查询词典 indoor antenna

The distribution of electromagnetic field inside a microstrip antenna as well as the characteristics of resonance and impedance and radiation of the microstrip antenna are analyzed by means of the ratio.

并利用此概念来分析加载短路钉微带天线内部的电磁场分布和谐振特性、阻抗特性以及辐射特性等。

The proposed antenna consists of a rectangular metal patch on a printed circuit board fed by a 50- coplanar waveguide. By cutting a C-shaped slot in the rectangular radiating patch,a frequency band notch will be created. The proposed antenna yields an impedance bandwidth of 3.1-10.6GHz with VSWR,except the bandwidth of 5-6GHz for WLAN.

天线采用印刷电路板上的矩形贴片作为辐射单元，并由同一面上的共面波导馈电，通过在矩形贴片上开一个C形槽来实现陷波功能，电磁仿真软件Ansoft HFSS10的仿真结果显示，合适地选择C形槽的尺寸可以调整陷波的中心频率和带宽。

In the antenna system, a dual-reflector antenna with two paraboloids is fed by the beam waveguide feeding system formed by three reflectors, realizing quick scanning of the beam.

该天线利用由三面反射镜组成的波束波导对一个由两个抛物面镜组成的双反射面天线进行馈电，实现了波束的快速扫描。

In this illustrated embodiment, the dipole antenna structure is a folded dipole antenna 104 having a first and second bend.

在所例示的实施例中，偶极天线结构是具有第一和第二弯曲的折叠偶极天线104。

The folded dipole antenna is probably only ever seen as a TV antenna.

被折叠的偶极天线被折叠的偶极天线大概曾经只被看见作为电视天线。

Replacing line cord antenna with a folded dipole antenna usually makes a big improvement.

替换电源软线天线用被折叠的偶极天线通常做大改进。

A new methodology for measuring the characteristic parameter of the circular polarization antenna using the linear polarization antenna is proposed.

提出了一种利用线极化源天线测量圆极化天线特性参数的新方法。

A broadband circular polarization antenna is then presented. Besides, we discuss how the different size of ground plane affect the antenna's performance.

其次，本文设计了一个宽频带的圆极化天线，并在此基础上讨论了不同大小的地板对圆极化天线性能的影响。

The Dual Trailing Wire Antenna on an Aircraft antenna system is used to transmit VLF /LF messages to submarines.

机载甚低频天线系统中的双拖曳天线是用于对潜通信VLF/LF的发射天线。

This particular antenna is my one and I've never had the need to go to a UHF antenna.

这特殊天线是我一个并且我从未有需要去超高频天线。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。