Mutual Coupling and Cross Polarization Reduction of a Compact Microstrip Array Antenna Using a Pair of Parasitic Resonators

Document Type : Original Article

Author

Assistant Professor, Department of Telecommunication Electrical Engineering, Faculty of Engineering, Shahid Madani University of Azerbaijan, Tabriz, Iran

Abstract

In this article an efficient multifunctional method is presented to reduce mutual coupling and cross polarization, simultaneously in a 2-element H-plane array antenna in a compact format. In this approach, a pair of parasitic microstrip elements is placed near the radiating edges in two radiation patches, creating a new field coupling path opposite to the main coupling, leading to a significant increase in isolation. In addition, due to the structure and position of these parasitic strips, the near field resulting from cross currents on the patches is significantly neutralized, leading to the elimination of cross polarization and thus improving the polarization purity. Furthermore, this method can prevent the increase of the cross polarization due to the error of probe position on the patches up to 8 dB. In order to validate the proposed method, an optimal sample is fabricated and measured and the results are compared to those of simulations. The measurements show more than 32dB isolation, over 30dB impedance matching, and about 38dB (reduced by at least 10dB) cross polarization, which are in good agreement with the simulations. The advantages of this design are that the gain and radiation efficiency are not decreased and the reduction of the resonance frequency is about 150 MHz which can decrease the overall size of the array. Finally, a comparison with novel designs and the related discussions are presented.

Keywords

References

  • Haghian, S. H. MohseniArmaki, and M. Kazerooni, “Design, Simulation and Realization of S band Circular Polarization Microstrip Array Antenna,” Applied. Electromagnetic, no. 1, pp. 49-54, 2015. (In Persian)##
  • Safari Dehnavi, S. M. J. Razavi, and S. H. MohseniArmaki, “Beam Width Expansion of Microstrip Array Antenna by Wide Angle Impedance Matching Layer,” Applied. Electromagnetic, vol. 6, no. 1, pp. 31-39, 2018. (In Persian)##

[3]  R. Zaker, “Design of a Very Closely-spaced Antenna Array with a High Reduction of Mutual Coupling Using Novel Parasitic L-shaped Strips,” International Journal of RF and Microwave Computer Aided Engineering, vol. 28, no. 9, p. e21422, 2018.##

 

[4]  H. Xu, S. S. Gao, H. Zhou, H. Wang, and Y. Cheng, “A Highly Integrated MIMO Antenna Unit: Differential/common Mode Design,” IEEE Transactions on Antennas and Propagation, vol. 67, no. 11, pp. 6724-6734, 2019.##

[5]  K.-L. Wu, C. Wei, X. Mei, and Z.-Y. Zhang, “Array-antenna Decoupling Surface,” IEEE Transactions on Antennas and Propagation, vol. 65, no. 12, pp. 6728-6738, 2017.##

[6]  K. Wei, J.-Y. Li, L. Wang, Z.-J. Xing, and R. Xu, “Mutual Coupling Reduction by Novel Fractal Defected Ground Structure Bandgap Filter,” IEEE transactions on antennas and propagation, vol. 64, no. 10, pp. 4328-4335, 2016.##

[7]  X. Zhao, S. P. Yeo, and L. C. Ong, “Decoupling of Inverted-F Antennas with High-order Modes of Ground Plane for 5G Mobile MIMO Platform,” IEEE Transactions on Antennas and Propagation, vol. 66, no. 9, pp. 4485-4495, 2018.##

[8]  M. Li, L. Jiang, and K. L. Yeung, “A General and Systematic Method to Design Neutralization Lines for Isolation Enhancement in MIMO Antenna Arrays,” IEEE Transactions on Vehicular Technology, vol. 69, no. 6, pp. 6242-6253, 2020.##

[9]  K.-D. Xu, H. Luyen, and N. Behdad, “A Decoupling and Matching Network Design for Single-and Dual-Band Two-Element Antenna Arrays,” IEEE Transactions on Microwave Theory and Techniques, vol. 68, no. 9, pp. 3986-3999, 2020.##

 

[10]   S. Gupta, Z. Briqech, A. R. Sebak, and T. A. Denidni, “Mutual-coupling Reduction Using Metasurface Corrugations for 28 GHz MIMO Applications,” IEEE Antennas and Wireless Propagation Letters, vol. 16, pp. 2763-2766, 2017.

 

[11]   Y.-F. Cheng, X. Ding, W. Shao, and B.-Z. Wang, “Reduction of Mutual Coupling Between Patch Antennas Using a Polarization-conversion Isolator,” IEEE Antennas and Wireless Propagation Letters, vol. 16, pp. 1257-1260, 2016.

 

[12]   M. Li, B. G. Zhong, and S. Cheung, “Isolation Enhancement for MIMO Patch Antennas Using Near-field Resonators as Coupling-mode Transducers,” IEEE Transactions on Antennas and Propagation, vol. 67, no. 2, pp. 755-764, 2018.

[13]   M. I. Pasha, C. Kumar, and D. Guha, “Mitigating High  Cross-Polarized Radiation Issues Over the Diagonal Planes of Microstrip Patches,” IEEE Transactions on Antennas and Propagation, vol. 68, no. 6, pp. 4950-4954, 2019.##

[14]   M. I. Pasha, C. Kumar, and D. Guha, “Simultaneous Compensation of Microstrip Feed and Patch by Defected Ground Structure for Reduced Cross-polarized Radiation,” IEEE Transactions on Antennas and Propagation, vol. 66, no. 12, pp. 7348-7352, 2018.##

[15]   X. Zhang and L. Zhu, “Patch Antennas with Loading of a Pair of Shorting Pins Toward Flexible Impedance Matching and Low Cross Polarization,” IEEE Transactions on Antennas and Propagation, vol. 64, no. 4, pp. 1226-1233, 2016.##

[16]   C. K. Ghosh, R. Hazra, A. Biswas, A. Bhattachrjee, and S. Parui, “Suppression of Cross-polarization and Mutual Coupling Between Dual Trace Dual Column Coaxial Microstrip Array Using Dumbbell-shaped Resonator,” Microwave and Optical Technology Letters, vol. 56, no. 9, pp. 2182-2186, 2014.##

17]   H. Saeidi-Manesh and G. Zhang, “High-isolation, Low Cross-polarization, Dual-polarization, Hybrid Feed Microstrip Patch Array Antenna for MPAR Application,” IEEE Transactions on Antennas and Propagation, vol. 66, no. 5, pp. 2326-2332, 2018.##

[18]   S. Liu, D. Yang, Y. Chen, X. Zhang, and Y. Xiang, “High Isolation and Low Cross-Polarization of Low-Profile Dual-Polarized Antennas via Metasurface Mode Optimization,” IEEE Transactions on Antennas and Propagation, Doi: 10.1109/TAP.2020.3030107.##

[19]   C. A. Balanis, Antenna theory: analysis and design, third ed. John wiley & sons, 2005.##

[20]  Ch. H. See, R. A. Abd-Alhameed, Z. Z. Abidin, N. J. McEwan, and P. S. Excell, “Wideband Printed MIMO/diversity Monopole Antenna for WiFi/WiMAX Applications,” IEEE Transactions on Antennas and Propagation, vol. 60, no. 4, pp. 2028-2035, 2012.##

Files

History

  • Receive Date: 29 December 2020
  • Revise Date: 22 February 2021
  • Accept Date: 03 July 2021
  • Publish Date: 23 September 2021

Share

How to cite

Statistics