102,215 research outputs found
G. B. Gerini. — Gli scrittori pedagogici italiani del secolo decimonono. — G. B. Paravia, 1910
No full textToutain J. G. B. Gerini. — Gli scrittori pedagogici italiani del secolo decimonono. — G. B. Paravia, 1910. In: Revue internationale de l'enseignement, tome 62, Juillet-Décembre 1911. pp. 528-529
Gerini (G.-B.). Gli scrittori pedagogici italiani del secolo decimosesto. Turin, Paravia, 1897
No full textDejob Charles. Gerini (G.-B.). Gli scrittori pedagogici italiani del secolo decimosesto. Turin, Paravia, 1897. In: La revue pédagogique, tome 32, Janvier-Juin 1898. pp. 471-472
Multi-layer integrated frequency selective surfaces for planar and conformal cylindrical phased arrays
No full textSuperfici selettive in frequenza multi-strato applicate a schiere cilindriche di antenne a sfasamento progressivo
No full textPhased arrays of rectangular apertures on conformal cylindrical surfaces: A multimode equivalent network approach
No full textIn this paper, we present an efficient integral equation formulation based on a multimode equivalent network (MEN) approach for the analysis of phased arrays on cylindrical surfaces using open-ended waveguide radiators. In addition to theory, experimental data are also presented showing very good agreement with simulated results. © 2004 IEEE
Multilayer array antennas with integrated frequency selective surfaces conformal to a circular cylindrical surface
No full textIn this paper, we present the analysis of periodic arrays on cylindrical surfaces using open-ended waveguide radiators loaded with radomes and frequency selective surfaces (FSS). The multilayer structure can be used to obtain a filtering behavior by properly choosing the radomes and the size of the FSS apertures. The effect of the gradual cutoff properties of the cylindrical waves is also addressed and the design of a number of filtering structures including one or two FSS is presented
CAD of multilayer comformal cylindrical arrays
No full textThe new trends in the communication market are demanding wider bandwidths and consequently higher frequencies and higher bit rates. The traditional hardware development, based on the manufacture and measurement of test components, is too expensive and time consuming. The availability of novel integrated design tools and manufacturing techniques is therefore an essential requirement. In this paper, we present an accurate and efficient tool for the analysis of multilayer conformal cylindrical arrays of open-ended waveguides, based on a multimode equivalent network (MEN) formulatio
Cylindrical Conformal Arrays Loaded With Frequency Selective Screens
No full textThe new trends in the communication market are demanding for wider bandwidths and consequently higher frequencies and higher bit rates. The traditional hardware development, based on the manufacture and measurement of test components, is too expensive and time consuming. The availability of novel integrated design tools and manufacturing techniques is therefore an essential requirement. In this paper, we present an accurate and efficient tool for the analysis of multilayer conformal cylindrical structures, based on a Multimode Equivalent Network (MEN) formulation
Frequency selective screens in multi-layer cylindrical antennas
No full textThe new trends in the communication market are demanding for wider bandwidths and consequently higher frequencies and higher bit rates. The traditional hardware development, based on the manufacture and measurement of test components, is too expensive and time consuming. The availability of novel integrated design tools and manufacturing techniques is therefore an essential requirement In this paper, we present an accurate and efïicient tool for the analysis of multilayer conformal cylindrical structures, based on a Multimode Equivalent Network (MEN) formulation
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