Thales Alenia Space multiple beam antennas for telecommunication satellites

Lafond, J.C.; Vourch, E.; Delepaux, F.; Lepeltier, Ph.; Bosshard, P.; Dubos, F.; Feat, Christian; Labourdette, C.; Navarre, G. L.; Bassaler, J M

doi:10.1109/eucap.2014.6901723

Cited by 22 publications

(6 citation statements)

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“…The selected frequency band of operation for the proposed radiating element is the Ku-Tx band (10.7 -12.75 GHz). This band is commonly used for multiple beam applications (MBA) for global coverage [3] and the antenna specifications are provided in Table I. These specifications are typical for the targeted missions [25,26].…”

Section: Design Principlesmentioning

confidence: 99%

“…These applications typically call for dual-polarization, low cross-polarization, rotationally symmetric radiation patterns and high powerhandling capability. Additional desirable features are high aperture efficiency, such that a given horn aperture can achieve increased gain [3], as well as reduced volume and 1 Manuscript received October 22, 2021; This work was supported by the European Union's Horizon 2020 research and innovation program under the Marie Skłodowska-Curie Grant Agreement REVOLVE No. 722840.…”

Section: Introductionmentioning

confidence: 99%

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Quad-Furcated Profiled Horn: The Next Generation Highly Efficient GEO Antenna in Additive Manufacturing

Stoumpos

Fraysse

Goussetis

et al. 2022

IEEE Open J. Antennas Propag.

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A novel compact and highly efficient dual-polarized horn-like antenna is presented. It exploits a radiating aperture that is fed by four smaller waveguides via a quad-furcated junction. The antenna also comprises the full feed network for the feed waveguides including an integrated 4-way orthomode power divider. Design principles are described in detail and illustrated by means of an example involving an antenna with aperture size of 2.6λ0×2.6λ0 (λ0 the wavelength at the central frequency of operation) intended primarily for Geostationary Orbit (GEO) satellites. The antenna feed was designed to comply with the Additive Manufacturing rules and exhibits aperture efficiency levels close to the theoretical maximum ones over the entire transmit Ku band (10.7 -12.75 GHz), while at the same time its profile is highly compact (6.4λ0). The measured results of a prototype 3D-printed in Selective Laser Melting (SLM) verified experimentally the calculated high aperture efficiency (over 90%). The total antenna feed attains return loss > 19 dB and maximum cross-polarization isolation (XPI) > 24 dB over a bandwidth of 18%. In light of the favorable electrical performances and compact size, the proposed solution constitutes an appealing alternative to profiled (or spline) horns for satellite antenna systems used either as reflector feeds or direct radiating arrays.

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Section: Design Principlesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Quad-Furcated Profiled Horn: The Next Generation Highly Efficient GEO Antenna in Additive Manufacturing

Stoumpos

Fraysse

Goussetis

et al. 2022

IEEE Open J. Antennas Propag.

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“…This terminal consists of three main units: optical, electronic, and laser units. Based on a 1550nm wavelength and an 8U volume, the system can guarantee a higher daily downlink capacity with a 2Gbps data transmission rate and a lower space-borne volume [28], [29]. 4) Mostcom Laser Terminals: The SOT terminal series launched by Mostcom can be used not only for intersatellite communication but also for space-toground communication.…”

Section: ) Commercial Lctsmentioning

confidence: 99%

A Survey on Laser Space Network: Terminals, Links, and Architectures

Lin

Liu

et al. 2022

IEEE Access

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Due to the high directionality and short wavelength of laser transmission in space, satellite laser communication can achieve high speed, wide bandwidth, high precision, and high security with no electromagnetic spectrum constraints. It has become a promising direction to construct the laser space network. Recently, relative products, on-orbit demonstrations, and researches have been conducted on laser space networks. Considering this network as a graph, this paper presents a comprehensive survey from nodes, edges, to architectures of this graph, corresponding to laser communication terminals, laser space links, and laser space network architectures. For each content, current achievements are introduced and future trends are analyzed accordingly. Through this survey paper, we aim to present the prospect to develop laser space networks in the next space generation and provide potential research directions to interested researchers or engineers.

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“…Despite its hardware simplicity, the drawback of this scheme is that several apertures are required to generate all the beams (typically four reflectors), although using a highly-oversized shaped reflector is also possible. On the other hand, multiple feed per beam (MFPB) systems [92]- [94] use small clusters of feeds to produce each spot. In this case, adjacent spots can be obtained by means of feed arrays that share some of their elements, so that two apertures can provide multi-spot coverage for Tx and Rx in Ka-band.…”

Section: State Of the Art On Multi-beam Satellite Antennas In Ka-bandmentioning

confidence: 99%

“…These solutions represent a significant reduction in weight and volume of the antenna farm, facilitating the accommodation of the antennas on board the satellite. However, the previous advantages are achieved at the expense of implementing complex and expensive beamforming networks [94]. Moreover, the performance of the MFPB solution is slightly inferior to that of the equivalent SFPB configuration with the same aperture size, and they are not suitable for providing non-regular spot lattices with different beam sizes [82].…”

Section: Mfpb Antenna Systemsmentioning

confidence: 99%

New advances on multi-frequency and multi-beam reflectarrays with application to satellite antennas in Ka-band

Nido¹,

Maria²

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Current high throughput satellites (HTS) in Ka-band are required to provide multiple spot beam coverage based on frequency and polarization reuse, both in transmission (Tx, 19.2-20.2 GHz) and reception (Rx, 29-30 GHz). A four colour scheme with two frequencies and two polarizations is normally used, in which adjacent spots must be generated in a different frequency and/or polarization. The design of multi-beam antennas for Ka-band HTS systems must cope with some challenging requirements: generation of a large number of beams (normally between 50 and 100), very small separation between adjacent spots (a typical value is 0.56º), low spillover, etc. To xiv

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Thales Alenia Space multiple beam antennas for telecommunication satellites

Cited by 22 publications

References 0 publications

Quad-Furcated Profiled Horn: The Next Generation Highly Efficient GEO Antenna in Additive Manufacturing

Quad-Furcated Profiled Horn: The Next Generation Highly Efficient GEO Antenna in Additive Manufacturing

A Survey on Laser Space Network: Terminals, Links, and Architectures

New advances on multi-frequency and multi-beam reflectarrays with application to satellite antennas in Ka-band

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