Beam forming network on the base of non-identically coupled transmission lines

Cover Page

Cite item

Full Text

Open Access Open Access
Restricted Access Access granted
Restricted Access Subscription Access

Abstract

Beam forming network as a system of parallel coupled transmission lines with different coupling coefficients is proposed. The beam forming network feeds linear array that in its turn forms radiation pattern with sector shape. An eigenwave problem for an infinite system of infinite transmission lines is solved in frame of coupled wave theory. Also a problem of eigenwave excitation is solved in frame of the same theory. Relations describing wave amplitudes in output plane are obtained. Directivity multiplier of a linear radiating array that excited by the waves in the output plane is considered. The analysis demonstrates that application of new type beam forming network sufficiently improves radiation pattern shape in compare with radiation pattern of the array with beam forming network with identically coupled transmission lines.

About the authors

S. Е. Bankov

Kotel’nikov Institute of Radioengeneering and Electronics RAS

Author for correspondence.
Email: sbanlkov@yandex.ru
Russian Federation, Mokhovaya St., 11, build. 7, Moscow, 125009

References

  1. Cкобелев С.П. Фазированные антенные решетки с секторными парциальными диаграммами направленности. М.: Физматлит, 2010.
  2. Bankov S.E., Bugrova T.I. // Microwave and Optical Technology Lett. 1993. V. 6. P. 782.
  3. Банков С.Е., Калошин В.А., Фролова Е.В. // Журн. радиоэлектроники. 2009. № 3. http://jre.cplire.ru/jre/mar09/1/text.html
  4. Банков С.Е., Грачев Г.Г., Дупленкова М.Д. // РЭ. 2012. Т. 57. № 6. С. 613.
  5. Банков С.Е. // РЭ. 2009. Т. 54. № 10. С. 1157.
  6. Унгер Г.Г. Оптическая связь. М.: Связь. 1979.
  7. Амитей Н., Галиндо В., Ву Ч. Теория и анализ фазированных антенных решеток. М.: Мир. 1974.
  8. Унгер Х.Г. Планарные и волоконные оптические волноводы. М.: Мир, 1980. С. 231.
  9. Cкобелев С.П. // Радиотехника. 2013. № 5. С. 74.

Supplementary files

Supplementary Files
Action
1. JATS XML
Download
2. Fig. 1. The structure under study.

Download (90KB)
Indexing metadata
3. Fig. 2. The SLP system.

Download (57KB)
Indexing metadata
4. Fig. 3. Excitation of the SLP system.

Download (74KB)
Indexing metadata
5. Fig. 4. Distribution of wave amplitudes in the DOS channels.

Download (83KB)
Indexing metadata
6. Fig. 5. Determination of quality indicators.

Download (97KB)
Indexing metadata
7. Fig. 6. Dependence of the UBL on the dimensionless coupling coefficient .

Download (84KB)
Indexing metadata
8. Fig. 7. Dependence of the main beam half-width on the dimensionless coupling coefficient .

Download (90KB)
Indexing metadata
9. Fig. 8. Dependence of the steepness of the slope of the directivity multiplier S on the dimensionless coupling coefficient .

Download (75KB)
Indexing metadata
10. Fig. 9. Dependence of the UBL on the parameter b.

Download (74KB)
Indexing metadata
11. Fig. 10. Dependence of the main beam half-width on the parameter b.

Download (84KB)
Indexing metadata
12. Fig. 11. Dependence of the steepness of the slope of the directivity multiplier S on the parameter b.

Download (74KB)
Indexing metadata
13. Fig. 12. Dependence of the UBL on the dimensionless period of the grating.

Download (78KB)
Indexing metadata
14. Fig. 13. Dependence of the main beam half-width on the dimensionless period factor .

Download (76KB)
Indexing metadata
15. Fig. 14. Dependence of the steepness of the slope of the directivity multiplier S on the dimensionless period factor .

Download (72KB)
Indexing metadata
16. Fig. 15: Directivity multipliers of the DOS with unequal (1) and equal (2) links and staggered single stage DOS (3).

Download (131KB)
Indexing metadata
17. Fig. 16. Utilization factor of the grating element.

Download (141KB)
Indexing metadata

Copyright (c) 2025 Russian Academy of Sciences