Active antenna integrated with down converter for 24 to 5 GHz bands

Within the research towards a new generation of in-door communication systems, the utilization of frequencies in the higher microwave and lower MM-wave bands may play an important role in future. Moreover, it is assumed that future systems can also simultaneously exploit the advantages of lower and higher frequency bands. In order to prove the system concept, a dual-frequency demonstrator working at 24 GHz (ISM band) and 5 GHz (non-licensed band) is under development. Full integration of a high gain antenna with a 24 GHz front-end is achieved in very low-cost way. The solutions are successfully implemented and described in more detail. Measured results have proved the proposed concept