7Search.ccantenna gain and aperture areaantenna gain and aperture areaantenna gain vs aperture sizenear-field gain of aperture antennasantenna aperture gain calculatoraperture area of antennaeffective aperture area of antennaaperture of an antennaeffective area vs antenna gaineffective aperture of antennawhat is an antenna apertureantenna gain and rangeaperture efficiency of antenna