Topic
Reflective array antenna
About: Reflective array antenna is a research topic. Over the lifetime, 4366 publications have been published within this topic receiving 57884 citations.
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Patent•
19 May 1997
TL;DR: A combination satellite television signal receiving antenna and a UHF/VHF dipole antenna was used in this paper for both horizontal and vertical adjustment of a UAV with a circular periphery.
Abstract: A combination satellite television signal receiving antenna and a UHF/VHF antenna, particularly suitable for use with recreational vehicles The satellite antenna is mounted for both horizontal and vertical adjustment having a circular periphery and the UHF/VHF dipole antenna is attached thereto and is of an arcuate configuration defining a portion of a circle concentric to the satellite receiving antenna dish configuration The television and UHF/VHF antenna are mounted for simultaneous adjustment
14 citations
26 Mar 2012
TL;DR: A consortium of research institutes are developing an aperture array concept for the lower and mid frequencies of SKA (square Kilometer Array) as mentioned in this paper, which is the Electronic Multi-Beam Radio Astronomy Concept (EMBRACE).
Abstract: A consortium of research institutes are developing an aperture array concept for the lower and mid frequencies of SKA (Square Kilometer Array) An important demonstrator of this concept is the Electronic Multi-Beam Radio Astronomy Concept (EMBRACE) This is a phased array antenna in L-band and it demonstrates the aperture array concept for the lower SKA frequencies This paper provides a system overview, the current status of the EMBRACE stations and discusses a few of the the main results achieved so far Next, a system overview is presented of the successor of EMBRACE know as AAVS-mid, which is a 2000 m2 array to be distributed over 15 stations at the SKA site in 2015
14 citations
Proceedings Article•
01 Oct 2009
TL;DR: In this paper, the authors proposed an approach leading to grouping of functions operated in various frequency bands and to reduction of thickness of the antennas, making use of metamaterials and FSS structures, and the overall architecture has to deal with the various requirements.
Abstract: Increase of functions and improvement of performance required on board aircrafts, associated to the limited amount of available areas to implement the equipments drive an approach leading to grouping of functions operated in various frequency bands and to reduction of thickness of the antennas Technical and technology research is being conducted on wideband and multi-band radiating structures, making in particular use of metamaterials and FSS structures, and the overall architecture has to deal with the various requirements
14 citations
22 Oct 2000
TL;DR: In this paper, the Harris Government Communication Systems Division (GCSD) is developing a phased array antenna to provide geostationary Earth orbit (GEO) spacecraft the capability to transfer large volumes of data via a space-to-ground link in the 20.20 to 21.20 GHz band.
Abstract: A phased array antenna is under development by Harris Government Communication Systems Division (GCSD), to provide geostationary Earth orbit (GEO) spacecraft the capability to transfer large volumes of data via a space-to-ground link in the 20.20 to 21.20 GHz band. Phased array antennas provide certain advantages over reflector antennas, and may therefore be considered a desirable option for a GEO spacecraft. Because the beam can be steered electronically, no gimballing is required, permitting agile beam repositioning at extremely high rates. This permits a single antenna to communicate with multiple spatially distributed ground stations by agilely repositioning (hopping) the antenna beam from user to user. A phased array antenna can be positioned on a spacecraft to avoid the need for deployment. The distributed amplifiers constituting the active array provide a failure tolerant architecture. The key components of the antenna are also described.
14 citations
06 Apr 2014
TL;DR: In this article, the authors present design examples of full electronically and mixed beam steering antennas for broadband mobile satellite communication, which enable beam steering and polarization control, and demonstrate the concept by successfully tested one and two-way PAA (Phased Array Antenna) prototypes.
Abstract: This paper presents design examples of full electronically and mixed beam steering antennas for broadband mobile satellite communication. Custom designed multifunctional MMIC devices enable beam steering and polarization control. The full phased array antenna Integrated with an appropriate MODEM can provide unique and high value solution for different applications that require Broadband communication while “on the move”. The solution opens the door for many commercial and defense/HLS applications that require Broadband communications for moving vehicles. The concept was demonstrated by successfully tested one - and two-way PAA (Phased Array Antenna) prototypes.
14 citations