Evaluation of HTS sub-systems for cellular basestations

The application of High Temperature Superconductors (HTS) has led to the de velopment of new sub-systems for cellular basestations used in network infr astructures. They offer performance advantages in terms of sensitivity and selectivity as well as a reduction in size, which allows them to be install ed on top of the antenna mast. Results are presented for an HTS-system, whi ch was designed to interface to GSM-1800 basestations. The measured perform ance parameters of an HTS subsystem and a conventional system have been imp lemented into a network-planning tool to assess the advantages in the impro ved system performance for network operators. Both macro cellular environme nts, deployed to serve rural areas with a low user density and an urban con dition, with macro plus microcellular environment with a high subscriber de nsity have been evaluated. The results show, that the network operator can choose to employ different advantages, for example a reduction in the numbe r of basestations in rural areas by 24%, or an increased capacity in urban areas with a simultaneous reduction of carriers by 30%.