IEEE Transactions on Antennas and Propagation · 2005 · 215 citations · 8 references
EngineeringElectrical EngineeringAntennasComputational ElectromagneticsMicrowave EngineeringAntenna DesignAntenna RadiationAntenna Radiation PatternsMicrowave AntennasPeriodic Electromagnetic StructuresPlanar AntennasDielectric ConstantFar-field AnalysisFar-field CharacteristicsFar-field RadiationLeaky-wave AntennasPatch AntennasPeriodic Antenna ArraysPrinted Antennas
The far-field radiation characteristics of a two-dimensional (2-D) periodic leaky-wave antenna (LWA) constructed from a periodic array of metal patches on a grounded dielectric substrate is investigated. A simple dipole source is used as the excitation. Reciprocity together with a periodic spectral-domain method of moments is used to calculate the far-field pattern. Design rules for the scan angle, the substrate dielectric constant, and the periodicity are provided. Finally, a comparison of the 2-D periodic LWA and a dielectric-layer LWA is given to show the similar performance of the two antennas.
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