A Low Power Interference Robust IR-UWB Transceiver SoC for WBAN Applications - Ultra-Wideband and 60 GHz Communications for Biomedical Applications - page 40

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0 2 4 6 8 10 0 0.5 1

Frequency (GHz)

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Time (ns)

a b

Fig. 20 a Measured time domain squarer output waveform, b spectrum of squarer output

Fig. 21 Measurement setup
for bit error rate (BER) and
signal-interference-ratio
(SIR)

The setup for receiver bit error rate (BER) and signal-interference-ratio (SIR)
measurement is shown in Fig. 21 . For BER measurement, the randomly generated
TX data from the BER software is sent to the UWB transmitter, the TX output is
attenuated with a variable attenuator and then fed into the RX. The received data
is compared with the TX data by a BER algorithm implemented in FPGA. Figure 22 a

a

b

Fig. 22 a Measured bit error rate (BER) at 1 Mb/s. b Measured receiver signal-interference-ratio
(SIR)