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An 120GHz-band 16×16-slot array antenna fed with a corporate circuit has realized about 70% antenna efficiency including losses from 117GHz to 129GHz. 10Gbps data transmission with BER<10−12 is achieved with an effective transmission power of −14dBm at a distance of 1.4m. The antennas could be extended for sub-millimeter wave and THz bands.
We design and fabricate a double-layer slotted waveguide array antenna having a wide bandwidth and a high efficiency for 120 GHz band and 350 GHz band using diffusion bonding of laminated thin metal plates. The fabricated 120GHz-band antennas are measured in two types of systems to examine the performance. The firstly fabricated antenna shows about 65% efficiency with 31.5 dBi gain around the design...
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