Wideband Circularly Polarized Antenna With In-Lens Polarizer for High-Speed Communications

Campo, Marta Arias; Carluccio, Giorgio; Blanco, Darwin; Litschke, O.; Bruni, S.; Llombart, Nuria

doi:10.1109/tap.2020.3008638

Cited by 23 publications

(8 citation statements)

References 28 publications

(57 reference statements)

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“…Polarization manipulation is indeed a challenge in fully metallic parallel plate waveguide (PPW) beamformers due to the supported fundamental modes. This is less challenging in 3D lenses since the polarization can be readily implemented in the feed or before the lens [33], [34]. The typical solution in PPW beamformers is to have an array of polarizing unit cells at some distance away from the beamformer.…”

Section: Introductionmentioning

confidence: 99%

Conformal Parallel Plate Waveguide Polarizer Integrated in a Geodesic Lens Antenna

Vidarsson

Zetterström

Algaba‐Brazález

et al. 2022

IEEE Trans. Antennas Propagat.

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Here, we propose a low profile polarizing technique integrated in a parallel plate waveguide configuration, compatible with fully metallic geodesic lens antennas. The geodesic shape of the antenna is chosen to resemble the operation of a Luneburg lens. The lens is fed with 11 waveguide ports with 10°separation producing 11 switchable beams in an angular range of ±50°. Two metallic polarizing screens are loaded into the aperture of the antenna to rotate the electric field from vertical linear polarization, which is the polarization of the TEM (transverse electromagnetic) mode supported in the lens, to +45°linear polarization. Since the polarizing unit cells are integrated into the aperture of the antenna, the final design is compact. Additionally, the size of the polarizing unit cells is about 0.55λ at the central frequency of operation making the antenna suitable to produce an array formed of stacked lenses. A prototype of the antenna in the Ka-band was manufactured and tested, verifying the performance obtained in simulations.

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Section: Introductionmentioning

confidence: 99%

Conformal Parallel Plate Waveguide Polarizer Integrated in a Geodesic Lens Antenna

Vidarsson

Zetterström

Algaba‐Brazález

et al. 2022

IEEE Trans. Antennas Propagat.

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“…The key to achieving ultra-high gain with good performance is the selection of a low-loss beamforming architecture. Classical dielectric lenses [1], quasi-optical systems [2] and waveguide-based corporate-feed slot arrays [3] have been recently proposed for sub-THz applications. However, dielectric lens antennas are bulky and with limited beamsteering capability.…”

Section: Introductionmentioning

confidence: 99%

Ultra-high Gain Transmitarray Antenna for Wireless Backhauling at 280 GHz

Koutsos

Manzillo

Clemente

et al. 2022

2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz)

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HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

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“…Therefore, it is crucial to develop high-gain, efficient and wideband antennas using reliable and affordable technologies. However, the current sub-THz antenna solutions rely on expensive, highresolution technologies, such as low temperature co-fired ceramic (LTCC) and silicon-on-Insulator (SOI) micromachining [2]- [5].…”

Section: Introductionmentioning

confidence: 99%

Wideband High-Gain Transmitarray Antenna for Point-to-Point Communications at 300 GHz

Koutsos

Manzillo

Clemente

et al. 2022

2021 51st European Microwave Conference (EuMC)

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The design and characterization of a 60×60element high-gain, wideband transmitarray antenna at 300 GHz are presented. A numerical model is used to accurately design the 8 phase-shifting anisotropic unit-cells of the array (3-bit phase quantization). The planar lens comprises only three metal layers and no metallized vias. It is fabricated using a low-cost, standard printed circuit board technology. A 20-dBi horn is used as a feed. The experimental characterization demonstrates a peak gain of 37.0 dBi with a maximum aperture efficiency of 48.6% and a 1-dB gain bandwidth of 19.0%. These features, combined with the cost-efficient fabrication process, make the prototype a very attractive candidate for point-to-point communications in the 300-GHz band.

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Wideband Circularly Polarized Antenna With In-Lens Polarizer for High-Speed Communications

Cited by 23 publications

References 28 publications

Conformal Parallel Plate Waveguide Polarizer Integrated in a Geodesic Lens Antenna

Conformal Parallel Plate Waveguide Polarizer Integrated in a Geodesic Lens Antenna

Ultra-high Gain Transmitarray Antenna for Wireless Backhauling at 280 GHz

Wideband High-Gain Transmitarray Antenna for Point-to-Point Communications at 300 GHz

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