Abstract
Wireless capsule endoscopy (WCE) is a painless diagnostic tool used by the physicians for endoscopic examination of the gastrointestinal track. The performance of the existing WCE systems is limited by high power consumption and low data rate transmission. In this paper, a 144 MHz FinFET On-Off Keying (OOK) transmitter is designed and integrated with a class-E power amplifier. It is implemented and simulated using 16 nm FinFET Predictive Technology Models. The proposed transmitter can achieve the data rate of 33 Mbps with average power consumption of 1.04 mW from a 0.85 V power supply in the simulation. This design outperforms the current state-of-the-art designs.
Highlights
Wireless capsule endoscopy (WCE) is a state-of-the-art technology for medical diagnoses of gastrointestinal diseases and illnesses [1]
The performance of this technology is increased mainly due to the low leakage current, which leads to lower threshold voltages, allowing FinFET devices to work with lower power supplies [22]
The key point of this transmitter is that the modulation takes part at the Power Amplifier (PA) and not in the oscillator
Summary
Wireless capsule endoscopy (WCE) is a state-of-the-art technology for medical diagnoses of gastrointestinal diseases and illnesses [1]. This idea was originally conceived in 1950 [1, 2]. WCE captures the signals from sensors and takes pictures with the camera. These data are compressed and sent outside of human body in real time through a Radio Frequency (RF) module inside of the WCE.
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