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Recent Trends in Internet of Medical Things: Challenges and Opportunities
Abstract
Ultrashort pulses with exceptionally broad bandwidth and low power are transmitted and received by ultrawideband radar systems. While these features make UWB radars safe for use around people and compatible with other equipment, they also make it more difficult to detect the echo signal they produce. As a result, the radar antenna is crucial in UWB systems; in fact, it must be able to meet the broad band of frequency response and directivity requirements simultaneously. It is suggested that a radiated beam or gadgets worn on the body be used to minimize “losses” to the surroundings. In UWB imaging devices, a very narrow pulse is broadcast from a UWB antenna to penetrate the body. When the pulse travels through several tissues, reflections and scattering take place at the interfaces. Special attention should be paid to the diffused signal from a tumor-initiating small-tissue sample.
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