The inner layer of the antenna contains nanotubes with a small bandgap, and nanotubes in the outer layer have a higher bandgap.
天线内层是窄带隙的纳米管,与此相反,外层的纳米管则具有较宽的带隙。
This is a general design method for optimizing an electrically small antenna because it does not deal with concrete configuration of antennas.
整个分析过程不涉及具体天线的结构,因而是研究电小天线补偿电路的一般方法。
An active antenna consisting of electrically small antennas and a negative impedance changing circuit is analyzed in this paper.
本文对用一种负阻抗变换电路同电小天线导线相结合构成的有源天线进行了理论分析。
Propose a method for mutual coupling compensation which is not limit to microstrip arrays and can be used in any small antenna arrays of arbitrary type and arrange.
这种计算和补偿互耦的方法不限于微带阵列,它可以应用到任意类型任意排列的小型天线阵中。
This paper makes a brief discussion on the harm upon human health by radio-frequency electromagnetic field and electromagnetic contamination problems of small power television emission antenna.
本文就射频电磁场对人体健康的危害以及小功率电视发射天线的电磁污染问题作了简要的论述。
S. embassy in Beijing, including the American embassy, is usually small agent stood, can receive the capital city with the shortwave communication antenna.
设于海外的美国使馆,包括驻北京的美国使馆,通常是小型特工站,装有能接收首都城市的短波通讯的天线。
The thin thickness small diameter brass antenna casing is introduced and plastic deformation theory in tension fracture process is analyzed.
介绍了开发研制的黄铜薄壁小直径天线套管,并对拉伸断裂的塑性变形理论进行了分析探讨。
小天线。
Planar Archimedean antenna has some advantages as wideband, small volume and good performance in circularly polarizing, so it has broad appliance prosperity.
平面螺旋宽带天线具有频带较宽、体积较小、圆极化性能较好等特点,应用范围很广。
The electric-magnetic vibrator combined UWB antenna (EMV-UWB) that constructed of electric and magnetic vibrator, has the characters of small size and high radiated efficiency.
电-磁振子组合型UWB天线集电振子和磁振子于一身,具有尺寸小、辐射效率高的特点。
The test result shows that the designed small loop antenna meets the rigorous requirements of TPMS with reliable data transmission.
试验结果表明,设计的小环天线数据传输可靠,满足TPMS的要求。
This small, compact, non-clamshell design soon became standard for many Nokia handsets; you rarely see an external cell phone antenna these days.
结构紧凑的直板设计很快成为许多诺基亚手机的标准,今天你很难看到一台外接天线的手机。
Offset paraboloid antenna has widely been utilized in small aperture antennas.
偏置抛物面无线在小口径天线中得到了广泛的应用。
The antennas can be made very small, because a relatively small bandwidth is sufficient for an individual antenna, when there is a plurality of antennas.
天线的尺寸可以制造的很小。这是由于当有许多天线时,相对较小的频带宽度对于各个天线是足够的。
It shows excellent universal proporties and it has passed the proporties tests as well as flight test, now this type of antenna has been manufactured in small batchs.
该天线综合技术性能优良,现已通过各项性能检测和试飞,并投入小批量生产。
Since the double-ridged horn antenna owns many seductive characteristics, such as ultra broadband, relatively small size, high calibre efficient and gain etc.
由于双脊喇叭天线不仅具备超宽带特性,还具有体积小、增益和口径效率高等优点,因此本文选双脊喇叭天线作为所要设计的超宽带天线。
By means of frequency selective surface (FSS) instead of metallic surface, a stealthy reflector antenna with small radar cross section (RCS) is constructed.
利用频率选择表面(FSS)代替普通金属面构成选频反射面隐身天线。
The antenna is electrically small, has wide bandwidth and good gain characteristics, is efficient and not easily detuned.
该天线为小型电结构,其具有宽的带宽和好的增益特性,具有高效率且不易于失调。
An intelligent calibration system with temperature of blackbody naturally varying used for small antenna MMW radiometer was developed.
研制了的小口径天线毫米波辐射计自然变温智能定标系统,该系统实现了所有数据的自动采集与分析。
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。
Diversity antenna which is adapted for mobile station needs compact antenna configuration, high isolation and small correlation coefficient between multiple ports.
适用于移动的台分集天线要求紧凑的天线结构,端口之间较大的隔离度以及较小的相关系数。
Micromachined RF-MEMS antenna, one of the key devices in RF-MEMS, has small size, light weight, stable quality and other merits; it can be integrated with other circuit element.
采用微机械技术研制的RF -MEMS天线是RF - MEMS系统的关键器件之一,它不但具有体积小、重量轻、性能稳定等优点外,还能和其他电路元件集成在一起。
Then, based on the end-fire array theory, a small broadband twin-whip antenna with big forward to backward ratio is designed.
基于端射阵理论,优化设计了一副小型宽带、具有大前后比的双鞭天线,并以此作为阵列天线的基本单元组成六元均匀线阵。
This antenna is simple in structure and small in size, and can be conveniently integrated in various mobile communication systems.
该天线结构简单,尺寸小,便于集成在多种移动通信系统中。
Although the planar spiral antenna has characteristics of wide bandwidth, small volume, wide main beam and easy to be mounted, it still can not meet the needs of practice usages.
平面螺旋天线虽然具有频带宽、体积小、主瓣宽、易封装等特点,但是在具体应用中常常不能适应实际的需要。
The small electrical antenna is characteristic of a low input impedance and a low efficiency.
传统的电小天线其特点是低输入电阻和低效率。
A small knob or head-shaped part, such as a protuberance of a bone or the tip of an insect's antenna.
一小块球状突出物或头状部分,如一根骨头的突起或一个昆虫的触角的顶端。
Keep your antenna out for the thousand-and-one small but significant substitutions you can make.
随时伸出触角,探索各式各样小兵立大功的饮食替代方式。
The antenna features small size, simple and compact structure. Meanwhile it is inexpensive and has practical significance.
设计的天线结构简单、尺寸紧凑,价格低,具有很高的实用价值。
The ceramic technology by Pulse allows for extremely small antenna size without compromising rf performance.
陶瓷技术允许极其微小脉冲天线尺寸的前提下射频性能。
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