Performance Evaluation of a Star-Shaped Patch Antenna on Polyimide Film Under Various Bending Conditions

Seman, Fauziahanim Che; Ramadhan, Faisal; Ishak, Nurul Syafeeqa; Yuwono, Rudy; Abidin, Zuhairiah Zainal; Dahlan, Samsul Haimi; Shah, Shaharil Modd; Ashyap, and Adel Yahya Isa

doi:10.2528/pierl19022102

Cited by 23 publications

(13 citation statements)

References 11 publications

(12 reference statements)

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“…A multi-layer model tissue is developed to mimic the human body. The chest is mimicked by a cuboid of 150 ×150 ×40 mm 3 [24], [25] whereas the arm was mimicked by a cylindrical with a diameter of 80 mm and a length of 150 mm as seen in Fig.17 [20]. Each model had four layers with a typical thickness, permittivity, density, conductivity, and mass as tabulated in Table 1 [20], [24].…”

Section: Antenna Performance On Bodymentioning

confidence: 99%

Robust and Efficient Integrated Antenna With EBG-DGS Enabled Wide Bandwidth for Wearable Medical Device Applications

et al. 2020

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A compact wearable symmetrical e-slots antenna operated at 2.4 GHz was proposed for Medical Body Area Network applications. The design was printed onto a highly flexible fabric material. The final design topology was achieved by the integration of symmetrical e-slots antenna with an Electromagnetic Band-Gap (EBG) and Defected Ground Structure (DGS). The use of EBG was to isolate the body and antenna from each other whereas the DGS widened the bandwidth. This combination forms a novel and compact structure that broadens bandwidth. This broadened bandwidth makes the structure robust to deformation and loading in the human body. The design achieved a measured impedance bandwidth of 32.08 %, a gain of 6.45 dBi, a Front to Back Ration (FBR) of 15.8 dB, an efficiency of 72.3% and a SAR reduction of more than 90%. Hence, the integration of symmetrical e-slots antenna with EBG and etched DGS is a promising candidate for body-worn devices.

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Section: Antenna Performance On Bodymentioning

confidence: 99%

Robust and Efficient Integrated Antenna With EBG-DGS Enabled Wide Bandwidth for Wearable Medical Device Applications

et al. 2020

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“…Several flexible antennas were made on numerous flexible substrates such as textile [86,87], paper [88], and thin-film [89,90]. Accordingly, a star patch Kapton Polyimide Film based antenna was designed by Seman et al [91], which was able to function at (2.45) GHz. The size of the antenna was specified by (75×50) mm 2 and tested in different bending scenarios (see Figure 14) knowing that the results had proven that the performance of the antenna is not compromised.…”

Section: Bending Scenarios In Wearable Antennasmentioning

confidence: 99%

“…Section 2 investigated the performance of textile wearable antennas with respect to their size, substrates, and frequency bands [29, 37, 42-44, 46, 57, 59, 60]. Furthermore, the bending scenarios of antennas in several radiuses and the impact of bending on the efficiency were addressed in Section 3 [59,67,70,71,73,79,85,[91][92][93]. On the other hand, Section 4 exposed the high conductive substrate materials and discussed their effect on the design and fabrication of different wearable antennas [111, 115-119, 124, 125, 132].…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Wearable Antenna Technologies: A Review

Mahmood¹,

Aris²,

Saeidi³

et al. 2020

PIER B

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Wearable antennas have received a great deal of popularity in recent years owing to their enticing characteristics and opportunities to realize lightweight, compact, low-cost, and versatile wireless communications and environments. These antennas must be conformal, and they must be built using lightweight materials and constructed in a low-profile configuration when mounted on various areas of the human body. These antennas ought to be able to function close to the human body with limited deterioration. These criteria render the layout of wearable antennas demanding, particularly when considering factors such as investigating the usability of textile substrates, high conductive materials during fabrication processes, and the effect of body binding scenarios on the performance of the design. Although there are minor differences in magnitude based on the implementations, several of these problems occur in the body-worn deployment sense. This study addresses the numerous problems and obstacles in the production of wearable antennas, their variety of materials, and the techniques of manufacturing alongside with bending scheme. This is accompanied by a summary of creative features and their respective approaches to address these problems recently raised by work in this area by the science community.

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“…The wearable antennas, which are part of our daily clothes, are utilized for communication purposes such as health monitoring, sports, tracking, military, public safety, firefighters and mobile computing. Besides that, a wearable antenna considers one of the most vital parts of wearable electronic devices [1][2][3][4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

A wearable antenna based on fabric materials with circular polarization for Body-centric wireless communications

Ashyap

Abidin

Dahlan

et al. 2020

IJEECS

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<p>A compact and simple structure antenna for wearable application at 2.4 GHz is presented and studied. The felt fabric material is used in this paper due to its suitable thickness and dielectric constant. This material provides high flexibility which can be easily worn on a body and incorporated into our daily clothes. In view of the fact that the design will work on a moving person, therefore a circularly polarized antenna is desired to optimize the off-body communication link. The Cicular Polarization (CP) is achieved by introducing truncated corners on the patch. The antenna size is 60 × 60 × 2 mm<sup>3</sup>. The Axial Ratio (AR), the Front to Back Ratio (FRB) and the realized gain are 0.96 dB, 10.5 dB, and 4.62 dB, respectively indicating a good performance of the antenna at the desired frequency. Furthermore, the antenna was investigated when operating near the body. The obtained result shows that the design has performance similar to the case of free space. This is due to the present of the full ground plane that acts as a shielding between the antenna and body. Finally, the Specific Absorption Rate (SAR) is carried out and showed that the antenna has a level less than the limits fixed by the FCC standard. Therefore, the antenna could be useful for wearable applications.</p>

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Performance Evaluation of a Star-Shaped Patch Antenna on Polyimide Film Under Various Bending Conditions

Cited by 23 publications

References 11 publications

Robust and Efficient Integrated Antenna With EBG-DGS Enabled Wide Bandwidth for Wearable Medical Device Applications

Robust and Efficient Integrated Antenna With EBG-DGS Enabled Wide Bandwidth for Wearable Medical Device Applications

Recent Advances in Wearable Antenna Technologies: A Review

A wearable antenna based on fabric materials with circular polarization for Body-centric wireless communications

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