Conformal Design of a High-Performance Antenna for Energy-Autonomous UWB Communication

Agarwal, Shobit; Masotti, Diego; Nikolaou, Symeon; Costanzo, Alessandra

doi:10.3390/s21175939

Cited by 7 publications

(5 citation statements)

References 26 publications

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“…The low-dispersive behavior of the proposed antenna for both the near-and far-field behaviors is a very important feature, typically offered by antennas based on the self-similarity principle [23]. According to this, such an antenna always behaves in the same way (from the radiation and impedance points of view) because the active zone responsible for radiation is identical, compared to the wavelength, in all the frequency ranges, but these antennas suffer from large footprint [24]. The antenna design presented in this work maintains almost constant radiation patterns and impedance response throughout the frequency band, despite its compact layout.…”

Section: Fabrication and Validationmentioning

confidence: 99%

See 1 more Smart Citation

A Small-scaled Super Wideband Circular Ring Fractal Antenna with High BDR for SHF Applications

Agarwal¹,

Rafique²

2023

PIER C

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This paper presents a miniaturized super wideband (SWB) antenna that has a high bandwidth dimension ratio (BDR). It is intended for the use in microwave and millimeter-wave (mmWave) frequency applications. The designed antenna ensures low-dispersive behavior for both near-and far-field performance. The radiating element is composed of three circular rings that are interconnected by conical-shaped metal strips which lead to a fractal geometry. The design incorporates a partial ground plane and two parasitic patches located at the bottom and top sides of the substrate, respectively. The parasitic strips serve the purpose of enhancing impedance matching at lower frequency bands and reducing spurious radiation that may arise from the feed line. The proposed antenna has an overall size of 20 × 20 mm 2 and exhibits an impedance bandwidth (IBW) of ≈ 57 GHz, spanning from 2.86 to beyond 60 GHz with a fractional bandwidth (FBW) of 181.8%, a ratio bandwidth (RBW) of 21 : 1, and a BDR of 5036. Furthermore, the peak gain value is observed to be ≈ 11 dBi, while the average gain within the operating range is ≈ 6 dBi. The proposed antenna design was also fabricated and tested, and experimental results show a reasonable agreement with the simulated data. This makes the antenna extremely suitable for energy harvesting applications in future fifth-generation (5G) and sixth-generation (6G) networks.

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Section: Fabrication and Validationmentioning

confidence: 99%

“…The antenna design presented in this work maintains almost constant radiation patterns and impedance response throughout the frequency band, despite its compact layout. As a comparison, an Archimedean spiral operating at 2 GHz should have a radius greater than 20 mm [24].…”

Section: Fabrication and Validationmentioning

confidence: 99%

A Small-scaled Super Wideband Circular Ring Fractal Antenna with High BDR for SHF Applications

Agarwal¹,

Rafique²

2023

PIER C

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“…This technology is applied in various aspects of aerospace, military and civil applications [1][2][3]. Considering that the array accuracy and electrical performance are affected by antenna deformation [4][5][6], the shape-sensing technique is significant for antenna performance. The shape-sensing method can currently be divided into two categories [7,8]: one is non-contact measurement and the other is contact measurement.…”

Section: Introductionmentioning

confidence: 99%

Coarse and Fine Two-Stage Calibration Method for Enhancing the Accuracy of Inverse Finite Element Method

Zhao

et al. 2023

Sensors

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The inverse finite element method (iFEM) is a novel method for reconstructing the full-field displacement of structures by discrete measurement strain. In practical engineering applications, the accuracy of iFEM is reduced due to the positional offset of strain sensors during installation and errors in structural installation. Therefore, a coarse and fine two-stage calibration (CFTSC) method is proposed to enhance the accuracy of the reconstruction of structures. Firstly, the coarse calibration is based on a single-objective particle swarm optimization algorithm (SOPSO) to optimize the displacement–strain transformation matrix related to the sensor position. Secondly, as selecting different training data can affect the training effect of self-constructed fuzzy networks (SCFN), this paper proposes to screen the appropriate training data based on residual analysis. Finally, the experiments of the wing-integrated antenna structure verify the efficiency of the method on the reconstruction accuracy of the structural body displacement field.

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“…Nevertheless, it increases the structural complexity, which results in fabrication issues [ 13 ]. Recent work shows the utilization of several types of elastic materials for the design of conformal antennas that are not limited to textile materials, including jeans, conductive textile–polymer composites, and polydimethylsiloxane polymer [ 14 , 15 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

A Frequency-Reconfigurable Filtenna for GSM, 4G-LTE, ISM, and 5G Sub-6 GHz Band Applications

Awan

Hussain

Kim

et al. 2022

Sensors

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This paper presents the design and realization of a flexible and frequency-reconfigurable antenna with harmonic suppression for multiple wireless applications. The antenna structure is derived from a quarter-wave monopole by etching slots. Afterward, the high-order unwanted harmonics are eliminated by adding a filtering stub to the feedline to avoid signal interference. Lastly, frequency reconfigurability is achieved using pin diodes by connecting and disconnecting the stubs and the rectangular patch. The antenna is fabricated on the commercially available thin (0.254 mm) conformal substrate of Rogers RT5880. The proposed antenna resonates (|S11| < –10 dB) at five different reconfigurable bands of 3.5 GHz (3.17–3.82 GHz), 2.45 GHz (2.27–2.64 GHz), 2.1 GHz (2.02–2.29 GHz), 1.9 GHz (1.81–2.05 GHz), and 1.8 GHz (1.66–1.93 GHz), which are globally used for 5G sub-6 GHz in industrial, medical, and scientific (ISM) bands, 4G long-term evolution (LTE) bands, and global system for mobile communication (GSM) bands. The simulated and measured results show that the antenna offers excellent performance in terms of good impedance matching with controllable resonant bands, high gain (>2 dBi), stable radiation patterns, and efficiency (>87%). Moreover, the conformal analysis shows that the antenna retains its performance both in flat and bending conditions, making it suitable for flexible electronics. In addition, the antenna is compared with the state-of-the-art works for similar applications to show its potential for the targeted band spectrums.

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Conformal Design of a High-Performance Antenna for Energy-Autonomous UWB Communication

Cited by 7 publications

References 26 publications

A Small-scaled Super Wideband Circular Ring Fractal Antenna with High BDR for SHF Applications

A Small-scaled Super Wideband Circular Ring Fractal Antenna with High BDR for SHF Applications

Coarse and Fine Two-Stage Calibration Method for Enhancing the Accuracy of Inverse Finite Element Method

A Frequency-Reconfigurable Filtenna for GSM, 4G-LTE, ISM, and 5G Sub-6 GHz Band Applications

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