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We fabricated a post-wall waveguide (PWW) into silica substrate having thickness of 520 μm and integrated a transformer between microstrip transmission line (MSL) and the PWW. The estimated loss of the transformer associated with the mode conversion and the measured loss of the PWW is 0.06 dB and 0.017 dB/mm at 60 GHz, respectively. This work would be a first attempt to apply silica substrate for...
A small antenna with high isolation characteristics is designed and evaluated. Since the antenna provides lateral radiation, the antenna is suitable for the wireless file-transfer system, and it can be integrated into surface-mount package. The characteristics of the fabricated antenna meet the required gain of 6 dBi and beamwidth of 40–60 degrees. The size of the antenna is 7.5 mm × 8.4 mm × 1.0...
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...
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