Two equiangular beams are formed by one antenna plane, and a plurality of planes are combined to generate multiple beams. It becomes possible in this way to make the apparatus compact in size and to reduce the wind pressure against the antenna receives. Accordingly, a greater number of antennas can be mounted to one support structure, and the weight of the support structure can be substantially reduced.
申请公布号
WO9413031(A1)
申请公布日期
1994.06.09
申请号
WO1993JP01740
申请日期
1993.11.30
申请人
NTT MOBILE COMMUNICATIONS NETWORK INC.;KIJIMA, MAKOTO;YAMADA, YOSHIHIDE;EBINE, YOSHIO;KURAMOTO, MINORU