Biomedical Engineering Reference
In-Depth Information
Fig. 4.8 UWB sensor node
designs a [
29
] b [
30
], IEEE
copyright
micro-controllers, sensor front-end circuits, receiver back-end processing units and
matching circuits. This section presents some of the full implementations of UWB
based sensor nodes that can be found in literature.
An UWB sensor node built based on a UWB pulse generator IC is presented in
[
29
] (Fig.
4.8
a). In this design, switched voltage control ring oscillator approach is
used in order to generate the UWB pulses. The data is fed into the circuit using a
Field Programmable Gate Array (FPGA) and is modulated using the pulse stream
generated by the aforementioned pulse generation technique. This work also
presents the implementation of a UWB antenna on the same Printed Circuit Board
