350 rub
Journal Radioengineering №12 for 2009 г.
Article in number:
Synthesis of a Miniature Microwave Impedance Transformer on Mixed Lumped and Distributed Elements
Keywords: Impedance transformer optimization synthesis uniform transmission line
Authors:
N.N. Bazlov, B.M. Kats, V.P. Meschanov, L.V. Shikova
Abstract:
The results of investigating miniature impedance transformers on cascaded uniform transmission lines with shunt lumped capacitors are presented. Optimum parameters of the impedance transformers with Сhebyshev-s characteristics of voltage-standing-wave ratio are received. The results of experimental investigation are presented. The considered devices are significantly shorter when compared with the correspondent impedance transformers based on quarter-wave transmission line sections of classic structure. The investigated devices by their electrical and technological properties take an intermediate position between classic quarter-wave impedance transformers and transformers with lumped parameters. The application of the proposed transformers allows one to reduce the dimensions as compared to the impedance transformers on stepped transmission lines. On the other hand, it allows one to solve a complex technological problem of manufacturing lumped inductances of high Q-factor on the basis of elements with lumped parameters.
Pages: 19-25
References
  1. Cohn S. B. Optimum design of stepped transmission line transformers // IRE Trans. Microwave Theory Tech. 1955. V. 3. № 3. P. 16 -21.
  2. Collin R. E. Theory and design of wide-band multisection quarter-wave transformers // Proc. IRE. 1955. V. 43. № 2. P. 179 -185.
  3. Riblet H. J. General synthesis of quarter-wave impedance transformers // IRE Trans. Microwave Theory Tech. 1957. V. 5. № 5. P. 36 -43.
  4. Young L. Optimum quarter-wave transformers // IRE Trans. Microwave Theory Tech. 1960. V. 8. № 9. P. 478-482.
  5. Matthaei G. L. Short-step chebyshev impedance transformers // IEEE Trans. MicrowaveTheoryTech.1966. V. 14. № 8. P. 372 - 383.
  6. Мещанов В.П., Разукова И.А., Тупикин В.Д. Новая структура малогабаритных ступенчатых трансформаторов активных волновых сопротивлений // Радиотехника и электроника. 1991. Т. 36. № 8. С. 1492 -1496.
  7. Iceno N. Design method of impedance transformer composed coaxial lines // Tech.Rept.Elec. Commun / Lab. 1952. V. 259. P. 1 -32.
  8. Mayer K. Synthesis von optimum multisection quarter-wave transformers with Stubs //AEU. 1971. V. 25. № 2. P. 62 -68.
  9. Levy R. Synthesis of mixed lumped and distributed impedance-transforming filters // IEEE Trans. Microwave Theory Tech. 1972. V. 20. № 3. P. 223-233.
  10. Van der Walt P.W. Short-step-stub chebyshev impedance transformers // IEEE Trans. Microwave Theory Tech.1986. V. 34. №8. P. 863-868.
  11. Фельдштейн А.Л., Явич Л.Р. Синтез четырехполюсников и восьмиполюсников на СВЧ. М.: Связь. 1971. 388 c.
  12. Пшеничный Б. И., Данилин Ю.М. Численные методы в экстремальных задачах. М.: Наука. 1975. 320c.