发明名称 |
ANTENNENSYSTEM |
摘要 |
A communications station for generating or receiving an angularly dispersed array of radiation beams, comprising an array of radiating elements (100) defining an array antenna (1); and a beam former (120), the beam former comprising a passive network having a first side (X) carrying a plurality of beam ports for electrical signals corresponding to the beams and a second side (Y) carrying a plurality of antenna ports corresponding to the radiating elements, each beam port being connected to a plurality of antenna ports via a network (50) of power divider (52) and phase shifter (53) components, the phase shifts of which are in integer multiples of a predetermined constant, so as to generate the array of beams; in which the array antenna (1) has triangular or hexagonal symmetry and the array of beams has triangular or hexagonal symmetry. <IMAGE> |
申请公布号 |
DE69514650(T2) |
申请公布日期 |
2000.07.13 |
申请号 |
DE1995614650T |
申请日期 |
1995.03.30 |
申请人 |
INMARSAT LTD., LONDON |
发明人 |
MUNOZ-GARCIA, SAMUEL;NOMOTO, SHINICHI;POSKETT, PETER;MULLINS, DENNIS;HUTCHINSON, BEN;CHOMET, PATRICK |
分类号 |
H01Q3/36;H01P1/203;H01P5/16;H01Q1/28;H01Q3/26;H01Q3/38;H01Q3/40;H01Q21/06;H01Q21/22;H01Q25/00;H04B7/15;H04B7/204 |
主分类号 |
H01Q3/36 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|