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We present an ultra small dual band antenna for both wireless power transmission (WPT) and radio frequency communication (RFC). A novel LC resonator circuit is applied for signal isolation of two frequency bands. We have shown the transmission performance of both WPT and RFC based on the simple circuit theory. The designed antenna is fabricated with the size of 7 × 7 × 0.65 mm. It achieves −11.2 dB...
We propose a new slab shaped body-air channel model, in which the transmit antenna is located in body while receiver is placed in the air. The signal strength received at an ultra small magnetic dipole TX antenna is analyzed using wave equation, simulation, and experiment. Due to the slab reflecting effect, the results surprisingly show that there exists an optimum transmit antenna location in body...
Discrete Fourier transform (DFT)-based codebooks are known to work efficiently for spatially correlated channels produced by uniform linear arrays. Although the long-term codebooks are selected to suit to channel correlation characteristics, such selections may not be optimal for the given channel of the target user equipment (UE), due to the specific structure and constraints of the codebook in use...
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