Zobrazeno 1 - 10
of 96
pro vyhledávání: '"J, SVACINA"'
Publikováno v:
Radioengineering, Vol 20, Iss 1, Pp 295-298 (2011)
One of the problems in the design of powerline EMI filters is the uncertainty and ambiguity of their source/load impedances which results in breach of expected filter parameters in a real installation. The paper presents a simple technique for predic
Externí odkaz:
https://doaj.org/article/95d01c29856e4e9eb9136f29f2f2be18
Publikováno v:
Radioengineering, Vol 17, Iss 3, Pp 8-14 (2008)
This paper deals with mathematical simulations of EMI filters’ performance. These filters are commonly used for the suppressing of electromagnetic interference which penetrates through the power supply networks. The performance of these
Externí odkaz:
https://doaj.org/article/68d0779ae3c744dab4d407c6d6c9ae26
Publikováno v:
Radioengineering, Vol 17, Iss 3, Pp 15-18 (2008)
This paper deals with the approximate worst-case test method for testing the insertion loss of the EMI filters. The systems with 0.1 Ω and 100 Ω impedances are usually used for this testing. These systems are required by the internation
Externí odkaz:
https://doaj.org/article/4089bf3db58f43eea06ae8094e452324
Autor:
J. Svacina, J. Drinovsky
Publikováno v:
Radioengineering, Vol 15, Iss 4, Pp 16-21 (2006)
This paper deals with the performance problem of the EMC filters. The core of this problem in EMC filter is the uncertainty of impedances that are connected to the input and output of a filter. In addition, an estimation technique is presented that g
Externí odkaz:
https://doaj.org/article/82bcdccf3d3f454285dc9954df459206
Autor:
J. Svacina, V. Sadek
Publikováno v:
Radioengineering, Vol 13, Iss 3, Pp 32-36 (2004)
The goal of this work is to introduce a new, maybe complicated butin the final result mathematically simplest model of the coplanar stripline (CPS). In contrast to the usual method based on ellipticalintegrals the simplest circular inversion is appli
Externí odkaz:
https://doaj.org/article/cb513a0504b34296ae046240b4ea89ea
Akademický článek
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Autor:
J. Svacina
Publikováno v:
Microwave and Optical Technology Letters. 48:396-399
The paper contains an investigation of microstrips with finite-width ground plane. The conformal mapping method and a new method of the so-called moving perfect electric wall (MPEW) are used to obtain simple analytical relations for quasi-TEM paramet
Autor:
J. Svacina
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 47:1826-1829
This paper presents a new analytical model of two forms of multilayered slotline: a double-layer sandwich form and a slotline on a double-layer composite substrate. The conformal mapping method combined with some semiempirical approaches is used to o
Autor:
J. Svacina
Publikováno v:
Microwave and Optical Technology Letters. 36:63-65
A set of closed form relations is proposed for the analysis of two types of width-limited microstrip lines using a conformal mapping method. New closed-form equations are derived for microstrip lines with rectangular and/or trapezoidal shaped dielect
Autor:
J. Svacina
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 40:769-772
Multilayer microstrip transmission lines are investigated. The conformal mapping method is used to obtain simple analytical relations for the filling factors and the effective permittivity of two fundamental types of three-layer microstrips. Numerica