Abstract
Low-frequency communication is one of the best ways to reduce signal attenuation from the human body, although slow data rates make stable wireless communication within the human body difficult. In this paper, we designed two coil antennas for wireless implant communication, including a small dual-band transmitting antenna that can be placed inside the human body and a corresponding receiving antenna that can be mounted on the abdomen of the human body. The proposed antenna is fed from a battery-powered impulse radio (IR) transceiver peaking at 10–60 MHz, and the antenna is designed to be wideband for higher data communication rate. Simulation and measurement of reflection and transmission coefficients confirmed operation at 40–60 MHz. In addition, a battery-powered IR transceiver is used to measure the transmission performance in a 2/3 muscle phantom. As a result, communication at a data rate of 20 Mbps is achieved at a distance of 90 mm in the 2/3 muscle phantom.
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