Fixed Radio Systems; Point to Multipoint Antennas; Antennas for Point-To-Multipoint Fixed Radio Systems in the 11 GHz to 60 GHz Band; Part 2: 24 GHz to 30 GHz (V1.1.1)
The present document specifies the essential electrical requirements for linear polarization@ fixed beam antennas to be utilized with new Point-to-Multipoint (P-MP) systems [1]@ including central station and terminal station applications@ operating in frequency bands from 11 GHz to 60 GHz. These systems use various multiple access schemes. Electronically steerable antennas@ and circularly polarized antennas are not considered in the present document. The present document@ taken together with EN 301 215-1 [3]@ specifies the requirements for systems operating in the frequency range 24 GHz to 30 GHz. A regulatory authority may impose tighter requirements than the minimum values given in the present document@ in order to maximize the use of the scarce spectrum resources. For some high gain@ point-to-multipoint requirements@ antennas may be used having performance as per the appropriate point-to-point antenna standard. For these antennas@ minimum requirements are given in [2].