Journal of electromagnetic engineering and science

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Dual Polarized Array Antenna for S/X Band Active Phased Array Radar Application

  • Han, Min-Seok (Dept. of Electronics and Computer Engineering, Hanyang University) ;
  • Kim, Ju-Man (Dept. of Electronics and Computer Engineering, Hanyang University) ;
  • Park, Dae-Sung (Core Technology Group of Samsung Thales) ;
  • Kim, Hyoung-Joo (Core Technology Group of Samsung Thales) ;
  • Choi, Jae-Hoon (Dept. of Electronics and Computer Engineering, Hanyang University)
  • Received : 2010.11.17
  • Published : 2010.12.31
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Abstract

A dual-band dual-polarized microstrip antenna array for an advanced multi-function radio function concept (AMRFC) radar application operating at S and X-bands is proposed. Two stacked planar arrays with three different thin substrates (RT/Duroid 5880 substrates with $\varepsilon_r$=2.2 and three different thicknesses of 0.253 mm, 0.508 mm and 0.762 mm) are integrated to provide simultaneous operation at S band (3~3.3 GHz) and X band (9~11 GHz). To allow similar scan ranges for both bands, the S-band elements are selected as perforated patches to enable the placement of the X-band elements within them. Square patches are used as the radiating elements for the X-band. Good agreement exists between the simulated and the measured results. The measured impedance bandwidth (VSWR$\leq$2) of the prototype array reaches 9.5 % and 25 % for the S- and X-bands, respectively. The measured isolation between the two orthogonal polarizations for both bands is better than 15 dB. The measured cross-polarization level is ${\leq}-21$ dB for the S-band and ${\leq}-20$ dB for the X-band.

Keywords

References

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