Biomedical Engineering Reference
In-Depth Information
RF Module
Pulse generator
ANT
VDDA
Square wave
generator
Power
Amplifier
Buffer 1
VDDB
XOR
AND
BPF (3.5-4.5 GHz)
Buffer 2
Interface Electronics
RF enable
ยต
Analog
inputs
- Controller
INA321
Digital inputs
Fig. 4.10
Amplifier based UWB sensor node design
(a)
(b)
(c)
Frequency (GHz)
Fig. 4.11 Frequency spectrum of amplifier based sensor node at a pulse generator output b band
pass filter (3.5-4.5 GHz) output, and c amplifier output
