Development of Localization Method Corresponding to Both Polarized Waves in a Capsule Endoscope

Wireless capsule endoscopy is a medical device that examines the human gastrointestinal (GI) tract without burdening patients. Wireless power transmission technology of the capsule endoscope has been researched, and getting the capsule location is important to improve the power transmission efficiency. In this report, we try to develop a localization method for wireless power transmission. An algorithm corresponding to both horizontally and vertically polarized waves is developed, and the performance is evaluated by three-dimensional localization with eight receiving antennas.