The judicious design of the electromagnetic boundary provides a crucial route to control light–matter interactions, and it is thus fundamental basic science practical applications. General approaches rely on manipulation bulk properties superstrate or substrate modification geometries. Due recent advent metasurfaces low-dimensional materials, can be flexibly featured with surface conductivity, ...

A simple thin film effective index analysis for first-order gratings in Si photonic waveguides is shown to provide highly accurate results reflected and transmitted power spectrums as long the waveguide remains single mode non-radiating. cover layer can be added grating region of a increase strength grating, modify transition losses from input region, and/or width reflectivity spectrum. For giv...

In this paper, a miniaturized skin implantable biocompatible microstrip antenna is proposed for biotelemetry applications at 2.4–2.48 GHz. The volume of the 42.68 mm3 with dimensions 8.2 × 6.94 0.75 mm3. Rogers RO Duroid 3010 0.25 mm thickness used designing antenna. This material also as superstrate to cover from both sides provide safety patients. Further, specific absorption rate (SAR) analy...

This paper presents a compact antenna based on two different metamaterial resonators, the E-shape resonators and interdigital suitable for biomedical implant applications. The proposed antennas operate in industrial, scientific, medical (ISM) bands frequency band of 2.4–2.5 GHz. integration (MTM) into design led to reduced size these gaining enhancement. overall is $$8\times 7\times 1.27{\mathr...

A ground-penetrating radar (GPR) antenna excites a perfectly electric conducting (PEC) inclusion buried inside the ground. One of the main problems in the detection of the PEC inclusion via external measurements is its poor scattering response due to attenuation. Hence, increasing the scattered power generated by the inclusion is of great practical interest. To this direction, the main purpose ...