Design of a Wideband Spring Textile Antenna for Wearable 5G and IoT Applications Using Characteristic Mode Analysis

Elias, Bashar Qas; Soh, Ping Jack

doi:10.2528/pierm22062909

Cited by 11 publications

(1 citation statement)

References 20 publications

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“…For further verification of the proposed method, an additional flexible patch Antenna 2, also referred to as "spring antenna" is used. This antenna featured a compact dimension of 32 × 42 × 3 mm 3 (0.38 λg × 0.5 λg × 0.036 λg) and operated from 2.99 GHz to 5.57 GHz with a bandwidth of 73.8% [20]. Figure 10 illustrates the topology of Antenna 2 designed on a felt textile substrate with a thickness (h) of 3 mm, a dielectric constant of approximately 1.3, and a loss tangent of 0.044.…”

Section: Antenna 2: Topologymentioning

confidence: 99%

Resonance Analysis and Gain Estimation Using CMA-Based Even Mode Combination Method for Flexible Wideband Antennas

Elias¹,

Soh

2023

Sensors

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This work presents an efficient design and optimization method based on characteristic mode analysis (CMA) to predict the resonance and gain of wideband antennas made from flexible materials. Known as the even mode combination (EMC) method based on CMA, the forward gain is estimated based on the principle of summing the electric field magnitudes of the first even dominant modes of the antenna. To demonstrate its effectiveness, two compact, flexible planar monopole antennas designed on different materials and two different feeding methods are presented and analyzed. The first planar monopole is designed on Kapton polyimide substrate and fed using a coplanar waveguide to operate from 2 to 5.27 GHz (measured). On the other hand, the second antenna is designed on felt textile and fed using a microstrip line to operate from about 2.99 to 5.57 GHz (measured). Their frequencies are selected to ensure their relevance in operating across several important wireless frequency bands, such as 2.45 GHz, 3.6 GHz, 5.5 GHz, and 5.8 GHz. On the other hand, these antennas are also designed to enable competitive bandwidth and compactness relative to the recent literature. Comparison of the optimized gains and other performance parameters of both structures are in agreement with the optimized results from full wave simulations, which process is less resource-efficient and more iterative.

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Section: Antenna 2: Topologymentioning

confidence: 99%

Resonance Analysis and Gain Estimation Using CMA-Based Even Mode Combination Method for Flexible Wideband Antennas

Elias¹,

Soh

2023

Sensors

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Flexible Textile Antennas for 5G Using Eco‐Friendly Water‐Based Solution and Scalable Printing Processes

Tavares,

Loss,

Pinho

et al. 2024

Adv Materials Technologies

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Flexible textile antennas are important for wireless communication within the expansion of 5G and the Internet of Things (IoT), as it allows for their integration in daily life objects. However, achieving these functionalities in textiles is challenging because of limitations in the electronic performance, flexibility with scalable fabrication process. This paper presents two flexible textile antennas for wearable and non‐ wearable devices compatible with 5G technology created by printing highly conductive silver nanoparticle inks. Two textile substrates are explored, as the dielectric component, a 3D polyester, and a natural origin fabric, burel. The processes used are cost‐effective and scalable, with the antennas designed to operate at 3–3.5 GHz, maintaining their return loss performance even under bending deformation and washing cycles. By transferring the optimized devices into clothes and wall covering, a detailed analysis with experimental measurements of the textile‐based antenna for different operation scenarios is introduced. The work highlights the suitability of these antennas for wearable applications and their alignment with green wireless technologies, contributing to the advancement of sustainable wireless communication systems.

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Development of wideband CPW‐fed microstrip patch antenna on textile substrate

Somasundaram

Rajamanickam

Alex

2023

Micro & Optical Tech Letters

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A wideband flexible coplanar microstrip patch (CPW) antenna is developed on a felt substrate to radiate from 1.4 to 3 GHz. The dimension of the antenna is 0.37λ × 0.37λ × 0.007λ, developed on felt, which is a flexible textile material with a 1.38 dielectric constant. The patch and ground are printed on the same side of the substrate, where a semi-circular slot is etched on the patch, and symmetric slots are etched on the ground to achieve wide bandwidth (73%).CPW feed impedance is matched with the connector impedance using the modified feed line. The felt antenna has a measured peak gain of 4.7 dB at 2.45 GHz. Moreover, the performance of the textile antenna under different bending conditions are experimentally carried out. The antenna bandwidth is reduced due to a decrease in bending angle, but still, the antenna operates at the required bandwidth of 1.8-2.9 GHz (upto 80 mm radius).

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Design of a Wideband Spring Textile Antenna for Wearable 5G and IoT Applications Using Characteristic Mode Analysis

Cited by 11 publications

References 20 publications

Resonance Analysis and Gain Estimation Using CMA-Based Even Mode Combination Method for Flexible Wideband Antennas

Resonance Analysis and Gain Estimation Using CMA-Based Even Mode Combination Method for Flexible Wideband Antennas

Flexible Textile Antennas for 5G Using Eco‐Friendly Water‐Based Solution and Scalable Printing Processes

Development of wideband CPW‐fed microstrip patch antenna on textile substrate

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