According to the specific characteristics of monopole antenna, feeding signal may be multi reflected at the terminals, which could seriously damage the radiation characteristics.
基本的单极子天线由于其本身的特性会在天线内部对馈入的信号进行多次反射，严重制约着它的辐射性能。
The typical EMI among the antennas of multi-vehicle was studied through communication antenna in this thesis.
本文以通信天线为对象，对典型的多车集群系统车际天线间电磁干扰特性作了研究。
Based on the theory of Flexible multi-body dynamics, the model of deploy-able antenna is established, and the dynamic response and analysis calculation to large space deployable antenna is done.
基于柔性多体动力学理论，对可展开天线进行了系统建模和动力响应计算及分析。
It is proved that the locations and the total number of the interference sources influence greatly the performance of the multi-beam antenna.
证明了干扰源的位置及数目对卫星多波束天线的性能有很大的影响。
This paper puts the emphasis on the application of the fractal antenna techniques to multi-frequency wireless communication.
本文重点研究分形天线在多频无线通信中的应用。
FIG. 1 is an illustration of one exemplary embodiment of a multi-band antenna system 100.
图1例示了多波段天线系统100的一个示例性实施例。
It is also understood that the multi-band antenna system 100 May also be tuned to operate in other frequency bands.
还应当理解，多波段天线系统100还可被调谐为在其它频段内操作。
Main task of this dissertation is designing a multi-beam lens antenna to both improve the resolution and reduce the imaging time of the passive millimeter-wave imaging system.
本文的主要任务是针对提高毫米波无源成像系统的分辨率和减小成像时间而设计一个多波束透镜天线。
To increase the radiation efficiency and broaden the operation bandwidth, an aperture-coupled microstrip antenna of high temperature superconductor with multi-layer substrates is designed.
为提高辐射效率和扩展工作带宽，对一种口径耦合馈电的多层介质高温超导微带天线进行了设计。
The radar with the unique advantages of plasma reflector antenna is a new, multi-functional, high-performance electronic scanning radar system.
由等离子体反射面天线构成的雷达系统，是一种多功能、高性能的新型电扫描雷达系统。
The multi-band antenna system 100 can be incorporated into a wireless communication device as an internal antenna system.
该多波段天线系统100可作为内部天线系统被并入在无线通信设备中。
The multi-band antenna system 100 May be implemented as an internal antenna with broadband characteristics operating in multiple frequency bands.
该多波段天线系统100可实现为具有在多个频段内操作的宽带特征的内部天线。
This paper describes the test method of active multi-beam antenna pattern by using high precision 3-axis antenna test turntable and the test procedure of antenna 3d pattern.
论述了利用高精度三轴天线测试转台，测试有源多波束天线立体方向图的方法。
First, this article introduces some theoretical methods and numerical methods to analyze microstrip antenna and sum up some techniques for miniaturization, multi-frequency and broadening the band.
本文首先介绍了微带天线的理论分析方法和数值分析方法，并总结了微带天线小型化、多频段以及展宽频带的各种技术。
The results show that the developed antenna choke ring can effectively reduce the multi-path effects and can improve the interference-resistant ability of the single frequency GPS receiver, NTSCGPS-1.
结果表明，研制的天线扼流圈可有效地削弱多路径效应的影响，并可明显地改善单频GPS接收机ntscgps - 1的抗干扰能力。
The fractal antenna based on space self-filling ability and self-similarity ability, presents some characteristic such as electrically small size, wideband and multi-frequency.
基于分形的自相似性和空间填充特性设计的分形天线，具有电小尺寸、宽频和多频等特性。
Multi-beam antenna is a key technology in the satellite mobile communication system.
多波束天线技术是卫星移动通信系统中的关键技术之一。
Based on the principles that lateral offset-focus feed makes the antenna pattern deflect an angle, the multi-beam antenna can be used in passive imaging system.
本文首先分析了焦平面阵列馈源横向偏焦产生多波束的原理，并采用面电流法对偏焦抛物面天线方向图进行了编程计算。
The third Generation mobile communication system includes highly effective channel encoding-decoding, software radio, smart antenna, multi-user detection and interference cancellation etc.
第三代移动通信系统的关键技术包括高效信道编译码技术、软件无线电技术、智能天线技术、多用检测和干扰消除技术等。
The multi-beam antenna which is one of the smart antenna possesses the advantages which the traditional antenna don't have.
多波束天线是智能天线的一种，具有传统天线所不具备的优越性。
The antenna is composed of three antenna parts: the cavity-backed discone antenna, the short-circuited structure between the top plate of the discone and ground, and the multi-plate antenna.
该天线由含有背腔结构的盘锥天线、盘锥顶盘与地板之间的短路结构、以及多板天线三个部分复合而成。
Then the definition and structure of smart antenna are introduced, including multi-beam and adaptive array antenna.
阐明了智能天线的定义、组成，介绍了多波束天线和自适应天线阵。
Another advantage is, most obviously, that the multi-beam antenna looks at seven different points simultaneously.
另一个很明显的优势，多波束天线在同一时刻观察着七个不同的方向。
Qualitatively analyze the existing problem of the antenna height scanning for the EUT with radiating characteristics(single lobe and multi-lobes)in the measurement method.
对具有不同辐射特性（单波瓣和多波瓣）的受试设备天线高度扫描问题进行了定性分析。
In one exemplary embodiment, the multi-band antenna system 100 is tuned to operate within two general radio frequency ranges which are generally referred to as a low band and a high band.
在一个例示的实施例中，多波段天线系统100被调谐为在两个通常的射频范围内操作，这两个通常的射频范围通常称作低波段及高波段。
The adaptive nulling and interference localization based on beam-space of satellite planar array multi-beam antenna are investigated and some simulation results are also presented.
研究了基于卫星平面阵列多波束天线波束空间的自适应调零和干扰源定位技术并给出了仿真结果。
FIG. 5 is an exemplary return-loss plot for the multi-band antenna system.
图5是用于多波段天线系统的示例性回波损耗绘图。
FIG. 2 illustrates the multi-band antenna system 100 showing the conductors elements 102, 104 in the multi-band antenna system 100 operating in a low frequency band.
图2例示了多波段天线系统100，其表示在低频段中操作的多波段天线系统100中的导体元件102、104。
The large Hoop Truss Deployable Antenna (HTDA) in the space, with large aperture, light mass, big flexible character and so on, is type flexible multi-contact system.
空间大型环形可展天线具有展开口径大、质量轻、柔性大等特点，是一个典型的多柔体结构。
Therefore, a single compact antenna that has an impedance bandwidth wide enough to cover the operating frequency bands of the multi-band wireless communication system is more desirable.
对于这种无线多频通信系统来说，具有紧凑结构并能覆盖这些通信频段的带宽的天线是人们所希望的。
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