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1. 发明申请

WO2008148404A1 WIRELESS NETWORK DEVICE INCLUDING A POLARIZATION AND SPATIAL DIVERSITY ANTENNA SYSTEM 审中-公开
标题翻译：无线网络设备，包括极化和空间多样性天线系统
公开(公告)号：WO2008148404A1
公开(公告)日：2008-12-11
申请号：PCT/EP2007/004932
申请日：2007-06-04
申请人： PIRELLI & C. S.P.A. , BARBIERI, Daniele , BOFFA, Vincenzo , GERMANI, Simone , RICCI, Fabrizio , STORTO, Marco
发明人： BARBIERI, Daniele , BOFFA, Vincenzo , GERMANI, Simone , RICCI, Fabrizio , STORTO, Marco
IPC分类号： H01Q21/28 , H01Q1/22 , H04B7/10
CPC分类号： H01Q21/24 , H01Q1/2291 , H01Q21/28 , H04B7/10
摘要： The present invention relates to a wireless access gateway (1) for communication of wave signals at radio frequencies within a frequency band, the access gateway being enclosed in a housing (2) and comprising a bottom wall (13) and a main circuit board (7) overlying said bottom wall (13) and having an upper surface substantially parallel to the bottom wall. The gateway is equipped with an antenna system comprising at least two antennas: a first linearly polarized antenna (4) for propagating a first wave signal along a first polarization axis comprising a first radiating element extending along a first longitudinal axis lying on a first plane substantially parallel to the base plane, and a second linearly polarized antenna (5) for propagating a second wave signal along a second polarization axis oriented perpendicularly to the first polarization axis, the second antenna comprising a second radiating element extending along a second longitudinal axis lying on a second plane oriented perpendicularly to the first plane. The first and second antennas are positioned relative to each other at a distance of at least λ2, where λ is the wavelength corresponding to a radio frequency within the frequency band. The two antennas are physically separated within the housing of the gateway so as to achieve spatial diversity and they are oriented with orthogonal polarizations so as to achieve polarization diversity. Given that the polarization axes of the two antennas are orthogonal, lie on perpendicular planes and one of one of the antennas is arranged on a plane parallel to the bottom wall, the antenna system is able to maintain communication quality when the access gateway is placed in different operating positions.
摘要翻译：无线接入网关技术领域本发明涉及一种无线接入网关（1），用于在频带内以无线频率通信波信号，所述接入网关被封装在壳体（2）中，并且包括底壁（13）和主电路板 7）覆盖所述底壁（13）并且具有基本上平行于底壁的上表面。网关配备有包括至少两个天线的天线系统：用于沿着第一偏振轴传播第一波信号的第一线性极化天线（4），包括沿着位于第一平面上的第一纵向轴线延伸的第一辐射元件以及第二线性极化天线（5），用于沿着垂直于所述第一偏振轴定向的第二偏振轴传播第二波信号，所述第二天线包括沿着位于所述第一偏振轴上的第二纵向轴线延伸的第二辐射元件垂直于第一平面定向的第二平面。第一和第二天线相对于彼此定位在至少≥2的距离处，是对应于频带内的射频的波长。两个天线在网关的外壳内物理分离，以实现空间分集，并且它们以正交偏振方向定向，从而实现极化分集。假设两个天线的偏振轴是正交的，则位于垂直平面上，并且天线中的一个天线布置在与底壁平行的平面上，天线系统能够在接入网关放置时保持通信质量不同的操作位置。

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