Flexible-Screen-Printed Antenna With Enhanced Bandwidth by Employing Defected Ground Structure

Abutarboush, Hattan F.; Li, Weiwei; Shamim, Atif

doi:10.1109/lawp.2020.3019462

Cited by 37 publications

(25 citation statements)

References 42 publications

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“…As listed in the Table 4, the resistivity values of the films were also measured under the flat and different times of folding, which changed little, and prove that the properties of the thin films fabricated by in situ self-metallization technique are stable under certain deformation. Screen printing [1,2,6] and inkjet printing [5,7,33,34] are the main techniques for applying antennas on PI films, and comparisons of fabrication methods of flexible antennas on polyimide substrates are listed in the Table 5. It can be seen from the table that whether the antenna fabricated by in situ self-metallization was flat, bent, or folded, the changes of the resonant frequency and bandwidth were relatively small, and the change of printed antennas were bigger than the proposed antenna, which had no folding test.…”

Section: Fatigue Testmentioning

confidence: 99%

“…The flexible antennas fed by coplanar waveguides (CPW) have attracted more and more attention for their advantages of convenient integration with other microwave components and easy conforming to the carrier [1][2][3][4]. For example, a flexible antenna fed by a CPW, which has the advantages of low profile, simple structure, small size, cheap production, and without vias or lumped element components was designed in ref 1.…”

Section: Introductionmentioning

confidence: 99%

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A Polyimide-Based Flexible Monopole Antenna Fed by a Coplanar Waveguide

Cang

Wang

2021

Electronics

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A 2.4 GHz flexible monopole antenna fed by a coplanar waveguide (CPW) was presented on polyimide (PI) as the dielectric substrate, which was fabricated by in situ self-metallization. The technology does not depend on expensive equipment or complex experimental environments, including hydrolysis, ion exchange, and reduction reaction. The measurement results show that the resonance frequency of the proposed antenna is 2.28 GHz, the bandwidth is 2.06–2.74 GHz, and the relative bandwidth is 28.33% under the flat state. The bending and folding test was also carried out. Whether it was flat, bent, or folded, the measured results met the requirements of the antenna. A fatigue test was carried out to illustrate that the prepared film has high mechanical flexibility, which expands the application field of antenna.

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Section: Fatigue Testmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Polyimide-Based Flexible Monopole Antenna Fed by a Coplanar Waveguide

Cang

Wang

2021

Electronics

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“…This also involves stricter requirements for the flatness, roughness, and surface quality of the substrate. Patch antennas have been manufactured using silver- or graphene-based materials via screen printing [ 11 , 12 ] or inkjet printing on a variety of substrates, including paper [ 13 ], polyimide [ 14 , 15 ], or glass [ 16 ]. Screen printing [ 17 , 18 , 19 ], inkjet printing [ 20 ], or a combination of these printing methods [ 21 ] can also be utilized to create wearable antennas in the current era.…”

Section: Introductionmentioning

confidence: 99%

Influence of Various Technologies on the Quality of Ultra-Wideband Antenna on a Polymeric Substrate

et al. 2022

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The design, simulation, realization, and measurement of an ultra-wideband (UWB) antenna on a polymeric substrate have been realized. The UWB antenna was prepared using conventional technology, such as copper etching; inkjet printing, which is regarded as a modern and progressive nano-technology; and polymer thick-film technology in the context of screen-printing technology. The thick-film technology-based UWB antenna has a bandwidth of 3.8 GHz, with a central frequency of 9 GHz, and a frequency range of 6.6 to 10.4 GHz. In addition to a comparison of the technologies described, the results show that the mesh of the screens has a significant impact on the quality of the UWB antenna when utilizing polymeric screen-printing pastes. Last but not least, the eco-friendly combination of polyimide substrate and graphene-based screen-printing paste is thoroughly detailed. From 5 to 9.42 GHz, the graphene-based UWB antenna achieved a bandwidth of 4.42 GHz. The designed and realized UWB antenna well exceeds the Federal Communications Commission’s (FCC) standards for UWB antenna definition. The modification of the energy surface of the polyimide substrate by plasma treatment is also explained in this paper, in addition to the many types of screen-printing pastes and technologies. According to the findings, plasma treatment improved the bandwidth of UWB antennas to 5.45 GHz, and the combination of plasma treatment with graphene provides a suitable replacement for traditional etching technologies. The characteristics of graphene-based pastes can also be altered by plasma treatment in terms of their usability on flexible substrates.

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“…[1][2][3][4][5][6] Flexible antennas have become a popular topic in recent years. 1,[7][8][9][10][11][12][13][14][15][16][17] In the design of flexible antennas, the frequency bands must be carefully designed, as they are prone to shift due to the impedance mismatch and effective capacitance change in bending. 8 Typically, the smaller is the radius of curvature, the larger is the change.…”

Section: Introductionmentioning

confidence: 99%

“…Most of these requirements can be met through additive manufacturing technology, such as inkjet or screen printing, on flexible substrates 1–6 . Flexible antennas have become a popular topic in recent years 1,7–17 . In the design of flexible antennas, the frequency bands must be carefully designed, as they are prone to shift due to the impedance mismatch and effective capacitance change in bending 8 .…”

Section: Introductionmentioning

confidence: 99%

Compact flexible and reconfigurable antenna using screen‐printed vanadium dioxide switch for wireless local area network and 5G electronic devices

Abutarboush

Vaseem

et al. 2022

Int J RF Mic Comp-Aid Eng

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This article proposes an additive manufacturing compact (30 × 36 × 0.125 mm3), flexible, and reconfigurable antenna with the ability to switch between wideband and dual‐band for wireless electronic devices used in the fifth generation (5G) systems and wireless local area network (WLAN) systems. The antenna consists of a folded branch line and an inverted L‐shape branch as radiator, and a slot on the ground plane. A vanadium dioxide (VO2) switch is screen‐printed on the folded branch line to reconfigure the operation frequencies. The antenna is optimized to operate for a wide bandwidth between 2.46 and 4.3 GHz when the VO2 switch is in the “OFF” state. The antenna exhibits dual narrow‐bands at frequencies of 2.4 and 5.2 GHz when the VO2 switch is heated up to 85°C or when a DC current of 50 mA is applied. Simulation and measurement show that the performance of the antenna remains relatively stable under different bending conditions in both the “ON” and “OFF” states of the switch. The operating frequencies can be independently controlled, and a guideline is discussed to design the antenna for other frequencies.

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Flexible-Screen-Printed Antenna With Enhanced Bandwidth by Employing Defected Ground Structure

Cited by 37 publications

References 42 publications

A Polyimide-Based Flexible Monopole Antenna Fed by a Coplanar Waveguide

A Polyimide-Based Flexible Monopole Antenna Fed by a Coplanar Waveguide

Influence of Various Technologies on the Quality of Ultra-Wideband Antenna on a Polymeric Substrate

Compact flexible and reconfigurable antenna using screen‐printed vanadium dioxide switch for wireless local area network and 5G electronic devices

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