Fourier Rotman Lens Enabled Directional Modulation Transmitter

Figure 14

Measured BER spatial distributions for the Fourier Rotman lens, (a) DQPSK and (b) DBPSK DM systems for various interference configurations. BER results for the corresponding conventional beam-steering system are also provided. The SNR for each case was set to 25.8 dB and 21.2 dB.

(a)

(b)