For example, the roll-out of the new third-generation wireless phones and related community-wide antenna RF emissions in the Netherlands caused almost immediate public complaints of illness.
例如,在荷兰随着第三代无线手机的推出和相关的覆盖社区的天线射频辐射,导致了几乎是立刻出现的的公众疾病抱怨。
The Antennae galaxies take their name from the long antenna-like "arms," seen in wide-angle views of the system.
触角星系因其长长的触角状旋臂而得名,用广角视野观察下这个“触角”很明显。
Nokia's device is somewhat less ambitious and is made possible thanks to a wide-band antenna and two very simple circuits.
诺基亚的这款手机倒没那种雄心豪情,它是采用宽带天线及两个非常简单的电路来达到目的的。
The narrow bandwidth property of a microstrip antenna is one of the important reasons to restrict its wide application.
微带天线的窄频特性是限制它广泛应用的原因之一。
In this paper, principle, design and test result of MMW wide beam antenna on flight vehicle is introduced.
本文介绍一种用于飞行器上的毫米波宽波束天线的原理、设计方法和实验结果。
Wide slot microstrip antenna is analyzed by means of finite-difference time-domain(FDTD) method.
借助时域有限差分法(FDTD)对微带宽缝天线的频率和带宽特性进行了分析讨论。
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。
When phased array radar operates in wideband wide scan condition, the antenna beam is dispersed and thus the distance profile is broadened.
相控阵雷达天线在进行宽带宽角扫描时,天线波束会“色散”,使得到的距离像展宽,从而降低了系统分辨率。
Wide beam width in horizon plane would be expected in antenna design for IR-UWB through-the-wall detection to cover most area of the room.
在脉冲超宽带穿墙检测与定位当中,要求天线在水平面内具有宽波束以达到对房屋内部区域的有效覆盖;
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 third antenna is a planar wide slot antenna.
第三种天线是一种新型的宽槽天线。
The time-domain pulse antenna has the ability to radiate and receive the fast changed transient signal, because this kind of pulse radiation antenna has very wide frequency range.
时域脉冲天线具有辐射和接收快速变化的瞬态脉冲信号的能力,这种脉冲天线能够覆盖很宽的频带。
A tuneable antenna is an antenna that can change resonance frequencies for effective reception of a wide range frequency bands.
一个可调谐天线是一个天线,可以改变一个广泛有效的频段接收共振频率。
The antenna was optimized in order to wide bandwidth and impedance matching.
为实现展宽频带、阻抗匹配等要求,对该移动终端天线进行了优化设计。
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。
Showing that frequency is little related to input impedance of the mutual-complementary antenna, antenna of this type is a ultra wide band one.
通过论证自互补结构天线的输入阻抗基本与频率无关的角度证明了该天线具有超宽带特性。
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。
A new kind of ultra wide band (UWB) planar antenna was designed.
设计了一种新型超宽带平面天线。
A new approach is presented by applying the H-shape two-array antenna of wide dipoles to replace director structure of short backfire antenna.
提出了用一种由宽偶极子构成的H型天线二元阵来取代短背射天线中的引向结构。
The invention provides an antenna having a relatively wide bandwidth of operation.
本发明提供了一种微带天线,该微带天线具有相对宽的操作带宽。
Therefore, an antenna stabilization platform is built for a high resolving power Airborne SAR to image continuously in wide area.
在运动补偿系统中,天线稳定平台是保证高分辨率机载SAR能大面积连续成像的基本条件。
Experiment results and many clinical examples suggest that the helical microwave antenna is a dependable, stable, safe and efficient one, and has a wide applicant future in clinical practice.
实验结果和多例临床应用证明:螺旋型天线稳定、高效、安全,在临床上用有着广泛的应用前景,建议螺旋型天线代替单极子天线作为研究方向。
The present invention provides a small, thin, and cheap foldable broadband antenna that is valid in a wide band and, moreover, can be manufactured at low cost, and a method of using the same.
一种小、薄且价格低廉的可折叠式宽带天线和一种使用所述可折叠式 宽带天线的方法,其中所述可折叠式宽带天线在宽的带宽内是有效的,此 外,可折叠式宽带天线可以以低成本进行制造。
The wide accumulating azimuth Angle is one of the main characteristics of low frequency UWB SAR, so the effect of the antenna pattern on the system performance cannot be neglected.
低频uwbSAR系统具有较大的方位向积累角,天线方向图非均匀性对系统性能的影响不能忽略。
The radiation pattern could be distorted seriously in wide band, thus how to keep the radiation pattern stable is a challenge in UWB antenna design.
由于天线方向图在宽带内的畸变通常比较大,因此保持辐射方向图的稳定性也是超宽带天线设计的一个难点。
A novel wide bandwidth and high gain microstrip antenna is presented.
本文提出了一种新型大带宽、高增益微带天线结构。
The OFP and OFD can not only improve the wide-angle scanning ability of the antenna, but also increase the engineering feasibility of the SFOC antenna system.
二者的确定不仅改善了SFOC天线系统的扫描特性 ,而且提高了它的工程可实现性。
In the antenna shaped-beam section, introduced narrow beam nulling and wide beam nulling.
在天线波束赋形部分,介绍了窄波束零陷和宽波束零陷。
The small-size wide-band antenna (103) further includes a stub conductor (17) as an impedance matching unit for matching the impedance between the radiation element and the power supply means.
小型宽带天线(103)还包括作为在辐射元件和电力供应单元之间进行阻抗匹配的阻抗匹配单元的短截线导体(17)。
The small-size wide-band antenna (103) further includes a stub conductor (17) as an impedance matching unit for matching the impedance between the radiation element and the power supply means.
小型宽带天线(103)还包括作为在辐射元件和电力供应单元之间进行阻抗匹配的阻抗匹配单元的短截线导体(17)。
应用推荐