The Flat-Topped Pattern Synthesis of the Multi-Feed Reflector Antenna

Document Type : Original Article

Authors

1 PhD Student, Iran Telecommunication Research Center, Tehran, Iran

2 Assistant Professor, Research Institute of Communication and Information Technology, Research Institute of Communication Technology, Tehran, Iran

Abstract

Numerous researches have been performed on the reflector antenna for realizing beam-shaping
using level-shaping. However, little study has been done for realizing the shaped beam through
the multi-feed approach. The main goal of this paper is to provide a synthesis procedure for
realizing the flat-topped pattern in reflector antennas using the multi-feed approach. In this way,
based on the genetic algorithm (GA) and utilizing the physical optic (PO) method, the excitation
coefficient of the feeding array is synthesized to achieve the desired pattern. Furthermore, in this
paper, an efficient method for reducing the computational time of PO integrals is introduced. In
this way, the 3D PO integrals are mapped to 2D integrals; which results in about 30%
computational time reduction. The proposed procedure is employed to realize a flat-topped
pattern in the angular scope of -20o to +20o and the radiation characteristics are compared with
those presented through the shaped reflector method in the literature. Results show that the
multi-feed approach obtains the desired beam more accurately.

Keywords

Smiley face

References

[1]     S. R. Samareh Hashemi and S. A. Seyedin, “Fast Imaging in Ground-Based Circular Strip-Map Synthetic Aperture Radar,” Journal of Radar, vol. 3, no. 1, pp. 57-72, 2015. (In Persian) 
[2]     N. Montaseri  and  Y. Qane Qarebagh, “Design and Synthesis of Cosecant-Squared Pattern in Microstrip Array Antenna using Genetic Algorithm Optimization,” Journal of Radar, vol. 5, no. 3, pp. 27-36, 2017. (In Persian) 
[3]     A. Pirhadi,  M. H.  Rahmani, and A. Mallahzadeh, “Shaped beam array synthesis using particle swarm optimisation method with mutual coupling compensation and wideband feeding network,” IET, Microwaves, Antennas and Propagation, vol. 8, pp. 549-555, 2014.
[4]     T. Carberry, “Analysis theory for the shaped-beam doubly curved reflector antenna,” IEEE Transactions on Antennas and Propagation, vol. 17, no. 2, pp. 131-138, March 1969.
[5]     S. Junhao, “On the Improvement of Shaped-Beam Doubly Curved Reflector Antenna,” 2006 7th International Symposium on Antennas, Propagation and EM Theory, Guilin, pp. 1-3. 2006.
[6]     S. Junhao, L. Hongmei and W. Chao, “IFF antenna sharing the reflector with the C-band radar,” Proceedings of the 9th International Symposium on Antennas, Propagation and EM Theory, Guangzhou, pp. 293-295. 2010.
[7]     V. Schejbal, J. Pidanic, and O. Fiser, “Broadband   Approximation of Radiation Patterns for Doubly Curved Reflector Antennas [Antenna Designer's Notebook],” IEEE Antennas and Propagation Magazine, vol. 53, no. 6, pp. 
140-146, Dec. 2011. 
[8]     A. Dastranj, H. Abiri, and A. Mallahzadeh, “Design of a Broadband Cosecant Squared Pattern Reflector Antenna Using IWO Algorithm,” IEEE Transactions on Antennas and Propagation, vol. 61, no. 7, pp. 3895-3900, July 2013.
[9]     A.  Brunner and E. Kress, “Monopulse Antennas with Doubly Curved Reflectors,” 1974 4th European Microwave Conference, Montreux, Switzerland, pp. 357-361. 1974.
[10]  A. I.  Zaghloul,   Y.  Hwang,  R. M. Sorbello, and F. T. Assal, “Advances in multibeam communications satellite antennas,” Proc. IEEE, vol. 78, pp. 1214–1232, July 1990.
[11]  F. Vipiana, G. Vecchi, M. Sabbadini, “A multiresolution approach to contoured-beam antennas,” IEEE Trans. Antennas Propag., vol. 55, no. 3, pp. 684–697, 2007.
[12]  H. T. Chou, Y. T.  Hsaio, P. H. Pathak, P. Nepa and 
P. Janpugdee, “A fast DFT planar array synthesis tool for generating contourd beams,” IEEE Antennas Wirel.  Propag. Lett, vol. 3, pp. 287–290, 2004.
[13]  T. S. Bird, “Contoured-beam synthesis for array-fed reflector antennas by field correlation,” IEE Proc. Microw. Opt. Antennas, vol. 129, no. 6, pp. 293–298, 1982.
[14]  J. W. Marshall, “A nulling algorithm for multi-aperture multiplebeam antennas,” in Proc. IEEE Military Communications Conf. (MILCOM’94), vol. 1, 1994, pp. 27–31.
[15]  S. D. Gray, “Nulling performance comparison between a single- and multiple-aperture multiple-beam antenna,” IEEE Trans. Antennas Propagat., vol. 43, pp. 1319–1324, Nov. 1995.
[16]  A. Foudazi and A. R. Mallahzadeh, “Pattern synthesis for multi-feed reflector antennas using invasive weed optimisation,”   IET Microw.  An .and Propag, vol. 6, no. 14, pp. 1583–1589, 2012.

