Bandwidth enhancement using Polymeric Grid Array Antenna for millimeter-wave application

Muhamad, Wan Asilah Wan; Ngah, Razali; Jamlos, Mohd Faizal; Soh, Ping Jack; Ali, Mohd Tarmizi

doi:10.1007/s00339-016-0689-0

Cited by 3 publications

(2 citation statements)

References 18 publications

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“…Figure 6(d) showed the relationship between antenna radiation efficiency and frequency under different bending angles. The antenna efficiency is 71.3% without bending, which was close to the antenna efficiency reported in literatures [40,41].…”

Section: Application Of Ffsfr Antenna In Finger Motion Detectionsupporting

confidence: 88%

Flexible force sensitive frequency reconfigurable antenna base on stretchable conductive fabric

Shao¹,

Tang²,

Yang³

et al. 2022

J. Phys. D: Appl. Phys.

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With the development of wireless technology and flexible electronics, flexible frequency reconfigurable antennas have been directly used as sensors to detect mechanical signals. As an important frequency reconfigurable antenna, microstrip antenna has been widely studied in the field of flexible and flexible electronics in recent years. However, the stretchability of microstrip antennas usually comes at the cost of reducing the conductivity of the radiated conductor. Here, we report a flexible force sensitive frequency reconfigurable microstrip antenna, which fabricated by silver fiber conductive fabric with a double-wire braided structure. In order to increase the detection of pressure, an elastic dielectric layer with a microhemispheric array was introduced into the microstrip antenna to extend the frequency band width of the reconfigurable antenna. The relative frequency of the antenna varied from 0~-12.9%, and the sensing sensitivity was -1.9 kPa-1. As potential applications, we demonstrate the use of a flexible frequency reconfigurable antenna base on stretchable conductive fabric as a strain sensor capable of measuring bending angle and movements of a human finger. The change in the resonance frequency with the externally applied tensile strain in this antenna design has a sensitivity of 3.448, manifesting a 4.19- and a 13.79-fold increase of sensitivity when compared to those in previous reports that used arched or both-planes serpentine rectangular microstrip antenna. This is of great significance for the application of wearable antenna in wireless mechanical sensing technology.

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Section: Application Of Ffsfr Antenna In Finger Motion Detectionsupporting

confidence: 88%

Flexible force sensitive frequency reconfigurable antenna base on stretchable conductive fabric

Shao¹,

Tang²,

Yang³

et al. 2022

J. Phys. D: Appl. Phys.

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“…Several studies investigating bandwidth enhancement of microstrip antenna have been carried out by [6,7]. The proposed methods include defected ground structure (DGS) [6], electromagnetic band gap (EBG) [7,8], parasitic patch [9,10], metamaterial [11], metamaterial bilayer substrates (MBS) [12], monopole slot [13], T-shaped slot [14], cylindrical dielectric slot (CDS) [15], polymeric grid [16], spiral split ring (SSR) [17], Jerusalem cross-shaped [18], and characteristic modes [19]. The DGS method was proposed by Marotkar [6], it is realized by etching the ground plane so the current distribution in the ground plane is disturbed.…”

Section: Introductionmentioning

confidence: 99%

Bandwidth enhancement and miniaturization of circular-shaped microstrip antenna based on beleved half-cut structure for MIMO 2x2 application

Praptodiyono¹,

Herudin²,

Aribowo³

et al. 2019

IJECE

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In this paper, circular-shaped microstrip antenna was simulated, fabricated, and measured accordingly. As the novelty, to enhance bandwidth and reduce antenna size, beleved half-cut microstrip structure is proposed. Further, this proposed antenna structure will be applied to multiple input multiple output (MIMO) antenna 2´2. Therefore, this research was investigated conventional circular shape antenna (CCSA), circular shaped beleved antenna (CSBA), and MIMO circular shaped beleved antenna (MIMO-CBSA) as Model 1, Model 2, and Model 3, respectively. An FR4 substrate with er= 4.4, thickness h=1.6 mm, and tan d=0.0265 was used. The simulation has been conducted using Advanced Design System (ADS). The antenna CCSA/CSBA/ MIMO-CBSA achieve 1.831GHz/2.265 GHz/2.256 GHz, -15.13dB/-17.37dB/-17.25 dB, 1.42/1.31/1.33, and 1.474/2.332/2.322 for center frequency, reflection coefficient, VSWR, and bandwidth, respectively. This antenna has a size 63x90 mm and 51.5x90 mm for CCSA (Model 1) and CSBA (Model 2), respectively. After the structure of MIMO 2´2 was applied, the size of antenna MIMO-CBSA (Model 3) became 180 mm x 180 mm with a mutual coupling (S21)=-26.18 dB and mutual coupling (S31)=-26.41 dB. The result showed that proposed antenna CSBA (Model 2) has wider-bandwidth of 58,2% and smaller-size of 18.2%. Furthermore, after CSBA (Model 2) structure was applied to MIMO 2´2 (Model 3) and the MIMO antenna obtain good mutual coupling (<-15dB). Moreover, the measured results are good agreement with the simulated results. In conclusion, all of these advantages make it particularly valuable in multistandard antenna applications design such as GSM950, WCDMA1800, LTE2300, and WLAN2400.

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Specific Absorption Rate Reduction of CPW-Fed Metamaterial-Inspired Antenna for 5G Technology

Elhabchi,

Bour

2024

Russ Phys J

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Bandwidth enhancement using Polymeric Grid Array Antenna for millimeter-wave application

Cited by 3 publications

References 18 publications

Flexible force sensitive frequency reconfigurable antenna base on stretchable conductive fabric

Flexible force sensitive frequency reconfigurable antenna base on stretchable conductive fabric

Bandwidth enhancement and miniaturization of circular-shaped microstrip antenna based on beleved half-cut structure for MIMO 2x2 application

Specific Absorption Rate Reduction of CPW-Fed Metamaterial-Inspired Antenna for 5G Technology

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