Electronic Tether Project: RF Subsystem
Len Bergman and Sterling Toedtemeier
Advisors: Dr. James Sennott and Dr. B. D. Huggins
As society grows, parents become more concerned for the security of
their children. The "Electronic Tether" assists parents in keeping track
of where their children are located. This is a joint project broken into
three subsystems: RF (radio frequency), Digital Systems, and Power. Communication
was accomplished between the child's unit and the parent's unit by an RF
link at 2.4 GHz. Through the use of microstrip and microstrip surface mount
components a PRN code was modulated onto a 2.4 GHz signal and transmitted.
At the receiver correlation data and distance information was determined
by the use of a system constructed from surface mount mixers, SAW filters,
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