1945–2010: 65 Years of Satellite History From Early Visions to Latest Missions

Evans, B.G.; Thompson, P. T.; Corazza, G.E.; Vanelli‐Coralli, Alessandro; Candreva, Enzo Alberto

doi:10.1109/jproc.2011.2159467

Cited by 31 publications

(14 citation statements)

References 37 publications

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“…Therefore, this paper provides an overview of recent advances and development trends in the field of small satellites, with a special focus on 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 Consumer Internet SME Broadband enterprise Figure 1: INTELSAT, EUTELSAT, and INMARSAT annual revenues (left). Annual sales of VSAT terminals by type (right) [7].…”

Section: Introductionmentioning

confidence: 99%

From Connectivity to Advanced Internet Services: A Comprehensive Review of Small Satellites Communications and Networks

Burleigh

Cola

Morosi

et al. 2019

Wireless Communications and Mobile Computing

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Recently, the availability of innovative and affordable COTS (Commercial Off-The-Shelf) technological solutions and the ever-improving results of microelectronics and microsystems technologies have enabled the design of ever smaller yet ever more powerful satellites. The emergence of very capable small satellites heralds an era of new opportunities in the commercial space market. Initially applied only to scientific missions, Earth observation and remote sensing, small satellites are now being deployed to support telecommunications services. This review paper examines the operational features of small satellites that contribute to their success. An overview of recent advances and development trends in the field of small satellites is provided, with a special focus on telecommunication aspects such as the use of higher frequency bands, optical communications, new protocols, and advanced architectures.

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Section: Introductionmentioning

confidence: 99%

From Connectivity to Advanced Internet Services: A Comprehensive Review of Small Satellites Communications and Networks

Burleigh

Cola

Morosi

et al. 2019

Wireless Communications and Mobile Computing

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“…Offset reflector antennas (ORAs) are often used as ground terminals for uplink/downlink from satellites for TV and internet access. Small offset antennas in the range of 0.5 to 2.5 m are known as very small aperture terminal (VSAT) . VSATs of ORA are frequently used in various applications such as communication satellites, radars, and so forth due to good isolation between the feed and the reflector .…”

Section: Introductionmentioning

confidence: 99%

“…Small offset antennas in the range of 0.5 to 2.5 m are known as very small aperture terminal (VSAT) . VSATs of ORA are frequently used in various applications such as communication satellites, radars, and so forth due to good isolation between the feed and the reflector . However, cross‐polarized lobes are formed at the asymmetric plane of the secondary radiation pattern of the offset reflector due to the depolarization effect produced by its structural asymmetry.…”

Section: Introductionmentioning

confidence: 99%

“…1 VSATs of ORA are frequently used in various applications such as communication satellites, radars, and so forth due to good isolation between the feed and the reflector. [1][2][3] However, cross-polarized lobes are formed at the asymmetric plane of the secondary radiation pattern of the offset reflector due to the depolarization effect produced by its structural asymmetry. High levels of cross-polarization affect the quality of communication signals, particularly when such VSAT antennas are used for polarization diversity.…”

Section: Introductionmentioning

confidence: 99%

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Microstrip patch antenna feed for offset reflector antenna for dual band application

Debbarma

Bhattacharjee

2019

Int J RF Microw Comput Aided Eng

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In this article, details of a dual band microstrip patch antenna (MPA) array feed for an offset reflector antenna is presented. The main objective of the proposed structure is to achieve low cross‐polarization at Φ = 90° plane in the reflector pattern. Low cross‐polar levels in the reflector pattern are achieved by illuminating the reflector with fields of the proposed dual band feed structure. A centered circular array as the dual band feed structure is proposed in which the central radiating element is a dual mode circular MPA operating at 6 GHz and the surrounding circular ring of eight circular MPA elements operating at 4 GHz in the dominant mode. The dual mode central antenna uses the concept of conjugate field matching for cross‐polarization reduction. TM21 mode is excited at an appropriate ratio with the TM11 mode to achieve the proper field matching at 6 GHz. The radius of the surrounding circular array is varied to obtain cross‐polarization better than −30 dB at both the resonant frequencies. The offset reflector gain is found to be better than 37 dB with a 2.5 m parabolic reflector and F/D = 0.8 at both the operating frequencies.

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“…Satellite networks are an essential element in the establishment of long‐distance communications and in the future, they will have a major role in the implementation of the so‐called global information infrastructure . On the other hand, Internet is a reality that increasingly pervades our lives more and more; thus, we need a more secure, reliable and scalable Internet architecture for the future .…”

Section: Introductionmentioning

confidence: 99%

RA and DA satellite access schemes: a survey and some research results and challenges

Celandroni

Ferro

Gotta

2013

Int J Communication

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SUMMARY This paper surveys the most popular random access (RA), demand assignment (DA), and hybrids schemes for satellite broadband access networks. In addition, we present some recent research results that we obtained when a reliable transmission control protocol, that is, TCP, is coupled with the most promising RA methods foreseen in the second generation of Digital Video Broadcasting–Return Channel via Satellite standard. In fact, the necessity to support a wider range of IP‐based traffic, as in the case of either Supervisory Control And Data Acquisition systems or Machine‐to‐Machine communications, fosters the introduction of RA schemes for information transport able to cope with large network sizes and low duty cycle bursty traffic with frequent inactivity periods on the return link. As an indication of future research aspects, we also offer, in the Conclusions section, a list of items to be investigated so that the satellite can become an integral part of the Future Internet. Copyright © 2013 John Wiley & Sons, Ltd.

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1945–2010: 65 Years of Satellite History From Early Visions to Latest Missions

Abstract: Abstract-This

Cited by 31 publications

References 37 publications

From Connectivity to Advanced Internet Services: A Comprehensive Review of Small Satellites Communications and Networks

From Connectivity to Advanced Internet Services: A Comprehensive Review of Small Satellites Communications and Networks

Microstrip patch antenna feed for offset reflector antenna for dual band application

RA and DA satellite access schemes: a survey and some research results and challenges

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