›› 2012, Vol. 32 ›› Issue (5): 17-20.doi: 10.3780/j.issn.1000-758X.2012.05.003

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DesignofKu/KaDualbandSharedApertureMicrostripArrayAntenna

 LIU  Yang, DONG  Tao, WANG  Xin   

  1. (BeijingInstituteofSatelliteInformationEngineering, Beijing100086)
  • Received:2011-10-24 Revised:2011-12-15 Online:2012-10-25 Published:2012-10-25

Abstract: AnovelKu/Kadualbandsharedaperturemicrostriparrayantennawasproposed.Theantennaelementswereplacedonasinglelayertokeepthestructurecompact.TheKu-bandelementswerefedattheedgesbymicrostriplines,whiletheKa-bandwascoupledfedbyL-shapedaperturesinthegroundplanetorealizecircularpolarization.Thesimulatedandmeasuredresultsdemonstratethefeasibilityoftheproposeddesign.Thesimulatedimpedancebandwidthoftheantennais2.2%forKu-bandand4.3%forKa-bandrespectively,andmeasuredresultsare2.1%and3.4%respectively.TheantennastructureisapplicableforKu/Kadualbandsatellitecommunication.

Key words: Microstripantenna, Dualbandsharedapertureantenna, Coupling feed, Circularpolarization, Satellitecommunication