Book
2018 International Conference on Actual Problems of Electron Devices Engineering (APEDE'2018)
In this paper, a model describing the discrete interaction of a traveling-wave tube (TWT) with resonator slow-wave structures (SWSs) is considered. The problems of development of TWT are analyzed, and the approaches to finding solutions for these problems are considered. When simulating a TWT section, a chain of sextapoles with combined field and current terminals is used. The developed model served as a basis for the development of the software complex VEGA which will be used later for the design of TWT in microwave and EHF bands.
The Asia-Pacific Conference on Antennas and Propagation (APCAP) is an international forum for the exchange of information on the progress and recent advancements in the research and development of innovative antenna technology and radio wave propagation. APCAP has been successfully inaugurated in Singapore in 2012 and held in Chiangmai in 2013, Harbin in 2014, Bali Island in 2015, Kaohsiung in 2016, and Xi’an in 2017 and Auckland in 2018. It will be held in Korea for the first time. APCAP 2019 will offer a rich scientific program of the highest quality with the keynote and invited speakers from all over the world and provide a broad forum of exchange for both academia and industry alike, with the aim of fostering the collaboration between them. The conference will cover a wide range of topics related to antenna technology, wave propagation, and electromagnetic theory. Prospective authors are invited to submit original contributions on their latest research findings and technology applications.
In this paper, a model describing the discrete interaction of a traveling-wave tube (TWT) with resonator slow-wave structures (SWSs) is considered. The problems of development of TWT are analyzed, and the approaches to finding solutions for these problems are considered. When simulating a TWT section, a chain of sextapoles with combined field and current terminals is used. The developed model served as a basis for the development of the software complex VEGA which will be used later for the design of TWT in microwave and EHF bands.
Microwave devices designed on the basis of multipole lenses (ring electromagnetic structures using resonant sections of slow-wave structures) are analyzed. The possibility of development on the basis of these lenses of a low-noise amplifier and a microwave multiplier, which ensure long-term interaction of the electron beam and the transversely extended electromagnetic field with continuous extraction of energy, is shown.
The Asia-Pacific Microwave Conference (APMC) is the largest microwave event of its kind in the Asia-Pacific region. APMC provides a broad forum for participants from both academia and industries to exchange information, share research results, and discuss collaborations in the fields of not only microwave but also millimeter wave and even to the far infrared and optical waves. The series of APMC began at New Delhi, India in 1986 and APMC 2018 is going to be the commemorable 30th conference. APMC 2018 will be held at Kyoto International Conference Center (ICC Kyoto), Kyoto, Japan, on November 6-9, 2018. Commemorating its 30th conference, the APMC 2018 Steering Committee plans to hold special events and is privileged to welcome all the colleagues around the world in this special occasion.
2019 International Siberian Conference on Control and Communications (SIBCON). Proceedings
Generalized error-locating codes are discussed. An algorithm for calculation of the upper bound of the probability of erroneous decoding for known code parameters and the input error probability is given. Based on this algorithm, an algorithm for selection of the code parameters for a specified design and input and output error probabilities is constructed. The lower bound of the probability of erroneous decoding is given. Examples of the dependence of the probability of erroneous decoding on the input error probability are given and the behavior of the obtained curves is explained.
The dynamics of a two-component Davydov-Scott (DS) soliton with a small mismatch of the initial location or velocity of the high-frequency (HF) component was investigated within the framework of the Zakharov-type system of two coupled equations for the HF and low-frequency (LF) fields. In this system, the HF field is described by the linear Schrödinger equation with the potential generated by the LF component varying in time and space. The LF component in this system is described by the Korteweg-de Vries equation with a term of quadratic influence of the HF field on the LF field. The frequency of the DS soliton`s component oscillation was found analytically using the balance equation. The perturbed DS soliton was shown to be stable. The analytical results were confirmed by numerical simulations.
Radiation conditions are described for various space regions, radiation-induced effects in spacecraft materials and equipment components are considered and information on theoretical, computational, and experimental methods for studying radiation effects are presented. The peculiarities of radiation effects on nanostructures and some problems related to modeling and radiation testing of such structures are considered.
This volume presents new results in the study and optimization of information transmission models in telecommunication networks using different approaches, mainly based on theiries of queueing systems and queueing networks .
The paper provides a number of proposed draft operational guidelines for technology measurement and includes a number of tentative technology definitions to be used for statistical purposes, principles for identification and classification of potentially growing technology areas, suggestions on the survey strategies and indicators. These are the key components of an internationally harmonized framework for collecting and interpreting technology data that would need to be further developed through a broader consultation process. A summary of definitions of technology already available in OECD manuals and the stocktaking results are provided in the Annex section.