J4 ›› 2010, Vol. 37 ›› Issue (2): 290-294.doi: 10.3969/j.issn.1001-2400.2010.02.019

• Original Articles • Previous Articles     Next Articles

Printed dipole antenna array with wideband and low RCS characteristics

YUAN Hong-wei;GONG Shu-xi;WANG Wen-tao;ZHANG Peng-fei   

  1. (Key Lab. of Antennas and Microwave Technology, Xidian Univ., Xi'an  710071, China)
  • Received:2009-02-27 Online:2010-04-20 Published:2010-06-03
  • Contact: YUAN Hong-wei E-mail:yuanhw@mail.xidian.edu.cn

Abstract:

A new printed dipole antenna array is given. In order to further increase bandwidth capabilities of this antenna, a novel low-cost smaller unit-cell planar photonic bandgap (PBG) structure is etched onto the antenna surface. By optimizing the sizes of the PBG structure, a bandwidth is of 56.7% is obtained where the voltage standing wave ratio (VSWR) is less than 1.5 while a bandwidth of 36% is obtained from the traditional structure. Moreover, a new Frequency Selective Surface (FSS) is used for the ground of the array antenna, which can reduce the radar cross section(RCS) of the antenna array.

Key words: dipole antenna, microstrip antennas, photonic bandgap, wideband, radar cross section