Abstract
Recently, wireless capsule endoscope (WCE) has been developed for inspection of the digestive tract with less burden on patients.In this paper, transmitting and receiving antennas for WCE are proposed. A resonant frequency of the proposed antennas is 48.2 MHz. Due to low resonant frequency, signal attenuation from human body can be decreased, compared to a WCE antenna operating at Medical Implant Communication Systems (MICS) band (402 - 405 MHz). Magnetic sheet is used to secure bandwidth and increase channel capacity. A human equivalent phantom is used to evaluate the communication performance between antennas with and without a magnetic sheet.
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