Multibeam antennas for very high throughput satellites in Europe: Technologies and trends

Palacin, Baptiste; Fonseca, Nelson J. G.; Romier, Maxime; Contreres, Romain; Angevain, Jean-Christophe; Toso, Giovanni; Mangenot, C.

doi:10.23919/eucap.2017.7928493

Cited by 51 publications

(29 citation statements)

References 7 publications

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“…The increasing demand for broadband communication systems leads to the deployment of a large number of satellites, operating at very high frequencies and proposing multiple beam coverage to reuse efficiently the available bandwidth [1], [2]. Most of the antenna systems currently proposed are based on a complex design approach, explaining some efforts needed for the development of low-cost solutions, while maintaining stringent RF constraints.…”

Section: Introductionmentioning

confidence: 99%

Shaped Continuous Parallel Plate Delay Lens With Enhanced Scanning Performance

Doucet

Fonseca

Girard

et al. 2019

IEEE Trans. Antennas Propagat.

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Shaped continuous parallel plate waveguide delay lenses are proposed in this paper. The previous configurations introduced by the authors displayed a residual side lobe imbalance, showing the limitations of elliptical delay lens profiles, derived from a starting bifocal constrained lens. Polynomial profiles are proposed here as a way to enhance the scanning performance and the pattern shape. Optimized configurations demonstrate a reduction of the phase aberration levels over a large scanning range ([-30°, 30°]). The associated radiation patterns demonstrate lower and more balanced first side lobe levels (≅-18 dB), as compared to the previous elliptical approach (≅-13.2 dB). A validation has been proposed through the manufacturing and test of a prototype over the down-link Ka band ([27.5-31] GHz). Excellent radiation performance (HPBW, SLL) has been obtained experimentally over a wide angular range ([-31.5°, 31.5°]), including low scanning loss and high radiation stability over the entire frequency range. High radiation efficiencies are demonstrated with this fully metallic design, particularly suitable for space applications. The mechanical simplicity offered by the concept is also quite attractive for low-cost multi-beam platforms.

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Section: Introductionmentioning

confidence: 99%

Shaped Continuous Parallel Plate Delay Lens With Enhanced Scanning Performance

Doucet

Fonseca

Girard

et al. 2019

IEEE Trans. Antennas Propagat.

Self Cite

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show abstract

“…SFPB MBAs provide high gain and low side-lobe level thereby leading to an advantageous carrier to interference ratio. On the other hand, the SFPB architecture typically requires 3 or 4 reflectors to achieve contiguous coverage [76], [77], leaving little or no space to accommodate additional missions on the satellite.…”

Section: B Antennasmentioning

confidence: 99%

Satellite Communications in the New Space Era: A Survey and Future Challenges

Kodheli

Lagunas

Maturo

et al. 2021

IEEE Commun. Surv. Tutorials

679

428

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Satellite communications (SatComs) have recently entered a period of renewed interest motivated by technological advances and nurtured through private investment and ventures. The present survey aims at capturing the state of the art in SatComs, while highlighting the most promising open research topics. Firstly, the main innovation drivers are motivated, such as new constellation types, on-board processing capabilities, nonterrestrial networks and space-based data collection/processing. Secondly, the most promising applications are described i.e. 5G integration, space communications, Earth observation, aeronautical and maritime tracking and communication. Subsequently, an in-depth literature review is provided across five axes: i) system aspects, ii) air interface, iii) medium access, iv) networking, v) testbeds & prototyping. Finally, a number of future challenges and the respective open research topics are described.

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“…On this basis, a new generation of high throughput satellites (HTS) has been developed to provide around 100 Gb/s for broadband services using Ka-band frequencies, and it is expected that the next HTS generation will reach several hundreds of Gb/s [83]. The design of multi-beam antennas for Ka-band HTS systems [84] has become a major issue for satellite operators, as it must cope with some challenging requirements.…”

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

confidence: 99%

“…In both design approaches, SFPB and MFPB, the apertures are normally realized by reflector antennas, which provide high gain and bandwidth with limited manufacturing costs [84]; however, other promising alternatives are currently being investigated to produce multi-spot coverage by using a single aperture, such as aperiodic phased arrays [95], [96] and passive [97] and active [98] lenses.…”

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

confidence: 99%

“…Dichroic sub-reflectors have been proposed to enable the reuse of the same main reflector for Ku-and Ka-band missions [104], or for both Tx and Rx operation in Kaband [84], [93]. This will provide a significant saving of space in the satellite, at the same time as allowing to separate the feed chains for each frequency band.…”

Section: Design Manufacturing and Test Of A Dual Polarized Reflectarmentioning

confidence: 99%

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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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Multibeam antennas for very high throughput satellites in Europe: Technologies and trends

Cited by 51 publications

References 7 publications

Shaped Continuous Parallel Plate Delay Lens With Enhanced Scanning Performance

Shaped Continuous Parallel Plate Delay Lens With Enhanced Scanning Performance

Satellite Communications in the New Space Era: A Survey and Future Challenges

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

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