Zobrazeno 1 - 10
of 31
pro vyhledávání: '"P. Vsetula"'
Publikováno v:
Radioengineering, Vol 24, Iss 3, Pp 688-694 (2015)
In the paper, we apply tuning-space mapping to multi-objective synthesis of a filtering antenna. The antenna is going to be implemented as a planar dipole array with serial feeding. Thanks to the multi-objective approach, we can deal with conflicting
Externí odkaz:
https://doaj.org/article/494d5168918f4e5b8656bff48ccf9a9e
Publikováno v:
Radioengineering, Vol 20, Iss 4, Pp 790-803 (2011)
In the paper, we try to provide a comprehensive look on a multi-objective design of radiating, guiding and reflecting structures fabricated both from special materials (semiconductors, high-impedance surfaces) and conventional ones (microwave substra
Externí odkaz:
https://doaj.org/article/800a168c407448c5b63e471bbf407bc3
Autor:
P. Vsetula, Z. Raida
Publikováno v:
Radioengineering, Vol 19, Iss 4, Pp 633-638 (2010)
Planar Sierpinski monopole exhibits a multi-band behavior, but its parameters in operation frequency bands are not optimal. By mapping the Sierpinski monopole on a conical surface, a symmetrical three-dimensional (3-D) structure is obtained. In this
Externí odkaz:
https://doaj.org/article/5b3a3138d4d543b9a15a40735810458c
Akademický článek
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Autor:
P. Vsetula, Zbynek Raida
Publikováno v:
Microwave and Optical Technology Letters. 55:1243-1247
In this article, we present a study dealing with the design, optimization, and manufacturing of different versions of a broadband monopole antenna with a convex conical reflector. These antennas are created by a wire monopole that is placed into the
Publikováno v:
2014 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC).
Autor:
Zbynek Raida, V. Rericha, P. Vsetula, Tomas Urbanec, D. Wolansky, Tomas Mikulasek, Jan Puskely, Jan Bartyzal
Publikováno v:
ICECom 2013.
In the paper, we describe a concept of an experimental wireless link operating in frequency bands 71 to 76 GHz and 81 to 86 GHz. The link is based on the converter FC1003E/03 produced by Sivers IMA. For the link, a conventional horn antenna and a pla
Autor:
P. Vsetula, Zbynek Raida
Publikováno v:
2013 International Conference on Electromagnetics in Advanced Applications (ICEAA).
In this paper, we present two approaches to the synthesis of a required frequency dependency of gain and reflection coefficient of a dipole antenna array. In the first approach, we assume that the transmission line is included into the antenna array
Publikováno v:
2012 6th European Conference on Antennas and Propagation (EUCAP).
In this paper, we discuss three approaches to the synthesis of a required frequency dependency of a gain of an antenna. The first approach is turned on the optimization of a resonant series-fed patch array in CST Microwave Studio. Next, a possibility
Autor:
Zbynek Raida, P. Vsetula
Publikováno v:
2011 International Conference on Electromagnetics in Advanced Applications.
In the paper, the design, simulation, optimization and manufacturing of different versions of an antenna, which transforms the impedance of the coaxial line to the impedance of the open space via the circular waveguide, are presented. The numerical m