Tetsuki Taniguchi

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SUMMARY A baseband transmission scheme for wireless communications has been proposed and examined using a pair of discone antennas for transmission and reception. The wireless baseband transmission scheme radiates a baseband signal stream, such as non-return-to-zero (NRZ), return-to-zero (RZ), or Manchester encoded signals, directly from an antenna. Namely,(More)
SUMMARY This paper introduces a novel MIMO (Multiple Input Multiple Output) communication system having orthogonal dual polarization diversity branches. We have designed a dual polarized circular patch antenna which has two orthogonal polarization ports such as vertical polarization (V) and horizontal polarization (H) on its metal surface. This design makes(More)
This paper presents a method for reducing the computational complexity required for farfield broadband beam-forming. First, the propagating wave received by a linear or planar array of sensors is sampled efficiently on the mul-tidimensional frequency plane in spatio-temporal sense so that the so-called non-physical area where no spectrum exists is filled(More)