Abstract
Bandwidth enhancement metasurface antenna is proposed in this paper. The structure consists of metasurface as the top layer and patch antenna as the bottom layer. The metasurface consist of array of thirty unit radiating elements. The radiating element is Complementary Split Ring Resonator (CSRR). On increasing the array of unit element the waves coming out from the antenna are affected as a result of which equivalent relative permittivity of the structure changes and so there is change in the bandwidth. The dimension of the metasurface antenna is 38mm × 50mm with a thickness of 3.048mm. The metasurface which is place above the patch antenna is acting like Double Negative (DNG) Material. The metasurface consists of 30 unit cells arranged in a 5×6 layout. Rogers RO4350B is used as substrate for both patch and metasurface, antenna resonates at 5.7 GHz with the bandwidth varying from 70MHz to 140MHz. Therefore, the proposed antennais suitable for WiFiapplication. AnsoftHFSS software is used for designing the metasurface antenna and different parameters like gain, reflection coefficient, radiation pattern and VSWR are analysed.
Published Version
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