中文

Journal of Applied Sciences ›› 2002, Vol. 20 ›› Issue (4): 373-376.

• Articles • Previous Articles     Next Articles

A New Dual-Polarized Aperture-Coupled Microstrip Patch Array

CUI Jun-hai1, ZHONG Shun-shi1, DUAN Wen-jun2, LU Biao2, XIE Ya-nan2   

  1. 1. Department of Communication Engineering, Shanghai University, Shanghai 200072, China;
    2. The 804th Research Institute, Shanghai Space Flight Bureau, Shanghai 200082, China
  • Received:2001-05-31 Revised:2002-01-28 Online:2002-12-31 Published:2002-12-31

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Abstract: A new dual polarized aperture-coupled microstrip antenna array is proposed. Based on the analysis of the finite-difference time-domain (FDTD) method, the design of an 8×2 array is presented and investigated. The thickness of the array is only 1.8mm. The experimental results show that the bandwidth of VSWR<1.5 reaches 4.8%, and the cross polarization level is better than-23dB, while the isolation between the dual polarization ports is 30dB. This array can be used as a sub array of spaceborne synthetic aperture radar (SAR) system by connecting it with the active transmitter/receiver (T/R) components.

Key words: microstrip antennas, aperture coupling, synthetic aperture radar, dual polarization

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