An Implementation of Interactive Application for the Synthesis of Communication Systems with Antenna Arrays

Introduction. Modern radar and communications systems contain phased array antennas. One of the synthesis problems of such systems is the formulation of requirements for components, modules and units which are comprised in it. To solve this problem, one needs to build a coverage area and to analyze an impact of characteristics of its parts. The quality of analysis and synthesis of such complex systems can be enhanced by use of interactive data visualization, which requires a fairly quick calculation of characteristics.

Aim. Development of an interactive application for increasing the synthesis capabilities of communication systems containing antenna arrays and for improving the characteristics of systems of interest.

Materials and methods. To accelerate the calculation of radiation patterns, the antenna array pattern in a form suitable for the fast Fourier transform algorithm was used. To find the required amplitude-phase distributions, Kotelnikov series expansion and genetic algorithm were used.

Results. In the developed application, amplitude-phase distribution, directivity pattern of a linear equidistant array and coverage area were displayed. An interactive change of the amplitude-phase distribution at radiation elements and synthesized radiation patterns in given directions were possible. With introduction of changes to the radiation pattern, the amplitude-phase distribution and the array radiation pattern itself changed in directions other than the specified one. The coverage area was rebuilt when any of the characteristics changes. If necessary, the coverage area display could be turned off. The paper provides an example of using the application in the synthesis of a communication system with an aircraft.

Conclusion. The use of the developed application allows one to extend the capabilities and significantly reduce the analysis and synthesis time of the communication secondary radar systems with antenna arrays too. Besides, the application is used for training specialists for industry enterprises.

1. AWR Design Environment. Available at: https://www.awr.com/software/products/awr-designenvironment (accessed 12.04.2020)

2. Software - PathWave Advanced Design System (ADS). Keysight. Available at: https://www.keysight.com/ru/ru/products/software/pathwave-design-software/pathwaveadvanced-design-system.html (accessed 12.04.2020)

3. Antenna Magnus. Antenna design software. Available at: https://www.3ds.com/products-services/simulia/products/antenna-magus/ (accessed 12.04.2020)

4. Vasil'ev E. Yu., Kuz'min S. V. The Concept of Software for the Synthesis of Radiation Patterns of Phased Antenna Arrays Taking into Account the Radar Equation in Combined Radio Communication Systems and Secondary Radar. VI intern. scien.-tech. and scien.-method. conf. "Actual Problems of Information and Telecommunications in Science and Education" (APINO 2017). SPb., SPbGUT, 2017, vol. 1, pp. 116‒120. (In Russ.)

5. Patterson W. L. Advanced Refractive Effects Prediction System (AREPS). 2007 IEEE Radar Conf. Boston, MA, 17–20 April 2007. Piscataway, IEEE, 2007, pp. 891‒895. doi: 10.1109/RADAR.2007.374337

6. AGI Engineering Tools. Available at: http://www.agi.com/products/engineering-tools (accessed 09.04.2020)

7. Specialized software. CAD "ALBATROS". Available at: http://www.spacecenter.ru/Software.htm (accessed 09.04.2020)

8. Mathworks Phased Array System Toolbox. Available at: https://www.mathworks.com/products/phasedarray.html (accessed 09.04.2020)

9. Zhegalov A. N., Kuz'min S. V., Morozov A. N., Rivkin M. I., Siluyanov I. I. Application of the Matrix of Mutual Relations when Setting up the PAR. V All-Russ. Scien. and Tech. Conf. "Radar and Radio Communication", Moscow, 21–25 November 2011. IRE im. V. A. Kotel'nikova RAN, Мoscow, 2011, pp. 216–220. (In Russ.)

10. Korotetskii E. V., Shitikov A. M., Denisenko V. V. Methods of Phased Array Antenna Calibration. Radioengineering, 2013, no. 5, pp. 95‒104. (In Russ.)

11. Zelkin E. G., Kravchenko V. F. Zadachi sinteza antenn i novye metody ikh resheniya [Antenna Synthesis Problems and New Methods for Solving Them]. Мoscow, IPRZhR, 2002, 72 p. (In Russ.)

12. Brown A. D. Electronically Scanned Arrays MATLAB Modeling and Simulation. Boca Raton, NW, CRC Press, 2012, 229 p.

13. Vendik O. G., Kozlov D. S. Phased Antenna Array with a Sidelobe Cancellation for Suppression of Jamming. IEEE Antennas and Wireless Propagation Letters. 2012, vol. 11, pp. 648‒650. doi: 10.1109/LAWP.2012.2203780

14. Vendik O. G., Kalinin S. A., Kozlov D. S. Phased Array Antenna with Controlled Shape of the Directional Pattern. J. of Tech. Physics. 2013, vol. 83, no. 10, pp. 117‒121. (In Russ.)

15. Khansen R. S. Fazirovannye antennye reshetki [Phased Array Antennas]. 2nd ed. Мoscow, Tekhnosfera, 2012, 560 p. (In Russ.)

16. Drabowitch S., Papiernik A., Griffiths H. D., Encinas J., Smith B. L. Modern Antennas. 2nd ed. Dordrecht, The Netherlands, Springer, 2005, 710 p.

17. Tural'chuk P.A., Vendik O. G., Vendik I. B. Expansion of the Main Beam of the Dolph–Chebyshev Lattice Using the Kotelnikov Function Expansion. Microwave Electronics and Microelectronics. 2018, vol. 1, no. 1, pp. 213‒216. (In Russ.)

18. Litvinov O. S., Murod'janc D. V., Boruta V. S., Vintajkin B. E. Suppression of Noise Interference in Adaptive Array Antennas via Neural Networks Algorithms. Antennas. 2018, no. 2, pp. 40–44. (In Russ.)