This means that the SETI receiver was perched permanently above the Arecibo dish at the base of the aging line feed antenna.
也就是说SETI的接收器永久的占据着阿雷西博碟型天线上老化的线性馈源的底部。
Feed network is an important part of shortwave multimode multifeed antenna system. The design of feed network is a pivotal technique in the process of projecting antenna system.
馈电网络是短波多模多馈天线系统的重要组成部分，因此，馈电网络的设计是多模多馈天线系统设计的关键技术，直接分析其结构非常困难。
One factor is that unlike the old line feed antenna, which was hanging by itself, exposed to the tropical elements, the multi-beam receiver is located inside the distinctive-looking Gregorian dome.
与老的线性反馈天线暴直接露在热带环境中不同，多通道接收器安放在富有罗马特色的穹顶中。
A sphere, in contrast, concentrates its beam to a line - which is why a "line feed" antenna was originally used at Arecibo.
球形的则不同，它会把波束汇聚到一条线上——这就是为什么阿雷西博先前使用的是“线反馈”天线。
A new broadband slot antenna with a fan-shaped microstrip feed is presented, and the return loss curve and radiation patterns of the antenna is simulated in this paper.
介绍了一种新型的采用扇形微带馈源的宽带缝隙天线，给出了反射损失曲线和辐射方向图。
According to specifications, sea clutter testing 2.4 m antenna system's principium is given, and the mechanism design of antenna reflector, antenna pedestal and feed system is studied.
本文根据技术指标要求，给出了海杂波测试2.4米天线系统的工作原理，探讨了天线反射体、天线座架及馈源系统的结构设计。
The remote sensing satellite earth station is composed by antenna, feed subsystem , servo subsystem, receiver, station manage subsystem, modulator, demodulator, recorder and quick view equipment.
遥感卫星地面站主要由天馈线、伺服分系统、接收分系统、站控分系统、调制器、解调器、记录设备和快视设备等构成。
The elliptical planar monopole antenna has the advantages of simple structure, wide band and relatively simple feed, so it can meet the demands of wide-band and high-gain at the same time.
椭圆形平板天线有结构简单、频带宽、馈电相对简单等优点，可以满足小型化天线同时具有宽频带和高增益的要求。
It is concluded that an offset feed parabolic antenna has the advantage in side lobe suppression over central feed parabolic antenna.
结论显示：偏角馈入抛物面天线较中心馈入抛物面天线在抑制远旁瓣方面有优势，在做低仰角扫描时不会产生远旁瓣回波；
The major work of this thesis is to design and make a good LPDA(log-periodic dipole antenna)as the feed of the ten-meter parabolic reflectors at the Yunnan Observatory.
文中所作的主要工作是为云南天文台十米抛物面设计、制造一付好的对数周期偶极子天线（LPDA）作馈源。
To obtain the balanced feed for the dipole antenna driven by a coaxial transmission line, a coplanar waveguide fed structure is used.
为获得在同轴馈电时天线振子的平衡馈电，该设计使用了共面波导馈电结构。
Balanced micro-strip line is utilized as feed line, printed dipole is adopted as radiation element, and a matching network is employed for tuning the input impedance of the antenna.
该天线采用平衡微带线作馈线，以印刷振子作为辐射单元，末端采用匹配电路对其输入阻抗进行匹配。
A new type of broadband printed twin dipole antenna is proposed in this paper. Corresponding feed structure of broadside coupled parallel line is also designed.
本文给出了一种新型双偶极子型宽带印制天线，并设计出相应的类平行宽边耦合双线双面馈电结构。
The adjustment method of feed aperture position in radar antenna and location mode of the feed aperture are analysed by taking two kinds of radar antenna as example in this paper.
以两种雷达天线为例，对天线馈源口面位置的调整方法和口面的定位方式作了分析，提出设计与制造中需要注意的有关问题。
The thesis deeply analyzes the factors which affect the bandwidth of microstrip antenna and studies the influence of coaxial probe which is applied to feed to microstrip antenna.
深入分析了影响微带天线带宽的因素，研究了同轴探针馈电微带天线的同轴探针对微带天线带宽的影响。
From the batwing antenna feed system, the paper analyzes that he batwing antenna feed can solve the impedance shift, and the principles of transformation of balance and imbalance.
文章拟从蝙蝠翼天线馈电系统入手，分析讨论其能够解决阻抗变换和平衡与不平衡转换原理。
Rotation joint is a pivotal part of radar feed system, before it is installed on base of radar antenna, it must be made a experiment of running in for 24 hours.
转动交连是雷达馈线系统中的一个关键件，它在被正式安装到雷达天线座上之前需进行24小时跑合试验。
The radiating element of array antenna is air dielectric microstrip patch antenna, which has high efficiency, and the feed network is low loss air strip, which can reduce the loss of the feed line.
阵列天线辐射单元采用空气介质的微带贴片天线，辐射效率高；阵列天线的馈线网络采用低损耗的空气带状线形式，降低了馈线损耗。
The antenna is applicable to the array antenna element with broadband single polarization and dual polarization or antenna feed source with reflecting surface.
该天线可应用于宽频带单极化、双极化阵列天线单元或反射面天线馈源。
This paper makes research on parabolic cylindrical antenna with feed for linear arrays, generates aperture-field analysis methods and simulation results of parabolic cylinder and feed.
本文对一种直线阵馈电抛物柱面天线进行了研究，并给出了抛物柱面和馈源的口径场分析方法以及仿真结果。
Fundamental form and some kinds of deformations about TEM horn antenna which often be used in the time domain have been summarized, some kinds of its difference feed means have been introduced.
对时域中常常采用的TEM喇叭天线的基本形状和几种变形进行了综述，并给出了几种不同的馈电方式。
In the methods, single feed, more feed and several patches consisting circular polarization are used to feed the antenna and improve the impendent or ar bands.
这些方法分别采用单点馈电，多点馈电或多元组合实现圆极化，均有效拓展了圆极化天线的阻抗匹配带宽和圆极化轴比带宽。
In this paper, the design of planar antenna feed system of high-speed mobile radar and a test method for watertightness are presented.
论述了高机动雷达平面阵列天线馈电系统的水密性设计及试验方法。
Array-fed parabolic reflector and shaped reflector with a single feed are usually used to be contoured beam satellite antenna.
卫星波束赋形天线普遍采用阵馈抛物反射面天线和单馈成形皮射面天线。
Antenna element, feed probe; dielectric spacer, antenna and method of communicating with a plurality of devices.
天线元件，探测器；间隔器，天线和与多个装置通信方法。
The research of this article is mainly on a single feed slot loaded dual-band dual-polarized antenna.
本文主要对一种单端口馈电的缝隙加载双频双极化微带天线进行研究。
The control algorithm of attitude follow-up stabilization and tracking antenna platform adopts position feed-forward control, speed control and position feedback control.
姿态随动稳定跟踪天线平台的控制算法，采用位置前馈、速度和位置反馈控制。
This paper designs a S-band feed system for HPM antenna, which consists of a dual-mode conical horn and a rectangular-circular mode convertor.
本文设计了一种S波段高功率微波天线的馈源系统，该系统由双模圆锥喇叭和矩-圆模式转换器两部分组成。
In this embodiment, the feed conductor 106 is part of the antenna length.
在该实施例中，馈送导体106是天线长度的一部分。
On the base of the amplitude and phase distribution derivated from the synthesis procedure, the radiation pattern is synthesized and the feed system for the phased array antenna is designed.
在综合求解阵列天线幅相分布的基础上，分析计算了阵列天线的辐射特性，设计了相控阵的馈电网络。
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