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We examine the current development of highly integrated 60-GHz radios with an interest in antenna-circuit interfaces. We design and analyze grid array antennas with special attention to the differential feeding and the patterned ground plane. More importantly, we integrate two grid array antennas in a package; propose the way of assembling it to the system printed circuit board; and demonstrate a...
This paper presents a dual-folded-dipole array integrated in a thin cavity-down ball grid array chip-scale package for highly-integrated 60-GHz radios. Realized in a low temperature cofired ceramic (LTCC) technology, the package measures 12.5x8x1.265 mm3 and can carry a 60-GHz radio die of current size. The antenna array is designed to cover a 7-GHz bandwidth from 57 to 64 GHz to suit the allocated...
A 60-GHz wideband circular polarized (CP) patch array of 4??4 elements is designed and fabricated in low temperature cofired ceramic (LTCC) technology. By applying a strip line sequential rotation feeding scheme this array exhibits wide impedance bandwidth (VSWR<2) and 3-dB axial ratio (AR) bandwidth, both over 8 GHz. In addition, it exhibits a peak gain of 16.8 dBi and a beam-shaped pattern with...
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