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An 8×1-element wideband dual-polarized slot-coupled microstrip antenna array with high isolation and low crosspolarization in X-band is presented.The array antenna offers an impedance bandwidth(VSWR≤2)of 23%and 21%for dual polarization ports,respectively.The measured isolation between two polarization ports is better than 35 dB and the measured cross-polarization level below-25 dB in the main beam over the operation frequency band of 9.35 GHz to 9.75 GHz.This array is well suitable for X-band SAR(synthetic aperture radar)antenna application.