Interest in body-worn wireless devices has grown in recent years because of actual and potential applications in healthcare, sports, law enforcement, entertainment and other areas. For example, the U.S. Department of Defense is working on a wireless device to be worn by soldiers that will allow medics to measure vital signs and collect other medical information from the troops. Body-worn wireless devices have been developed to measure and record an athlete’s performance, such as running speed and the number of strides.
Regardless of the application, using a wireless device in close proximity to the human body creates a number of major design challenges. The radiated power of the device must be kept below levels that can create a health hazard. The device’s power consumption, size, aspect ratio and weight must be minimized to make it suitable for wearing. Yet the device must be designed to deliver a signal of sufficient power to the right location, with good reception by the target device — despite the fact that the human body may absorb a significant portion of the signal.
MODELING THE SYSTEM
Synapse Product Development solves such difficult engineering challenges from concept through manufacturing for leading consumer electronics and life-sciences companies. One of the company’s specialties is developing body-worn wireless devices for a wide range of applications…