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Multi-channel radio-frequency (RF) transmit coil arrays have been developed to mitigate many of the RF challenges associated with ultra-high field ( 7T) magnetic resonance imaging (MRI). These arrays can be used for parallel RF transmission to produce spatially tailored RF excitation over the field of view. However, the realization of such arrays remains a challenge due to significant reactive...
Using the unlicensed 60-GHz millimeter-wave band, an antenna array driven by CMOS circuitry enables low-cost multi-gigabit broadband wireless transmission. The CMOS transceiver can consistently achieve data rates up to 3.8 Gb/s for video area network operation. Using beam-search techniques, the antenna arrays steer the beam to avoid line-of-sight blockage.
Recent advances in silicon technology, mm-Wave integrated circuit/antenna/package design, and beam-forming techniques at 60GHz, together with the emergence of suitable wireless standards, have enabled consumer electronics products to support wireless transmission of multi-Gb/s data such as high-definition (HD) audio/video content. Further expansion into portable and mobile platforms will require lower...
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