I am using a three - band five - element beam 我用的是三波段五单元定向天线。
2.
In radiocommunications , the radiation in a lobe of a directional antenna 在无线通信技术中,定向天线以某一波瓣辐射的电磁能。
3.
Directional antennae allows the dsas to reduce background and wind noise without the need for a bulky parabolic dish 定向天线，让员，以减少背景与风噪声，而不需要为笨重，抛碟。
4.
It uses modulated waveforms and directive antennas to transmit electromagnetic energy and extract target information from echoes 雷达使用调制的波形和定向天线发射电磁能量,并从回波中提取目标信息。
5.
Real geek types have been known to cruise around silicon valley with a laptop and directional antenna , trying to pick up networks 真正的电脑怪杰带着便携式电脑和定向天线在硅谷附近游荡，试图接入网络。
6.
This paper presented a new method which is usable when the base stations ' antennas are directional or omni - directional antennas by using a new objective function 摘要采用新的目标函数提出能够同时适用于定向天线和全向天线的场强定位算法。
7.
This paper is worked to solve the phase center of the directional antenna , accordingly to giving some references for the interception and direction - finding system 本文是为了解决定向天线的相位中心问题,为侦测合一系统设计提供参考而展开研究的。
8.
The paper makes a review on the recent advance in this material , with a focus on the applications of the metamaterial in the military use , such as the radar image , directional antenna and absorbing 详细的回顾了这种新型人工电磁材料背景、研究进展，并着重介绍了这种材料在微波频段雷达成像，定向天线，隐形等军事领域的应用前景。
9.
In the interception and direction - finding system , the phase center of the antenna is very important to the direction - finding , however , the phase center of directional antenna is few studied in the home and overseas 在侦测合一系统中,天线系统的相位中心对于系统测向有着至关重要的作用,但是目前国内外对于定向天线的相位中心研究的非常少。
10.
In addition , based on the second order hilbert curve , some modifications have been done . with different kinds of substrates , the pattern - reconfigurable antennas and the broadband directional antennas are designed 第四部分,针对hilbert二阶分形曲线并做一定的改进,利用不同的介质材料,设计出方向图可重构平面天线以及宽带的定向天线,完成了部分原理性实验。
