Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Ilchenko, Mykhailo Ye."'
Publikováno v:
Radioelectronics and Communications Systems; Том 60, № 4 (2017); 173-180
This article shows the possibility in principle to design stripline comb filters with alternating signs of the coupling coefficients. The new feature of the stepped-impedance resonators of the quarterwave type was established. They provide the opposi
Publikováno v:
Radioelectronics and Communications Systems; Том 59, № 4 (2016); 173-178
There are considered constructions of microsized stripe delay filters, which are realized on a basis of ceramic materials with high dielectric permittivity. Delay time of non-minimal phase filters is 7–12 ns at frequencies of 1900 MHz with relative
Publikováno v:
Radioelectronics and Communications Systems; Том 58, № 6 (2015); 284-289
The relationship of the coupling coefficient of quarter-wave resonators operating on the main resonance frequency f0 as a function of different parameters of comb filters made of sections of symmetric striplines has been analyzed. It has been found o
Publikováno v:
Radioelectronics and Communications Systems; Том 57, № 5 (2014); 217-223
There are researched specificities of electromagnetic coupling coefficients at main and higher resonance frequencies between step-impedance resonators, fabricated from symmetric stripe transmission lines with open ends. It is shown, modification of s
Publikováno v:
Radioelectronics and Communications Systems; Том 55, № 11 (2012); 496-505
Analysis of microwave resonators with dual-mode oscillations is conducted. A new type of resonators is discovered in which dual-node oscillations are observed. It represents a half-wave resonator with a short-circuit in the middle part. The length of
Publikováno v:
Radioelectronics and Communications Systems; Том 55, № 8 (2012); 368-374
Influence analysis of U-shaped microstrip resonators’ parameters and parameters of dielectric substrate on resonant frequencies and unloaded quality-factor of resonators is conducted. Three kinds of U-shaped resonators are considered which differ i
Publikováno v:
Radioelectronics and Communications Systems; Том 54, № 3 (2011); 163-169
Research results for stripline bandpass filters with step-impedance resonators formed on Al2O3 (Alumina, polycor) and operating in the frequency band 1500–2500 MHz are presented in this article. Use of step-impedance resonators breaks repetition fa
Publikováno v:
Radioelectronics and Communications Systems; Том 53, № 8 (2010); 418-423
The question of increasing the tuning band of microstrip resonators that use ferroelectric capacitors for tuning in the region of increased electric lengths is considered which allows using them in the upper part of the centimeter band (Ku-band, K-ba
Publikováno v:
Radioelectronics and Communications Systems; Том 48, № 1 (2005); 22-27
A method is suggested for synthesis of asymmetrical filters with regard for dissipative loss. The generalized approach, free from many limitations inherent in traditional methods of filter synthesis, makes it possible to expand considerably the domai
Publikováno v:
Radioelectronics and Communications Systems; Том 47, № 6 (2004); 32-38
A new method is suggested for synthesis of passive symmetric filters based on prescribed value of dissipative loss and on a level of nonuniformity of amplitude-frequency response in the passband. The synthesis may also be conducted with regard for pr