J4 ›› 2010, Vol. 37 ›› Issue (4): 726-730.doi: 10.3969/j.issn.1001-2400.2010.04.026

• Original Articles • Previous Articles     Next Articles

Optimizing both radiation and scattering characteristics of the array antenna utilizing PSO

ZHANG Shuai;GONG Shu-xi;LU Bao;LING Jin;ZHA Feng-tao   

  1. (Key Lab. of Antennas and Microwave Technology, Xidian Univ., Xi'an  710071, China)
  • Received:2009-04-14 Online:2010-08-20 Published:2010-10-11
  • Contact: ZHANG Shuai E-mail:41539766@qq.com

Abstract:

In a way the similar to the radiation pattern multiplication theorem, this paper derives that the radar cross section(RCS) of an array is the product of the array RCS factor multiplying the element RCS factor. Based on these two formulas, the method for synthesizing both desired radiation and scattering patterns by optimizing the element placement is proposed. In order to verify its validity, the method is used to minimize the peak sidelobe level (PSLL) of both the radiation and scattering patterns. Compared with the uniform array, the PSLL of both the optimized radiation and scattering pattern are considerably reduced by optimization.

Key words: antenna arrays, particle swarm optimization, radiation, radar cross section reduction