Results 11 to 20 of about 270,101 (314)
A Wide Frequency Scanning Printed Bruce Array Antenna with Bowtie and Semi-Circular Elements
Sensors, 2020 A printed edge-fed counterpart of the wire Bruce array antenna, for frequency scanning applications, is presented in this paper. The unit-cell of the proposed antenna consists of bowtie and semi-circular elements to achieve wide bandwidth from below 22 ...
Zeeshan Ahmed +2 more
doaj +1 more source
Mathematics, 2021 Composite materials consisting of a dielectric matrix with conductive inclusions are promising in the field of micro- and optoelectronics. The properties of a nanocomposite material are strongly influenced by the characteristics of the substances ...
Sergey Korchagin +6 more
doaj +1 more source
A new periodic interdigital structure - three dimensional realization based on two dimensional design [PDF]
Journal of the European Optical Society-Rapid Publications, 2012 A novel design concept of new periodic interdigital structure for total transmission is proposed from the perspective of electromagnetic (EM) field in this paper.
Ning H., Wang J., Xiong Q., Mao L.
doaj +1 more source
Formulas for Fundamental Natural Frequency of Plane Periodic Truss
Structural Mechanics of Engineering Constructions and Buildings, 2023 This study considers a plane statically determinate truss with double lattice structure and without a lower chord. Well-known versions of this design are Fink and Bollman trusses.
Mikhail N. Kirsanov
doaj +1 more source
IEEE Open Journal of Antennas and Propagation, 2020 Functional post-wall waveguides and waveguide based compact passive circuits - namely bandpass filters - that are formed by introducing additional metallic or dielectric posts inside the post-wall waveguide are analyzed.
Arkadi Akopian +8 more
doaj +1 more source
Frequency selective surface with complex topology elements
Вісник Харківського національногоуніверситету імені В.Н. Каразіна. Серія: Радіофізика та електроніка, 2021 Relevance: The solution of specific problems in modern technology of microwave and UHF ranges, such as the implementation of reducing the radar signature of objects, spatial frequency-selective filters, reflectors requires the development and creation of
D. V. Mayboroda, S. A. Pogarsky
doaj +1 more source
Analytical method of optical wave behavior studying in nonlinear medium with periodically arranged conducting nanofilms [PDF]
Известия высших учебных заведений: Прикладная нелинейная динамика, 2023 The purpose of this work is to build the analytical model of the behavior of a harmonic wave in a nonlinear optical medium with periodically arranged nanofilms. Methods.
Volkova, Svetlana Anatolena +5 more
doaj +1 more source
Characteristics of Resonantly-Guided Modes in Microstructured Optical Fibers
Photonics, 2014 Modal characteristics of resonantly-guided modes (RGMs) in microstructured fibers were investigated through numerical simulation. The modes of interest are supported in a class of fibers consisting of a circularly arranged periodic array of high index ...
Yasuo Ohtera +2 more
doaj +1 more source
Non-Reciprocal MEMS Periodic Structure
Actuators, 2023 In recent years, active periodic structures with in-time modulated parameters have drawn ever-increasing attention due to their peculiar (and sometimes exotic) wave propagation properties.
Jacopo Marconi +2 more
doaj +1 more source
Locally periodic unfolding method and two-scale convergence on surfaces of locally periodic microstructures [PDF]
, 2015 In this paper we generalize the periodic unfolding method and the notion of two-scale convergence on surfaces of periodic microstructures to locally-periodic situations.
Ptashnyk, Mariya +2 more
core +1 more source