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A compact range wireless access system in the 60 GHz-band has been proposed for multi-Gb/s data transfer. A prototype Gigabit Access Transponder Equipment was made to evaluate the system performance of bit-error rate and signal-to-noise ratio. An error-free communication zone up to 11 m is available by adopting the 32×32 and 64×64-element waveguide slot arrays in the transmitter. However, the BER...
A novel compact-range gigabit wireless access system in the 60 GHz band is proposed for burst-type data transfer. A large array antenna adopted in the access point forms a stable communication zone proportional to the antenna size. The mobile user standing everywhere within the coverage, receives a stable signal almost free of multi-path. The circularly-polarized waveguide slot arrays with different...
Recently, a cloud computing system is widely expected to realize a free and high-capacity data transfer between the high-performance mobile wireless terminals and the servers. The highspeed multi-Gbps short range wireless access gate system in millimeter-wave band is under development in Japan. Figure 1 illustrates the wireless access gate to be established in stations and other public areas. Many...
We fabricate the single-layer slotted waveguide array antenna in 94 GHz band by diffusion bonding. According to the processing conditions, the thickness of slotted plate and that of coupling windows are increased to 0.3 mm and 1.0 mm, respectively. All these effects of large thickness are precisely evaluated and taken into account during the antenna design. The radiating characteristics of resonant...
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