会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Self contained antenna test device
    • 自包含天线测试装置
    • US4468669A
    • 1984-08-28
    • US387098
    • 1982-06-10
    • Shii-Shyong WangRuey-Shi Chu
    • Shii-Shyong WangRuey-Shi Chu
    • G01R29/10G01R29/08
    • G01R29/10
    • Twin lead transmission lines are positioned in close coupling relationshipo linearly polarized and planar arrays of antenna radiating elements to provide a self contained instantaneous antenna test and measurement system. Near field energy from the transmission lines is coupled to the transversely arranged antenna dipole elements to permit testing without degrading antenna performance. Signals induced on the radiating elements are of uniform amplitude and linearly changing phase equivalent to those of a far field plane wave. Various tests such as antenna failure and performance characteristic measurements, including gain, pattern and phase difference, can be made automatically. A balanced power divider distributes RF power equally to the twin lead transmission lines and a system processor controls phase shifter scanning elements and analyzes the various output parameters to provide the desired test and measurement information concerning the selected array of dipoles and components.
    • 双引线传输线位于与天线辐射元件的线性极化和平面阵列紧密耦合的关系中,以提供自包含的瞬时天线测试和测量系统。 来自传输线的近场能耦合到横向布置的天线偶极元件,以允许测试而不降低天线性能。 在辐射元件上感应的信号具有与远场平面波相等的幅度均匀和线性变化的相位。 可以自动进行各种测试,如天线故障和性能特性测量,包括增益,模式和相位差。 平衡功率分配器将RF功率均等地分配给双引线传输线,并且系统处理器控制移相器扫描元件并分析各种输出参数以提供关于所选择的偶极子和组件阵列的期望的测试和测量信息。