Preview

Journal of the Russian Universities. Radioelectronics

Advanced search

Experimental Study of K-Band Broadband Antenna Array Using Artificial Inhomogeneous Dielectric Structures

https://doi.org/10.32603/1993-8985-2019-22-5-33-41

Abstract

Introduction. As a result of the extensive development of broadband communication in the millimetre wave band, there has arisen a need for antenna systems with a high level of directivity and compact dimensions, capable of operating across wide frequency ranges. However, at present, few engineering solutions satisfy this demand.

Aim. To develop and study experimentally a K-band antenna array (AR) characterized by a high aperture efficiency and compact longitudinal dimensions.

Materials and methods. Computer simulations were performed using the CST Studio Suite software. Measurements were carried out using an Agilent E8363B PNA vector circuit analyzer. Radiation patterns were obtained by the method of near-field scanning.

Results. A K-band broadband antenna array configuration operating over the 18…26 GHz range was pro-posed. It was found that the period of the array equals 2.25 wavelengths at the highest operating frequency. In order to suppress grating lobes, an additional layer consisting of artificial inhomogeneous dielectric lenses was used. The dielectric material consisted of thin curly layers of sheet polyethylene terephthalate. Additionally, a hybrid configuration of feeding network was proposed, in which one part of the network was developed by means of printed two-wire lines, while the other part was achieved by means of rectangular waveguides. The proposed antenna array demonstrates VSWR of less than 2 and an aperture efficiency above 0.5, side and diffractive lobe levels not exceed –12 in the 18…26 GHz range. The total thickness of the configuration equals 50 mm or 4.3λmin. In order to ensure the compactness of the AR for wideband frequency applications, the thickness of the system can be reduced to 2.5λmin by excluding the waveguide part.

Conclusion. When compared with existing solutions, the proposed antenna has a simpler feed network, which yields better matching. High aperture efficiency is achieved in the wide frequency range by means of inhomogeneous dielectric lenses.

About the Authors

Anton M. Aleksandrin
Siberian Federal University
Russian Federation

Anton M. Aleksandrin, Master’s degree in Radio Engineering (2009), postgraduate, senior lecturer of Radio Engineering Department of the Siberian Federal University (SFU). The author of 20 scientific publications. Area of expertise: antennas and microwave devices; wideband antennas and antenna arrays.

79 Svobodny Str., Krasnoyarsk 660041, Russia



Yury P. Salomatov
Siberian Federal University
Russian Federation

Yury P. Salomatov, Cand. Sci. (Eng.) (1982), Professor (2013) of Department of Radio Engineering of the Siberian Federal University. The author of 240 scientific publications. Area of expertise: phased arrays; digital phased arrays; quasi-optical antennas and antenna arrays.

79 Svobodny Str., Krasnoyarsk 660041, Russia



References

1. Pi Z., Khan F. An Introduction to Millimeter-Wave Mobile Broadband Systems. IEEE Communications Magazine. 2011, vol. 49, iss. 6, pp. 101–107. doi: 10.1109/MCOM.2011.5783993

2. Cudak M., Ghosh A., Kovarik T., Ratasuk R., Thomas T. A., Vook F. W., Moorut P. Moving Towards MmwaveBased Beyond-4G (B-4G) Technology. 2013 IEEE 77th Vehicular Technology Conf. Dresden, Germany, 2–5 June 2013. Piscataway, IEEE, 2013, pp. 1–5. doi: 10.1109/VTCSpring.2013.6692638

3. Shaddadab R. Q., Mohammada A. B., Al-Gailaniac S. A., Al-hetarb A. M., Elmagzouba M. A. A Survey on Access Technologies for Broadband Optical and Wireless Networks. J. of Network and Computer Applications. 2014, vol. 41, pp. 459–472. doi: 10.1016/j.jnca.2014.01.004

4. Selva D., Golkar A., Korobova O., Lluch i Cruz I., Collopy P., de Weck O. L. Distributed Earth Satellite Systems : What is Needed to Move Forward ? J. of Aerospace Information Systems. 2017, vol. 14, no. 8, pp. 412–438. doi: 10.2514/1.I010497

5. Alexandrin A. M. Implementation of a Radially Inhomogeneous Medium and Construction of the Aperture Antennas on its Basis. 2013 Intern. Siberian Conf. on Control and Communications (SIBCON 2013). Krasnoyarsk, Russia, 12–13 Sept. 2013. Piscataway, IEEE, 2013. doi: 10.1109/SIBCON.2013.6693593

6. Alexandrin A. M., Ryazantsev R. O., Salomatov Y. P. Numerical Optimization of the Discrete Mikaelian Lens. 2016 Intern. Siberian Conf. on Control and Communications (SIBCON 2016). Moscow, Russia, 12–14 May 2016. Piscataway, IEEE, 2016. doi: 10.1109/SIBCON.2016.7491859

7. Aleksandrin A. M., Salomatov Yu. P. Wideband Antenna Array with the Use of Artificial Inhomogeneous Dielectric Structures. Doklady Tomskogo gosudarstvennogo universiteta sistem upravleniya i radioelektroniki [Proc. of Tomsk State University of Control Systems and Radioelectronics]. 2012, no. 2 (26), pp. 7–10. (In Russ.)

8. Munk B. A. Finite Antenna Arrays and FSS. Hoboken, NJ, USA: John Wiley & Sons, Inc, 2003, 392 p.

9. Gross F. B. Frontiers in Antennas: Next Generation Design & Engineering. New York, McGraw-Hill, 2011, 526 p.

10. Volakis J. L. Antenna Engineering Handbook. New York, McGraw-Hill, 2007, 1754 p. doi: 10.1002/9780471730071.ch1

11. Lee J. J., Livingston S., Nagata D. A Low Profile 10:1 (200–2000 MHz) Wide Band Long Slot Array. 2008 IEEE Antennas and Propagation Society Intern. Symp. San Diego, CA, USA, 5–11 July 2008. Piscataway, IEEE, 2008, vol. 1, pp. 61–64. doi: 10.1109/APS.2008.4619302

12. Youn H. S., Lee Y. L., Celik N., Iskander M. F. Design of a Cylindrical Long-Slot Array Antenna Integrated with Hybrid EBG/Ferrite Ground Plane. IEEE Antennas Wirelless Propagation Lett. 2012, vol. 11, pp. 180–183. doi: 10.1109/LAWP.2012.2186782

13. Yi J., de Lustrac A., Piau G.-P., Burokur S. N. Lenses Designed by Transformation Electromagnetics and Fabricated by 3D Dielectric Printing. 2016 IEEE Antennas Propag. Soc. Int. Symp. (APSURSI 2016). Fajardo, Puerto Rico, 26 June–1 July 2016. Piscataway, IEEE, 2016, pp. 1385–1386. doi: 10.1109/APS.2016.7696399

14. Kotljar V. V., Meljohin A. S. Abel Transform in Synthesis of Gradient Optical Elements. Computer Optics. 2002, no. 3, pp. 29–36. (In Russ.)

15. Triandafilov Ya. R., Kotlyar V. V. Photonic Crystal Mikaelian Lens. Computer Optics. 2007, vol. 31, no. 3, pp. 27–31. (In Russ.)


Review

For citations:


Aleksandrin A.M., Salomatov Yu.P. Experimental Study of K-Band Broadband Antenna Array Using Artificial Inhomogeneous Dielectric Structures. Journal of the Russian Universities. Radioelectronics. 2019;22(5):33-41. https://doi.org/10.32603/1993-8985-2019-22-5-33-41

Views: 843


Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.


ISSN 1993-8985 (Print)
ISSN 2658-4794 (Online)