Cost-effective 60-GHz antenna-package with end-fire radiation from open-ended post-wall waveguide for wireless file-transfer system

This paper proposes a cost-effective antenna-package suitable for the mobile terminal of the wireless file-transfer system. The antenna- package has the end-fire radiation from the open-end post-wall waveguide built in the side of the package. The antenna-package with a 60-GHz CMOS chip is mounted on the edge of a printed-circuit board by BGA technique. The antenna only was fabricated. The antenna has the size of 4.8 mm × 6.4 mm × 1.0 mm. The beamwidth of 120 degrees (E-plane), 72 degrees (H-plane), and 2.2 dBi gain were measured at 60 GHz. The radiation efficiency of the antenna was calculated to be 88 % at 60 GHz. Moreover, the antenna-package with two antennas for the transmitter and the receiver was designed. Its size was 14.4 mm × 14.4 mm × 1.0 mm. The package is under the fabrication.