High data rate wireless system solution: 60 GHz/5 GHz dual frequency operation

The data rate demand for wireless systems due to a variety of applications is permanently growing. To meet the increased demand a new generation of systems has to be targeted. Due to the common spectrum availability it is required to envisage possible solutions at frequencies in the higher microwave and lower MM-wave bands. However, possible future systems has to additionally provide features of utilising technologies having the prospective of being low cost in the near future, to provide easy backward capability to lower generation system and comprehensive interworking functionality. In this paper possible system solutions for future dual frequency 60 GHz/5 GHz systems are addressed, trying to give an answer for the major stated requirements. Both 60 GHz systems and 5 GHz systems (HIPERLAN II, IEEE 801.11a) are non-licensed systems having the potential for mass market introduction in the near future.