Abstract

Wireless capsule endoscope (WCE) is a device that can realize real-time image transmission without cables. In this paper, a tri-band WCE communication system is proposed for low frequency real-time image transmission. The system consists of two transmitting antennas and a receiving antenna, with three frequency bands (38.5, 48.2 and 57.6 MHz band). Simulated results show that the path loss is 51, 30.6 and 54.4 dB at 38.5, 48.2 and 57.6 MHz with the distance of 50 mm between the capsule and the receiving antenna, and indicating that the communication system is possible to be used for WCE real-time image transmission.

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