Recent Developments in Ka-Band Satellite Antennas for Broadband Communications

Amyotte, E.; Demers, Y.; Hildebrand, L.T.; Forest, M.; Riendeau, S.; Sierra-Garcia, Santiago; Uher, J.

doi:10.2514/6.2010-8719

Cited by 27 publications

(10 citation statements)

References 3 publications

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“…Nevertheless, current and envisaged HTS employ a single feed per beam architecture [12]. Increasing the frequency re-use results in a very high feeder link bandwidth, which increases the required number of GWs.…”

Section: Precoding and Beamforming In The Satellite Contextmentioning

confidence: 99%

Multibeam joint precoding

Christopoulos

Chatzinotas

Taricco

et al. 2015

Cooperative and Cognitive Satellite Systems

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Section: Precoding and Beamforming In The Satellite Contextmentioning

confidence: 99%

Multibeam joint precoding

Christopoulos

Chatzinotas

Taricco

et al. 2015

Cooperative and Cognitive Satellite Systems

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“…The general concept of antenna feed networks is based on waveguide technology. To make a microwave subsystem [1], we combine a variety of components and adapt their parameters to guide the wave properly. The most common architecture contains active and passive microwave circuits.…”

Section: Introductionmentioning

confidence: 99%

A Dual Band Orthomode Transducer in K/Ka Bands for Satellite Communications Applications

Kamili¹,

Tribak²,

Terhzaz³

et al. 2018

PIER Letters

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This article presents the design, simulation and machining of a dual Orthomode Transducer for feeding antenna using waveguide technology. Linear orthogonal polarizations in common port are separated to single linear polarizations in other ports. This device is developed to work in K and Ka bands and could be exploited in satellite communications applications. Also, it is designed to provide good scattering parameters results experienced with simulation tools and real load laboratory measurement. The designed circuit exhibits important results with return losses less than 25 dB, insertion losses in theory of about 0.05 dB as well as a good isolation of 40 dB in both frequency bands of interest (19.4 GHz-21.8 GHz) and (27 GHz-32 GHz).

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“…The Ka User 1, 3 and 4 antennas have a smaller aperture than the Ka Gateway and Ka User 2 antennas, which have stringent isolation requirements. The Ka Gateway feedchain is based on a turnstile configuration whereas the Ka users' feedchains are based on a reverse turnstile configuration [2].…”

Section: Introductionmentioning

confidence: 99%