大学英语词汇短语释义解析及例句 directional antenna


释义：

directional antenna [电讯] 定向天线

例句：



Do-It-Yourself 2.4g wireless networks to do directional antenna!

自己动手做2.4G无线网络定向天线！



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。



Using a directional antenna, the device shoots data to a receiving antenna as far as 60 miles away.

利用定向天线，这种设备发射数据到远在60英里外的接收天线。



The effect of directional antenna on the performance of DSR routing protocol is studied in this paper.

本文研究了方向性天线对DSR路由协议性能的影响。



A parallel feed patch antenna array is designed as the omni-directional antenna of the base station antenna.

针对中心站用的全向天线的高性能要求，设计了并行馈电的天线阵列。



While mid-wave antenna is mostly iron tower antenna, we do not use directional antenna except that we need special service in special area.

中波天线大部分采用铁塔天线，非特殊地形或特别要求的服务区外，均采用不定向天线。



Through the adjustment and optimization of the antenna, higher antenna gain is achieved, to meet the requirement of high-gain omni directional antenna.

本文通过对天线的调整与优化，实现了天线增益的提高，满足了全向高增益的要求。



This paper introduces the anti-vibration design, distance-regulation device design and the die design of foaming body in an omni-directional antenna pedestal.

介绍了某全向天线座的抗振设计、距离调节装置设计和发泡体的模具设计。



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。



And then time slot allocation algorithms and routing protocols based on directional antenna are designed for IFDL. At last performance of the network is simulated with OPNET.

然后设计、提出了基于定向天线的适用于机间数据链的时隙分配算法及路由协议并利用OPNET仿真软件验证了网络性能。



For the directional antenna and wireless channel characteristics, there are many directional antenna based access control protocols have been proposed to achieve channel spatial reuse.

针对定向天线和无线信道的特点，有许多基于定向天线的接入控制协议被提出来，以实现信道的空分复用。



In order to effectively use directional antenna space division multiplexing features, while reducing some of its directional influence to bring the need to propose a new wireless MAC protocol.

为了有效地利用定向天线的空分复用的特点，同时减少由于其方向性带来的一些影响，需要提出一种新的无线MAC协议。



The all-directional antenna of the invention adopts a low-profile structure, and has good stability, simple preparation process, low cost, extremely high practical value and wide market prospect.

本发明全向天线采用低剖面的结构，稳定性好，且制作工艺简单，成本低，有很高的实用价值和广阔的市场前景。