Passive Radar at the Roadside Unit to Configure Millimeter Wave Vehicle-to-Infrastructure Links

Terahertz Imaging, Millimeter-wave Radar

The millimeter wave (MMW) band of frequencies extends from 30 GHz to 300 GHz, with some fuzziness on both ends of this spectrum. The terahertz (THz) band extends from about 200 GHz to about 30 THz, despite the fact that the lower frequencies in this range are not strictly 10 Hz or higher. These bands are also variously called submillimeter, far-infrared, and near-millimeter. In recent years, th...

The 4 GHz Bandwidth Millimeter - Wave Radar

The landmark construction of the Advanced Research Projects Agency (ARPA)–Lincoln C-band Observables Radar (ALCOR) at Kwajalein Atoll in 1970 sparked significant interest in the ballistic missile defense (BMD) and satellite-identification communities [1]. ALCOR's 50 cm range resolution using 512 MHz bandwidth data confirmed the viability of valuable new BMD discrimination techniques and provide...

Millimeter-wave MIMO: Wireless Links at Optical Speeds

We propose a new architecture for bridging the existing gap in speeds between wireless and optical links. The Millimeter Wave MIMO system employs “millimeter (mm) wave” spectrum in the E-band (70-95 GHz), which has been made available by the Federal Communications Commission on a semi-unlicensed basis for outdoor point-to-point communication. The small wavelengths enable highly directive beams ...

Millimeter-Wave Circuit Design for Radar Transceivers

Millimeter-Wave Radar Technology for Automotive Application

Mitsubishi Electric Corporation has developed a millimeter-wave radar for automotive application. Monolithic microwave integrated circuits (MMICs), developed specifically for this application by Mitsubishi Electric, are used for the radio-frequency (RF) module to obtain outstanding radar performance. This millimeter-wave radar incorporates a signal-processing unit in the radar head, resulting i...