first antenna

The measured results of the first antenna verify the feasibility of the introduced design method .

天线的测试结果验证了本文所提出设计方法的可行性。

The design theory of the first antenna is derived from an example of two-element array pattern multiplication theorem .

第一副天线的设计理论是基于二元阵天线方向图相乘原理的一个特例。

In the first segment for antenna design , the antenna unit structures and its parameter are analyzed .

第一部分的微带天线阵的设计中，首先是理论分析线元的基本结构及其相应参数的分析。

In the distribution system design , first setting the antenna port power , accounting distribution system power , and determining the number of RRU needs .

在分布系统设计中，先设定天线口功率对分布系统实施功率核算，确定RRU需求数量。

Printed antenna has become the first choice for dual-frequency antenna design due to its low cost and simple structure .

印刷天线以其低廉的成本和简单的结构及其良好的制作一致性成为天线的首选。

First , a microstrip antenna element is designed . Based on the element , an sub-array is simulated .

本文首先根据系统指标，设计出了天线单元，之后设计出天线子阵。

Especially , the first side-lobe level of antenna array can be suppressed largely , but the cross-po .

对于阵列天线，还可以利用高阻抗表面来抑制第一副瓣电平。

Secondly , the author improves the distributed antenna array and gives the concept of the distributed switched antenna array for the first time . The antenna array will make each diversity branch receive almost equivalent signals and obtain satisfied diversity gain .

接着对分布式阵列天线进行了改进和优化，首次提出分布式开关阵列天线的概念，它可以使各分集支路接收到的信号强弱相当，最终获得良好的分集增益。