433Vol.43No.3
20216Jun.2021
,,,
(,)
:,
。,
,
,20%。
(SIW)。SIW,8×8
。,52.8~67.2GHzVSWR<2(
23.3%),3dB20.2%,25.2dBic,71.5%,
。
:;;;
:::-()--
-
ZHANGXiaoling,XUYuanyuan,WANGZhen,FUXiaotian
(Xi’anInstituteofElectromechanicalInformationTechnology,Xi’an710065,China)
:Acircularlypolarized(CP)aperture-coupledmagneto-electric(ME)dipoleantennaappliedtomilli-
meterwavewasproposedinthispaper.TheCPME-dipoleantennafedbyatransverseslotetchedonthebroad
wallofasectionofshorted-endsubstrateintegratedwaveguide(SIW)wasconvenienttointegrateintosub-
strates.Thewholestructurewascomposedoffourverticalmetallicpinsandfourhorizontalpatches.Theplanar
electricdipolewasattributedtothetwopairsofhorizontalpatches,whilethemagneticdipoleisrealizedbythe
aperturebetweenthepatches.InordertogenerateCPradiation,anadditionalmetallicstripwasintroducedto
connecttwopatchsectionslocatedatdiagonalpositions.Besides,theinnercornersoftheotherpairofpatch
sectionswerecutpartially.Basedonthestableunidirectionalradiationpatternsoftheantennaelement,an8×8
high-ainwidebandplanarantennaarraywasproposedfor60GHzmillimeterwaveapplications.Themeasuredg
impedancebandwidthofthefabricatedprototypewas23.3%for|S11|<-10dB.BecauseofthewideAR
bandwidthofthenewantennaelement,awideARbandwidthof20.2%couldbeachievedbythisarray.Gainup
to25.2dBicandgoodradiationefficiencyofaround71.5%werealsoobtainedduetotheuseofafull-corporate
SIWfeednetwork.
:wideband;circu