Title:77 GHz center-fed differential microstrip antenna arrayAuthor(s):Ziqiang Tong,  Andreas StelzerAbstract:A differential microstrip antenna array design for millimeter-wave applications is presented. The antenna is fed by coupled microstrip lines, which facilitates the integration of antennas and differential circuits in RF-front systems. In this work, such an antenna array was designed for an autonomous cruise control application at 77 GHz. The antenna array has a bandwidth of 2 GHz at -10 dB return loss. The radiation patterns of co-polarization are stable over the bandwidth due to the center-fed structure. The 3 dB beam widths are 28 degrees and 78 degrees in the E-plane and the H-plane, respectively, and cross-polarization is very low. The measurement results are in good agreement with the simulation results.Booktitle:Proc. of the 5th European Conference on Antennas and Propagation (EUCAP), 2011ISBN:978-1-4577-0250-1Page Reference:page 583 - 586, 4 page(s)Publishing:5/2011

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