4D printing is utilized to fabricate of thermo-deformable bow-tie antenna fulfill some special applications with limited space or changing property. In this paper, used manufacture nylon and carbon fiber laminated composite material. The installed on the surface material, energized heated, which causes thermal deformation substrate reconfigure feature. mechanism material explained, characterist...

This article presents the design, modeling, and fabrication of a printed log-periodic biconical dipole array antenna (PLPBDA) for electromagnetic compatibility (EMC) measurements. The proposed structure used bow tie-shaped dipoles instead typical to achieve size reduction 50% bandwidth enhancement 170% with help PCB technology. Furthermore, balanced feeding method modifications in dimensions we...

Abstract Effective municipal solid waste management requires rigorous risk assessment, evaluation and monitoring through a system. In this line, study aims first to highlight the importance of using Bow Tie analysis method as quantitative tool for optimal management, second demonstrate fact that reliability method’s results, depends entirely on uncertainty inherent in various estimates stakehol...

This paper presents the first low noise complementary metal oxide semiconductor (CMOS) deletedCMOS terahertz (THz) imager based on source modulation and in-pixel high-Q filtering. The 31 × 31 focal plane array has been fully integrated in a 0 . 13 μ m standard CMOS process. The sensitivity has been improved significantly by modulating the active THz source that lights the scene and performing o...

O processo de gestão riscos é uma importante ferramenta para que se possa aumentar a probabilidade sucesso em projetos. A Bow-Tie abordagem apontada pela ISO 31010:2012 o auxílio no avaliação riscos. Este instrumento tem sido usado setor industrial várias partes do mundo, assuntos diversos, contudo mostra assunto pouco explorado Brasil. Dado isso, presente artigo pretende por meio pesquisa bibl...

A novel single-layer unit cell structure is proposed to design a dual-band dual-linearpolarization reflectarray antenna with different beams for X and Ku bands. The unit cell structure is composed of a circular ring and two cross bow-tie structures combined by a circular patch. Five tunable geometric parameters can be optimized to achieve the required phase distributions of the reflectarray ant...