Generation of high-speed pseudo-random sequences using multiplex-techniques

We report on the design and performance of high-speed pseudo-random sequence generators for NRZ-signals. The hardware is based on multiplexer circuits that multiply the data rate of a 5 Gbit/s pseudo-random sequence to respectively 10 Gbit/s and 20 Gbit/s. We used multiplex-techniques based on the "cycle-and-add property" of pseudo-random sequences. Using both microstrip and coplanar waveguide technology, the circuitry incorporates special high-speed silicon chips. The experimental results demonstrate the feasibility of our approach.