Ka-band user antennas for VHTS GEO applications

Demers, Y.; Amyotte, E.; Glatre, Karim; Godin, Marc-Andre; Hill, Jonathan; Liang, A.; Riel, Mathieu

doi:10.23919/eucap.2017.7928803

Cited by 21 publications

(14 citation statements)

References 2 publications

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“…Very High Throughput Satellites (VHTS) are usually geostationary satellite systems that will be able to meet traffic demand in the upcoming years [1][2][3]. In this sense, VHTS systems exceed the capacity of traditional FSS and MSS systems (Fixed and Mobile Satellite Services, respectively) with contoured regional footprints and aspire to achieve 1 Terabit/s per satellite in the near future [4]. Indeed, VHTS has been claimed either by users, satellite operators, or manufacturers to play a key role in future 5G networks as a complement to terrestrial networks [5,6].…”

Section: Introductionmentioning

confidence: 99%

Forward Link Optimization for the Design of VHTS Satellite Networks

et al. 2020

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The concept of geostationary VHTS (Very High Throughput Satellites) is based on multibeam coverage with intensive frequency and polarization reuse, in addition to the use of larger bandwidths in the feeder links, in order to provide high capacity satellite links at a reduced cost per Gbps in orbit. The dimensioning and design of satellite networks based on VHTS imposes the analysis of multiple trade-offs to achieve an optimal solution in terms of cost, capacity, and the figure of merit of the user terminal. In this paper, we propose a new method for sizing VHTS satellite networks based on an analytical expression of the forward link CINR (Carrier-to-Interference-plus-Noise Ratio) that is used to evaluate the trade-off of different combinations of system parameters. The proposed method considers both technical and commercial requirements as inputs, including the constraints to achieve the optimum solution in terms of the user G/T, the number of beams, and the system cost. The cost model includes both satellite and ground segments. Exemplary results are presented with feeder links using Q/V bands, DVB-S2X and transmission methods based on CCM and VCM (Constant and Variable Coding and Modulation, respectively) in two scenarios with different service areas.

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Section: Introductionmentioning

confidence: 99%

Forward Link Optimization for the Design of VHTS Satellite Networks

et al. 2020

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“…Very High Throughput Satellites (VHTS) are usually geostationary satellite systems that will be able to meet traffic demand in the upcoming years [1,2]. In this sense, VHTS systems exceed the capacity of traditional FSS and MSS systems (Fixed and Mobile Satellite Services, respectively) with contoured regional footprints and aspire to achieve 1 Terabit/s per satellite in the near future [3]. Indeed, VHTS has been claimed either by users, satellite operators or manufacturers to play a key role in future 5G networks as a complement to terrestrial networks [4,5].…”

Section: Introductionmentioning

confidence: 99%

“…VHTS systems are based on the following technical considerations to achieve expected performance and overcome atmospheric attenuations in Ka-band satellite links: multibeam footprint in the service area, reuse of frequency and polarization [3,6], use of highly spectral efficient transmission techniques (e.g. DVB-S2X) and advanced link adaptation strategies such as Variable and Adaptive Coding and Modulation (VCM and ACM, respectively) [7].…”

Section: Introductionmentioning

confidence: 99%

Forward Link Optimization for the Design of VHTS Satellite Networks

Ortíz¹,

Martínez²,

Natera³

et al. 2020

Preprint

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The concept of geostationary VHTS (Very High Throughput Satellites) is based on multibeam coverage with intensive frequency and polarization reuse in addition to the use of larger bandwidths in the feeder links, in order to provide high capacity satellite links at a reduced cost per Gbps in orbit. The dimensioning and design of satellite networks based on VHTS imposes the analysis of multiple trade-offs to achieve an optimal solution in terms of cost, capacity and figure of merit of the user terminal. In this paper, we propose a new method for sizing VHTS satellite networks based on an analytical expression of the forward link CINR (Carrier-to-Interference-plus-Noise Ratio) that is used to evaluate the trade-off of different combinations of system parameters. The proposed method considers both technical and commercial requirements as inputs including the constraints to achieve the optimum solution in terms of the user G/T, the number of beams and the system cost. The cost model includes both satellite and ground segments. Exemplary results are presented with feeder links using Q/V bands, DVB-S2X and transmission methods based on CCM and VCM (Constant and Variable Coding and Modulation, respectively) in two scenarios with different service areas.

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“…This Communication via satellites is a viable solution for internet access especially in remote areas, therefore to meet such current day satellite applications, hybrid antennas are of best choice [1]. In order to comply with the demanding GEO satellite gain requirements, phased arrays are usually combined with an imaging reflector configuration and are mostly used to enhance the feed arrays directivity [2]. In recent years significant amount of research was done on array fed reflector systems to achieve high performance over traditional horn fed reflectors [3] [4].…”

Section: Introductionmentioning

confidence: 99%

Hybrid Beamsteering of Ka-Band Array-Fed Reflector Antenna for Satellite Communication Links

Kalyan

Kotamraju

2019

International Journal of Simulation: Systems, Science &Amp; Technology

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In this paper we present the design and analysis of Ka band array fed reflector antenna for satellite communication links. The design consists of curved reflector geometry of 0.8 m which is fed with five element linear array antenna operating at 20.2 GHz (Ka band). As satellite applications demand beam-steering with higher gain and narrow beam, we use and analyze electromechanical beam-steering, i.e. electronic and mechanical steering (Hybrid beam-steering), through array fed reflectors. To ensure good scanning capabilities the feed array is configured in horizontal as well as in vertical directions. A 2-D scanning of ±6 o is achieved when the feed element is placed horizontally in focal plane whereas ±3 o when the feed element is placed vertically in focal plane with the proposed array fed reflector. The proposed antenna maintains a constant performance throughout the scanning range which helps vehicular tracking and many other satellite applications.

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Ka-band user antennas for VHTS GEO applications

Cited by 21 publications

References 2 publications

Forward Link Optimization for the Design of VHTS Satellite Networks

Forward Link Optimization for the Design of VHTS Satellite Networks

Forward Link Optimization for the Design of VHTS Satellite Networks

Hybrid Beamsteering of Ka-Band Array-Fed Reflector Antenna for Satellite Communication Links

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