To prolong the worktime of the video capsule endoscopy and improve the quality of the video

lowering the power of the embedded radio circuit module inside the capsule is needed

which helps improve the radio effect.The embedded radio circuit module and helix antenna inside the endoscopy are designed

ADS2011 and HFSS are applied in simulation

and finally the experiments validate the design.The high quality video after the video capsule endoscopy entered the gastrointestinal (GI) tract of the live animal (pig) validated the feasibility of the design.The result indicates that the worktime of the endoscope is 9.0 h and the wireless transmitting rate reaches 30 frame/s (320 240 pixel/frame) when the diameter of transmission circuit board is 9.8 mm

work frequency is 1.0 GHz

and power is 15.9 mW.