title: A UWB wireless capsule endoscopy device.
abstract: Wireless capsule endoscopy (WCE) presents many advantages over traditional wired endoscopic methods. The performance of WCE devices can be improved using high-frequency communication systems such as Impulse Radio-Ultra-Wideband (IR-UWB) to enable a high data rate transmission with low-power consumption. This paper presents the hardware implementation and experimental evaluation of a WCE device that uses IR-UWB signals in the frequency range of 3.5 GHz to 4.5 GHz to transmit image data from inside the body to a receiver placed outside the body. Key components of the IR-UWB transmitter, such as the narrow pulse generator and up-conversion based RF section are described in detail. This design employs a narrowband receiver in the WCE device to receive a control signal externally in order to control and improve the data transmission from the device in the body. The design and performance of a wideband implantable antenna that operates in the aforementioned frequency range is also described. The operation of the WCE device is demonstrated through a proof-of-concept experiment using meat.
authors.forename: Kasun M S
authors.initials: KM
authors.lastname: Thotahewa
authors.forename: Jean-Michel
authors.initials: JM
authors.lastname: Redoute
authors.forename: Mehmet Rasit
authors.initials: MR
authors.lastname: Yuce
mesh_terms: D053704:Capsule Endoscopy / Q000295:instrumentation* / Q000379:methods; D003195:Computer Communication Networks; D003201:Computers; D004867:Equipment Design; D006801:Humans; D008027:Light; D008460:Meat; D018670:Monitoring, Ambulatory / Q000379:methods; D011846:Radio Waves; D014159:Transducers; D059015:Wireless Technology