Using inflatable antennas for portable satellite-based personal communications systems

Mathers, Naomi; Thompson, Lachlan

doi:10.1016/j.actaastro.2006.11.016

Cited by 3 publications

(1 citation statement)

References 8 publications

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“…The first development of such antennas appeared in the 80s of the last century. At present, they are considered one of the promising areas for the development of space technologies [16][17][18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

On the Possibility of Using Epoxy Prepregs for Carcass-Inflatable Nanosatellite Antennas

Garishin

Свистков

Belyaev

et al. 2018

MSF

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The possibility of using epoxy prepregs (fabric impregnated with epoxy resin) for carcass-inflatable antennas on space nanosatellites was investigated. It is shown that the optimal method of obtaining such devices is the use of reactive mixtures of hot cure, when the chemical reaction of curing of antenna deployed in space occurs under the action of solar radiation. In this case, the antenna is put into orbit in the nanosatellite in a compact form and no additional mechanisms are needed to give it the final working shape. The rheological properties of the mixture of epoxy resin YD-128 with hardener TEAT-1, suitable for making hot-curing prepregs and its use in near-earth orbit, are investigated. The dependence of rheological properties on temperature, hardener concentration and curing time is established. With the help of computer simulation, the temperature is calculated, to which the antenna carcass can be heated in near-earth orbit under the influence of thermal radiation from the Sun and the Earth taking into account its orientation in relation to the sources of heat. It is established that the process of hot curing of the antenna is possible due to solar and terrestrial radiation only when the frame is covered with a thin metallized layer that is close in characteristics to the layer of aluminum foil.

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Section: Introductionmentioning

confidence: 99%

On the Possibility of Using Epoxy Prepregs for Carcass-Inflatable Nanosatellite Antennas

Garishin

Свистков

Belyaev

et al. 2018

MSF

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Threats and Vulnerabilities of Next Generation Satellite Personal Communications Systems: A Defence Perspective

Beaumont¹,

Doucet²

2007

2007 IEEE Globecom Workshops

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The Fourth Generation (4G) of wireless communications systems is coming, combining voice and data on a single packet-based all-IP core network, with bandwidth providing data rates in the range of a few to hundreds of MB/s. This new high-speed data network, combined with the latest technology developments, should enable the advent of a multitude of new multimedia applications, which will be available to the user on his own handset. Following the wireless Personal Communications Systems (PCS) trend, Satellite Personal Communications Systems (SPCS) are also expected to provide multimedia applications on this integrated network. However, as this new technology is rolled-out, it is also expected that it will come with its own set of vulnerabilities that could potentially constitute a threat to network reliability and secure communications. Because of its numerous advantages, SPCS is known to be used for security and defence applications by military and paramilitary forces around the world. From a defence perspective, it is therefore imperative to address this potential emerging threat.

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Multiobjective Shape Optimization for Deployment and Adjustment Properties of Cable-Net of Deployable Antenna

You¹,

Pei²

2015

Mathematical Problems in Engineering

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Based on structural features of cable-net of deployable antenna, a multiobjective shape optimization method is proposed to help to engineer antenna’s cable-net structure that has better deployment and adjustment properties. In this method, the multiobjective optimum mathematical model is built with lower nodes’ locations of cable-net as variables, the average stress ratio of cable elements and strain energy as objectives, and surface precision and natural frequency of cable-net as constraints. Sequential quadratic programming method is used to solve this nonlinear mathematical model in conditions with different weighting coefficients, and the results show the validity and effectiveness of the proposed method and model.

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Using inflatable antennas for portable satellite-based personal communications systems

Cited by 3 publications

References 8 publications

On the Possibility of Using Epoxy Prepregs for Carcass-Inflatable Nanosatellite Antennas

On the Possibility of Using Epoxy Prepregs for Carcass-Inflatable Nanosatellite Antennas

Threats and Vulnerabilities of Next Generation Satellite Personal Communications Systems: A Defence Perspective

Multiobjective Shape Optimization for Deployment and Adjustment Properties of Cable-Net of Deployable Antenna

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