ITU-R BO.652-1 FRENCH-1992
12 GHz频段的广播卫星业务及14和17 GHz频段的相关馈线链路的地球站和卫星天线的参考辐射方向图.第10/11C部分:术语

Reference Patterns for Earth-Station and Satellite Antennas for the Broadcasting-Satellite Service in the 12 GHz Band and for the Associated Feeder Links in the 14 GHz and 17 GHz Bands - Section 10/11C - Technology

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标准号

ITU-R BO.652-1 FRENCH-1992

发布日期

1992年01月01日

实施日期

废止日期

无

中国标准分类号

M60;M75

发布单位

IX-ITU

被代替标准

ITU-R BO.652-1986

适用范围

For planning the broadcasting-satellite service, it is necessary to make certain assumptions concerning the maximum gain of the antenna (both for transmitting and receiving),and the way in which the gain decreases as a function of the angle measured from the axis of the beam.This information is essential for calculating interference between the transmissions for different service areas.The patterns are given as fiinctions of the relative angle Cplcpo, where cp is the angle measured from the axis of the beam, and cpo is the angular width of the beam measured between the -3 dB levels.The levels are expressed in dB relative to the maximum (on-axis) gain of the antenna.For planning the broadcasting-satellite service,it is necessary to make certain assumptions concerning the maximum gain of the antenna (both for transmitting and receiving), and the way in which the gain decreases as a function of the angle measured from the axis of the beam. This information is essential for calculating interference between the transmissions for different service areas.The patterns are given as fiinctions of the relative angle Cplcpo, where cp is the angle measured from the axis of the beam, and cpo is the angular width of the beam measured between the -3 Db levels.The levels are expressed in Db relative to the maximum (on-axis) gain of the antenna.