Unique 3D metamaterial split ring resonator for wireless communication with high negative refractive index and for medium ratio

Gain Enhancement in Microstrip Patch Antenna With High Negative Refractive Index 3D-Metamaterial Inspired Superstrate for Wireless Applications

“…A microstrip-based superstrate with a high negative refractive index achieved a high gain. A single slab of 4×4 periodic structure of a 3D-MTM cells exhibits a high negative refractive index behavior are shown in previous understanding [30] and used as a superstrate results in enhancement of gain and bandwidth. It is well known that for an EM waves radiated from the patch antenna and free space are coupled and directed towards the direction of the patch antenna.…”

“…While, the parallel components L 3 and C 3 represent the selfinductance and capacitance of metallic viaâ Ȃ Źs, as seen in the equivalent circuit model, and are serially coupled to the inductance L 1 and L 2 of the dual split ring and square bracket structure. There is a coupling gap C m that exists between the top of the substrate and the dual split ring, which is physically evaluated and expressed as C m = ε r d h , where ε r is the permittivity of 3D-MTM substrate, d is the crosssectional area of the coupling gap, h is the height of the coupling gap between dual the top of the dielectric substrate and the dual split ring [30]. Hence, L 3 , C 3 , and C m do not affect the obtained desired frequency and these elements are not explicitly considered and their impact on calculating the resonant frequency was considered minimal.…”

Functional metamaterials for wireless antenna applications – A review abetted with patent landscape analysis

“… [ 76 ] 36 Electronically reconfigurable Stop band filter [ 77 ] 37 Surface Antenna Bandwidth boosted comm. [ 78 ] 38 As absorber Worldwide Interoperability for Microwave [ 79 ] 39 Novel 3D SRR High negative refractive index [ 80 ] 40 THz frequency Short range [ 81 ] 41 Antenna Long-term evolution handset [ 82 ] 42 Modulator Wireless multi-level [ 83 ] 43 MS band pass filter 5G [ 84 ] 44 Monopole Antenna Integral component comm. [ 85 ] 45 Ultra-wideband (UWB) MIMO High bandwidth comm.…”