Miniaturized Array Antenna Using Artificial Magnetic Materials for Satellite-Based AIS System

Foged, L. J.; Giacomini, A.; Saccardi, F.; Tancioni, L. M.; Schirosi, V.; Cintio, A. Di; Pietra, G. Della; Caliumi, Alberto; Duchini, G.; Fonseca, Nelson J. G.; Maagt, P. de; Baracco, J. M.

doi:10.1109/tap.2015.2398462

Cited by 21 publications

(9 citation statements)

References 10 publications

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“…When considering planar design solutions, there are number of miniaturization techniques. Meandering of microstrip, the use of artificial magnetic materials [22], [23] or aritficial dielectrics [24], can be considered for such SmallSat antenna integration. For end-fire radiation, conventional Yagi-Uda antennas or arrays, based on microstrip dipoles [25], can also be implemented and miniaturized to satisfy the size and operating frequency requirements [18].…”

Section: Folded Picosat Unicorn2mentioning

confidence: 99%

Compact and Planar End-Fire Antenna for PicoSat and CubeSat Platforms to Support Deployable Systems

Buendía

Podilchak

Liberto

et al. 2022

IEEE Open J. Antennas Propag.

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A miniaturized planar Yagi-Uda antenna for integration with PicoSats or other SmallSat missions is proposed. Miniaturization techniques, such as meandering and 1-D artificial dielectric concepts to reduce the guided wavelength, are employed to overcome space constraints imposed by the SmallSat footprint while still maintaining good performance for the FR-4 antenna. Simulations and measurements have been carried out on the Unicorn-2 PicoSat chassis from Alba Orbital and are in good agreement. Also, antenna dimensions have been reduced between 15% and 66% when compared to a more conventional planar Yagi-Uda antenna working at the same frequency. This compactness allows for simple integration with the deployable solar panel array of the Unicorn-2 PicoSat spacecraft. Full end-fire radiation is achieved and peak gain values are about 5 dBi for the antenna when fully integrated on the satellite chassis, offering an attractive solution for downlink connectivity. This compact antenna design can also be used within an array for beam steering or integrated within the solar cell modules of other PicoSats, CubeSats and SmallSats. Applications include Earth observation, remote sensing, as well as SmallSat to ground station communications. The planar Yagi-Uda antenna may also be useful wherever end-fire radiation is required from a compact antenna structure.

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Section: Folded Picosat Unicorn2mentioning

confidence: 99%

Compact and Planar End-Fire Antenna for PicoSat and CubeSat Platforms to Support Deployable Systems

Buendía

Podilchak

Liberto

et al. 2022

IEEE Open J. Antennas Propag.

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“…Meandering techniques were applied to shorten the axial length of quadrifilar helix antennas, with reduction factors ranging from 48% up to 72%, while still providing in some cases an iso‐flux radiation pattern 50,51 . Another interesting fixed antenna solution considered for AIS applications consists of crossed‐dipoles over an artificial magnetic conductor (AMC) ground plane 52 . This structure provides a low profile, in the order of λ 0 /25 at 162 MHz, while maintaining high aperture efficiency and low back radiation.…”

Section: Antenna Solutionsmentioning

confidence: 99%

“…50,51 Another interesting fixed antenna solution considered for AIS applications consists of crossed-dipoles over an artificial magnetic conductor (AMC) ground plane. 52 This structure provides a low profile, in the order of λ 0 /25 at 162 MHz, while maintaining high aperture efficiency and low back radiation. A variation of the design using composite materials was also reported, 27 with a further reduced thickness of about λ 0 /50 at 162 MHz (see Figure 5A).…”

Section: Fixed Antennasmentioning

confidence: 99%

Review of antenna technologies for very high frequency Data Exchange Systems

Buendía

Liberto

Goussetis

et al. 2021

Satell Commun Network

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Summary The Automated Identification System (AIS) was originally developed as a terrestrial system tracking vessels near the coastline. Dedicated channels were allocated within the spectrum historically reserved for maritime applications in the very high frequency (VHF) band, enabling long range communications, up to a few kilometers. There have been various initiatives in the last decade that extended this system with a space segment, enabling global monitoring of vessels beyond the range of terrestrial stations. Recently, the World Radiocommunication Conference has allocated frequencies for the extension of this system to a two‐way VHF Data Exchange System (VDES) via satellite. This requires to adapt spaceborne antenna solutions previously developed for AIS, particularly for missions using small satellites and CubeSats. This paper provides a timely review of existing VHF antenna solutions and new concepts under development which could be applicable to VDES missions. Some key metrics are identified to provide a comparative study between various candidate solutions. Considering the range of possible missions, from secondary payloads on‐board larger satellites to dedicated constellations, it is believed that a number of antenna products can find application in future VDES space‐based infrastructure.

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“…According to the International Convention for Safety of Life at Sea (SOLAS) proposed by IMO, all ships over 300 GT must be equipped with at least one AIS device to avoid maritime collision [6]. Australia [7], USA [8], and European Union [9] have deployed AIS along their coastlines and on most commercial vessels. China also has set up its shore-based automatic identification network system since 2003 [10].…”

Section: Introductionmentioning

confidence: 99%

Positioning Error Analysis of Ranging-Mode Using AIS Signals in China

Zheng

Zhang

2016

Journal of Sensors

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In order to provide resilient position, navigation, and time (PNT) information forE-Navigation, the ranging-mode (R-Mode) positioning using automatic identification system (AIS) signals is encouraged. As the accuracy is the key for the positioning system, this paper investigates the position error of the R-Mode positioning based on AIS shore-based station in China. The measurement errors of Gaussian filtered minimum shift keying (GMSK) demodulation based on carrier phase locking loop are investigated in theory. The dilution of precision (DOP) for time of arrival (TOA) and time difference of arrival (TDOA) used in R-Mode positioning of AIS is discussed in two measurement mechanisms. The positioning error distributions in the North, East, and South Sea regions of China based on the existing AIS shore-based stations are evaluated. The positioning accuracy is at the meter level in the most traffic dense areas to meet the requirements for vessel navigation.

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Miniaturized Array Antenna Using Artificial Magnetic Materials for Satellite-Based AIS System

Cited by 21 publications

References 10 publications

Compact and Planar End-Fire Antenna for PicoSat and CubeSat Platforms to Support Deployable Systems

Compact and Planar End-Fire Antenna for PicoSat and CubeSat Platforms to Support Deployable Systems

Review of antenna technologies for very high frequency Data Exchange Systems

Positioning Error Analysis of Ranging-Mode Using AIS Signals in China

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