标签: 等角

宽带等角螺旋天线设计Log-Spiralantennafrom2to40GHzwithimpedancematchingPetrPiksaDepartmentofElectromagneticField,FacultyofElectricalEngineering,CzechTechnicalUniversityinPrague,Technicka2,16627,Prague6,CzechRepublicPhone:+420224352275,Fax:+420233339958,E-mail:piksap@fel.cvut.czAbstractThedesignedantennaconsistsofthelogarithmicallyspiralstriplineantennaandwidebandtransformerfrom50to150.Thisantennaissuitableasawidebandiluminatorforaparabolicreectorworkingintherange2to40GHz.INTRODUCTIONThespiralconsistsoftwoidenticalarmswhichareshiftedabout180withrespecttoeachother.Thecurvesofthearmsaredescribedbythefunctionr=r0ea(φ+)(1)wherer0isthedistanceatφ=0,adeterminestheincreasingrateofrand……