查询词典 antenna

Taking example for the third-order differential Rayleigh pulse radiated by the dipole antenna which is resistance loaded, the influences of antenna on the design of pulse waveform in ultra-wideband system are analyzed.

以三阶微分Rayleigh脉冲通过电阻加载偶极天线辐射的情况为例，研究了天线对超宽带系统脉冲信号波形设计的影响。

The impacts of printing process and curing condition on antenna resistance are shown as follows: higher resistance of a printing antenna is generated not only by higher print pressure and velocity, which result in inadequate ink transfer, but also by lower curing temperature and shorter curing time, which can result in imperfect combustion of organic vehicles in silver ink.

印刷工艺与固化条件对天线电阻的影响主要表现在：较高的印刷速度与印刷压力会使银浆转移不充分，并导致天线电阻增加；而较低的固化温度、较短的固化时间也会使银浆中的有机载体不能充分燃烧，从而增加天线电阻。

The relationship between the screen mesh and the theoretical and practical ink film thickness was analyzed based on the main influencing factors of the ink film thickness by screen printing. A calculation model for the ink thickness was established based on the screen under static and compressive deformation. The relation curve between the screen mesh and the ink film thickness was fitted and the suitable printing craft parameter was chosen to print two kinds of RFID tag antennas. The fluctuation of the antenna resistance was analyzed to demonstrate the reliability of the passive RFID tag antenna manufactured by screen printing technology.

结合丝网印刷墨层厚度的各主要影响因素，分析了理论墨层厚度和实际墨层厚度与网版目数的关系，建立了网版静态及受压变形两种状态下的墨层厚度计算模型，拟合了网版目数和实际墨层厚度之间的关系曲线，并选择合适的丝网印刷工艺参数，印刷制作了两款无源RFID标签天线，通过天线电阻值的波动情况分析，论证了用丝网印刷工艺制作无源RFID标签天线的品质可靠性。

Furthermore, while not shown for ease of illustration in FIG. 4, configuration information from control storage 250 may further be coupled to power amplifier 256 and RF filters 254, an antenna switch 257 and an antenna 258, to control these components as desired.

而且虽然为了图4描述简单，没有显示出来，来自控制存储器250的配置信息还可耦合到功率放大器256和射频滤波器254，天线开关257和天线258，以便根据需要来控制这些器件。

Ultra-wideband ; photoconductive switch ; time-domain antenna ; bipolar variable angle antenna

超宽带；光导开关；时域天线；双极变张角天线

Additionally, we propose and design a RF front-end antenna switch module, which integrates an active component, two passive components, and an embedded antenna into a RF front-end System-on-Package.

在本篇论文的后段，则是利用低温共烧陶瓷技术来设计一射频前端天线切换模组，此模组把主动元件、被动元件以及内嵌式天线整合起来，形成一系统封装之射频前端模组。

Antenna switch is also has high entry barriers. Although its price is rather lower than PA and receiver, usually requiring SiP packaing and LTCC underlay. Globally, antenna switches are mainly supplied by Japanese vendors such as MURATA, Renesas and New JRC etc.

天线开关也是一个高门槛领域，虽然其价格远低于PA和收发器，通常要使用LTCC衬底和SiP封装，全球主要由日本厂家供应，有村田、瑞萨和新日本无线。

The expression of antenna temperature that this paper has derived is based on the situation that the main beam of the antenna is not on the axis, so it has universality.

本文所推导得出的天线温度TA 的表达式是建立在天线波束中心不在坐标轴上这种情况之上的，因此更具有一般性。

In this paper, the wide beam antenna array is used as the antenna of an airborne SAR with ultrahigh azimuth resolution.

该文将宽波束天线用于超高方位分辨率机载SAR，计算了天线的性能指标和SAR的系统参数。

Single beam focusing lens antenna is the basis and crux of the multiple beam focusing horn lens antenna.

本文作者提供了喇叭天线的设计程序，并用它设计了单波束点聚焦透镜天线中的喇叭天线。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。