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The stripline fed 60GHz CP 2x4 patch array and LP grid array were designed in LTCC technology. The arrays with GCPW-stripline transitions were fabricated and measured in terms of the impedance matching performance and polarization characteristics. The wireless access advantage of the CP patch array over the LP grid array antenna is demonstrated.
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...
This paper first presents a quasi-cavity-backed, guard-ring-directed, substrate-material-modulated slot antenna. The antenna, intended for use in highly integrated 60-GHz radios, is deliberately designed to exhibit capacitive input impedance to suit low-cost wire-bonding packaging and assembly technique. The antenna implemented in a thin cavity-down ceramic ball grid array (CBGA) package in low-temperature...
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