Comparison of loading of Metamaterial on Patch and Ground of a Triangular Patch Antenna
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Abstract
Two different antenna models are presented in this paper They are designed with Spiral resonators (SR); One with SR on Ground and another with SR’s on Patch. In Model I, A compact dual band triangular patch antenna using a novel metamaterial structure in its ground plane is designed. The role of the metamaterial structure is to miniaturize the antenna, inducing multi resonances. The antenna resonates at 5.46, 6.02 GHz with adequate gains of 3.2, and 5.6 dBs respectively. Key Antenna parameters obtained from the simulator are presented along with detailed discussions. In Model II, A novel dual band triangular patch antenna designed using Spiral resonators (SR) in its patch is presented. The metamaterial structure (SR) used in this design effectively reduces the size of conventional patch resulting in dual resonances with wide apart spectras. The antenna is found to resonate at 10.38, 13.99 GHz with gains of 3.6 and 5.4 dBs respectively. The antenna has an Omnidirectional pattern and good directivity at the resonant bands. A comparitive remark is also presented.
Keywords: Microstrip patch antenna, linear polarization, wireless applications
Keywords: Microstrip patch antenna, linear polarization, wireless applications
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