[17]  R. Marija Milijić, D. Aleksandar. Nešić, D. Bratislav Milovanović, and A. Nešić, Dušan “Printed Antenna Array with Flat-Top Radiation Pattern,” Frequenz, vol. 72, pp. 173–180, 2017.
[18]  X. Cai and W. Geyi, “An Optimization Method for the Synthesis of Flat-Top Radiation Patterns in the Near- and Far-Field Regions,” IEEE Trans. Antennas Propagat, vol. 67, no. 2, pp. 980-987, Feb. 2019. 
[19]  H. Patidar, G. K. Mahanti,  and  R. Muralidharan, “Synthesis of flat-top beam pattern of linear antenna arrays with restricted side lobe level, VSWR and independent nulls using Flower Pollination algorithm,” International Journal of Electronics, vol. 106, pp. 1964-1977, 2019.
[20]  A. R. Mallahzadeh and P. Taghikhani, “Shaped elevation pattern synthesis for reflector antenna,” Electromagnetics, vol. 33, no. 1, pp. 40–50, 2013.
[21]  W. A. Imbriale, P. G. Ingerson, and W. C.Wong, “Large lateral feed displacements in a parabolic reflector,” IEEE Trans. Antennas Propagat., vol. AP-22, pp. 742–745, Nov. 1974.
[22]  J.  Ruze, “Lateral-feed displacement in a paraboloid,” IEEE Trans. Antennas Propagat., vol. 13, pp. 660–665, Sep. 1965.
[23]  I. Aryanian and  M. H.  Amini, “Synthesis of contoured beam multifeed reflector antenna for optimum coverage,” Microw Opt Technol Lett. pp. 1– 7, Sep. 2020.
[24]  A. Hasani, M. Hajiahmadi, and I. Aryanian, “An Efficient Method for Calculation of Physical Optics Integral for Large Reflector Antennas,” Electrical   Engineering (ICEE), Iranian Conference on, Mashhad, pp. 558-561, 2018.
[25]  N. Jin, and Y. Rahmat-Samii, “Advances in particle swarm optimization for antenna designs real-number, binary, single-objective and multiobjective implementations,”  IEEE Trans. Antennas Propag., vol. 55, no. 3, pp. 556–567, 2007.
[26]  Y. Rahmat-Samii and E. Michielssen, “Electromagnetic Optimization by Genetic Algorithm,” New York: Wiley, 1999.
[27]  J.  M.  Johnson   and  Y.  Rahmat-Samii, “Genetic algorithms in engineering electromagnetics,” IEEE Antennas Propag. Mag., vol. 39, pp. 7–21, Aug. 1997.
[28]  D. S. Weile and E. Michielssen, “Genetic algorithm optimization applied to electromagnetics: A review,” IEEE Trans. Antennas Propag., vol. 45, pp. 343–353, Mar. 1997.
[29]  M. R. Amini, M. Mahdavi, and M. J. Omidi, “Maximizing Dynamic Access Energy Efficiency in Multiuser CRNs With Primary User Return,"IEEE Systems Journal, vol. 13, no. 2, pp. 1702-1713, June 2019.
[30]  A. J. Martinez-Ros, J. L. Gómez-Tornero and G. Goussetis,  “Multifunctional Angular Bandpass Filter SIW Leaky-Wave Antenna,” in IEEE Antennas and Wireless Propagation Letters, vol. 16, pp. 936-939, 2017.
Radar
Volume 9, Issue 1 - Serial Number 25
September 2021
Pages 17-23

Files

History

  • Receive Date: 04 April 2021
  • Revise Date: 25 May 2021
  • Accept Date: 05 December 2021
  • Publish Date: 23 August 2021

Share

How to cite

Statistics