THE COST PROJECT 245 AND THE CRITICAL AREAS OF ACTIVES ANTENNAS

Working Group III: Active Antenna Architectures and Components

One of the challenges in the development of active antennas is the availability of efficient and affordable amplification modules with optimized interfacing to radiating elements and to the beam former.

The COST 245 working group on architectures and components has concentrated it's efforts in two areas : Novel semi-active antenna architectures and MMIC components and circuits.

In semi-active antennas, microwave circuits are introduced between radiating elements and power modules so that the latter can operate most efficiently at their nominal output level.

Within COST project 245, the extension of the concept to planar arrays and to conformal arrays (in particular for future cellular base station antennas) is one of the tasks of this working group.

MMIC components and circuits are the key to low cost mass production of active antennas. Efforts of the working group have focused on components for transmit and receive power modules with, in particular, the reunion of a very successful workshop on the subject.

COST-245 Summary report

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Mars 1997 Content Responsible : Technical Manager : Webmaster@lema.epfl.ch