A Multiband Patch Antenna with Embedded Square Split Ring Resonators in Non-Homogeneous Substrate

Shailesh M Rao, Prabhugoud I Basarkod

Abstract


The authors have attempted to influence the response of an embedded Square Split Ring Resonator (SSRR) in a stacked non-homogeneous substrate. The purpose is to produce multiband operations of a microstrip patch antenna. The highlighted factor is the effect of embedding an SSRR and the differing relative permittivity of the substrate on the side length of the SSRR. The analysis shows that a non-homogeneous dual substrate patch produces multiple bands compared to a single substrate patch antenna without any change of any parameter. A dual substrate antenna fabricated using FR4 and Rogers RT/Duroid 5880 copper clad sheets with a dimension of 85.6 X 54 X 0.908 mm3 (0.314λ0 X 0.198λ0 X 0.003λ0). The antenna resonates at 1.1, 2.45, 3.65 and 5.25 GHz in the L-, S- and C- bands. A comparison of simulated and measured results of a prototype is carried out in the article. The maximum measured gain is 5.48 dBi at 1.1 GHz and 4.025 dBi at 3.65 GHz. The measured bandwidth is 60 MHz (1.2%) at 5.25 GHz.

Keywords


Dual Substrate, Multiband, Permittivity, Square Split Ring Resonator



DOI: https://doi.org/10.11591/eei.v10i3.2556

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