On the Antenna Position to Improve the Radiation Pattern Characterization

Mézières, Nicolas; Fuchs, Benjamin; Coq, Laurent Le; Lerat, Jean-Marie; Contreres, Romain; Fur, Gwenn Le

doi:10.1109/tap.2021.3060894

Cited by 5 publications

(3 citation statements)

References 18 publications

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“…14. The measurement of directivity of the antenna is computed using spherical harmonic expansion tool [21][22][23], which is applied to reconstruct the 3D radiation pattern at any point as it gives access to an exact interpolation of the complex EM electrical field. The measured 2D-radiation pattern of the proposed antenna for both co-polarization (RHCP) and crosspolarization (LHCP) at different frequencies are presented in Fig.…”

Section: Measurement and Resultsmentioning

confidence: 99%

A Circularly Polarized Sub-Terahertz Antenna With Low-Profile and High-Gain for 6G Wireless Communication Systems

Aqlan¹,

Himdi

Vettikalladi

et al. 2021

IEEE Access

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A low-profile high-gain fully-metallic circularly polarized (CP) Fabry-Perot cavity (FPC) antenna using laser cutting technology at 300 GHz is presented. The CP-FPC antenna consists of seven metallic layers arranged from the bottom to the top: a ground layer, an integrated stepped horn element (three layers), a coupling slots layer, a cavity layer, and an aperture-frequency selective surface (FSS) layer. The high gain and self-generation of circular polarization are made by using this FSS layer by introducing periodic hexagonal -shaped aperture in a thin metallic layer. The aperture-FSS layer is used to excite two orthogonal modes of equal in magnitude and in phase quadrature, thus obtaining the RHCP radiation. The proposed CP-FPC antenna structure achieves a measured peak RHCP gain of 16.5 dBic at 292 GHz. The antenna achieves a measured impedance bandwidth of 281-305 GHz for the reflection coefficient less than -10 dB. The axial ratio (AR) bandwidth AR ≤ 3 dB is 5.12 GHz from 292.8 to 297.92 GHz. The fabricated CP-FPC antenna uses a low-cost laser cutting technique with a low-profile and an area of 2.6 mm× 2.6 mm× 1.24 mm. The experimental results confirm a good agreement between the simulation and the measurements.

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Section: Measurement and Resultsmentioning

confidence: 99%

A Circularly Polarized Sub-Terahertz Antenna With Low-Profile and High-Gain for 6G Wireless Communication Systems

Aqlan¹,

Himdi

Vettikalladi

et al. 2021

IEEE Access

Self Cite

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“…For conductivity in the proposed antennas, an electrotextile material known as Zelt is employed. The three-dimensions (3D) description of antenna radiating architectures, as proposed by [35], is acknowledged to be more difficult, the theoretical requirement often leads to extended measurement times, especially for antennas situated on electrically massive objects. Precisely aligning the antenna with the measuring device has potential to enhance the low frequency section of the antenna.…”

Section: Literature Reviewmentioning

confidence: 99%

Development of wearable textile patch antenna 2.43 GHz for biomedical applications

2024

IJATEE

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Wearable technology combines electronic and computer technologies into clothing or devices for daily wear. Wearable devices include spectacles, watches, jewellery, caps, and textiles. These gadgets can do functions like smartphones and computers, as well as offer sensory, tracking, and scanning capabilities. This is a significant advancement in pervasive computing, allowing access to information from any location [1,2]. Textile architectures feature inbuilt antennas have proven to be a vital feature of wearable device, allowing garment-based wireless communication [3].

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“…The question of sampling the field radiated by a source or the one scattered by an object is a classical research topic of the electromagnetics literature [1][2][3][4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Optimal Field Sampling of Arc Sources via Asymptotic Study of the Radiation Operator

et al. 2022

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In this paper, the question of how to efficiently sample the field radiated by a circumference arc source is addressed. Classical sampling strategies require the acquisition of a redundant number of field measurements that can make the acquisition time prohibitive. For such reason, the paper aims at finding the minimum number of basis functions representing the radiated field with good accuracy and at providing an interpolation formula of the radiated field that exploits a non-redundant number of field samples. To achieve the first task, the number of relevant singular values of the radiation operator is computed by exploiting a weighted adjoint operator. In particular, the kernel of the related eigenvalue problem is first evaluated asymptotically; then, a warping transformation and a proper choice of the weight function are employed to recast such a kernel as a convolution and bandlimited function of sinc type. Finally, the number of significant singular values of the radiation operator is found by invoking the Slepian–Pollak results. The second task is achieved by exploiting a Shannon sampling expansion of the reduced field. The analysis is developed for both the far and the near fields radiated by a 2D scalar arc source observed on a circumference arc.

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On the Antenna Position to Improve the Radiation Pattern Characterization

Cited by 5 publications

References 18 publications

A Circularly Polarized Sub-Terahertz Antenna With Low-Profile and High-Gain for 6G Wireless Communication Systems

A Circularly Polarized Sub-Terahertz Antenna With Low-Profile and High-Gain for 6G Wireless Communication Systems

Development of wearable textile patch antenna 2.43 GHz for biomedical applications

Optimal Field Sampling of Arc Sources via Asymptotic Study of the Radiation Operator

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