Journal of Xidian University ›› 2016, Vol. 43 ›› Issue (4): 81-85.doi: 10.3969/j.issn.1001-2400.2016.04.015

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Resistive FSS applied to the RCS reduction of array antennas

WANG Fan;GONG Shuxi;WANG Fuwei   

  1. (Science and Technology on Antenna and Microwave Lab., Xidian Univ., Xi'an  710071, China)
  • Received:2015-03-28 Online:2016-08-20 Published:2016-10-12

Abstract:

A ring-shaped resistive frequency selective surface (FSS) microwave-absorbing structure is designed and applied to the RCS reduction of the microstrip antenna array. The resistive FSS structure is constructed from resistive treble-square loops arranged in a periodic array. An array with four patch elements is designed, and the resistive FSS is located between two patch elements. Simulated results show that the proposed structure shows a good microwave absorbing characteristic in the frequency range of 6GHz to 22GHz. When loaded in a microstrip antenna array, the RCS of the array antenna can be reduced to the maximum of 27dB with little impact on the antenna's radiation characteristic. And the control of the wideband RCS of the antenna can be realized with this structure.

Key words: resistive frequency selective surface(FSS), RCS reduction, microstrip antenna arrays