits a broadside radiation pattern from 2.15 GHz to less than 6 GHz and conical radiation pattern from 6 GHz to 8.6 GHz covering wide impedance matching bandwidth (S11 ≤ −10 dB) of 120% for dual‐mode off and on‐body communication. In CPW fed technique, the back radiation from the antenna to on body is reduced by using a perfect electric conductor. For wearable applications, considering human safety concern the specific absorption rate levels are maintained, that is less than 1.6 W/kg limit over the operating bandwidth according to IEEE C95.1‐1999 standard averaged over 1 g of tissue model.

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Wideband microstrip‐based wearable antenna backed with full ground plane

Cited by 14 publications

References 25 publications

A Novel Compact Wearable Antenna Design for Ism Band

A Novel Compact Wearable Antenna Design for Ism Band

Compact Yagi‐Uda slot antenna with metamaterial element for wide bandwidth wireless application

Broadband coplanar waveguide‐fed stub loaded pot shape E‐textile antenna equipped with perfect electric conductor

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