Abstract
Highly integrated multilayered patch antenna arrays are proposed in this paper for 60 GHz wireless communications. Electromagnetic coupling between two stacked patches is used for improving the broadband performance. Three different structures of single column 4-element arrays are presented with center and corporate feeding networks. Maximum gain of 12.2 dBi and <-10 dB return loss in the entire unlicensed frequency band 57–66 GHz is measured. Furthermore, a compact 4×16 antenna array (41 mm × 13 mm) is presented with 18.7 dBi maximum gain, 8 GHz (57–65) bandwidth and 7° HPBW (half power beam width) in H plane.
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