ITU-R QUESTION 2425-2000 Reference radiation patterns of omnidirectional and sectoral antennas in point-to-multipoint systems for use in sharing studies《用于共享研究的点对多点系统中全向天线和扇形天线的参考辐.pdf

《ITU-R QUESTION 2425-2000 Reference radiation patterns of omnidirectional and sectoral antennas in point-to-multipoint systems for use in sharing studies《用于共享研究的点对多点系统中全向天线和扇形天线的参考辐.pdf》由会员分享，可在线阅读，更多相关《ITU-R QUESTION 2425-2000 Reference radiation patterns of omnidirectional and sectoral antennas in point-to-multipoint systems for use in sharing studies《用于共享研究的点对多点系统中全向天线和扇形天线的参考辐.pdf（1页珍藏版）》请在麦多课文档分享上搜索。

1、QUESTION ITU-R 242/5*Reference radiation patterns of omnidirectional and sectoral antennas inpoint-to-multipoint systems for use in sharing studies(1995-2000)The ITU Radiocommunication Assembly,consideringa) that determination of criteria for frequency sharing between point-to-multipoint systems int

2、he fixed service and systems in other services requires a knowledge of radiation patterns ofomnidirectional and sectoral antennas along all possible interfering paths;b) that the use of reference radiation patterns for omnidirectional and sectoral antennas wouldfacilitate interference calculations;c

3、) that different reference radiation patterns may be required for the various types of antennasin use,decides that the following Questions should be studied:1 What are the measured radiation patterns in the vertical and horizontal planes for bothpolarizations of typical omnidirectional and sectoral antennas used in point-to-multipoint systems?2 What reference radiation patterns can be defined for the different types of antennas?NOTE 1 See Recommendation ITU-R F.1336._* Former Question ITU-R 202-1/9.