Mechanically scanned, electronically zoomed, receive and transmit antenna for low Earth orbit spaceborne wideband applications in Ku band

Croq, F.; Dolmeta, F.; Lejay, B.; Vourch, E.; Reynaud, M.

doi:10.1109/aps.2002.1016965

Cited by 2 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Low-earth-orbit (LEO) satellite constellations for wireless Internet-type applications have been proposed which use several satellites, each of which has several antennas that possess a "zooming" capability. Such antennas must be able to be scan mechanically but be able to alter their beamwidths electronically [13]. One way of zooming in or out is to switch outer rings of elements of the array on or off, respectively.…”

Section: Introductionmentioning

confidence: 99%

Solution of “switched element” array synthesis problems using the parallel generalized projection algorithm

Swierczynski

McNamara

2004

Micro & Optical Tech Letters

View full text Add to dashboard Cite

In certain antenna arrays (“switched‐element” arrays), some of the radiating elements are turned on or off during operation to provide some desired reconfigurability at different times, or are effectively turned on or off at different frequencies, through the use of filters connected to groups of radiating elements, in order to retain the same performance over wide‐frequency bands. In such circumstances, the excitations of the elements must be the same, irrespective of whether all or only some of the elements are being used. Thus, one may wish to synthesize an array (that is, determine its element excitations) so that the required performance is obtained under different sets of circumstances. In this paper, we indicate how the use of a parallel approach allows the method of generalized projections to be used for such synthesis problems, and demonstrate its use for a specific example. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 40: 465–471, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20006

show abstract

Section: Introductionmentioning

confidence: 99%