八木天线

Company's main products are indoor coverage systems used in aluminum chamber, the board antenna, rubber antenna, eight antennas, and other wood used in plastic housings.

公司主要产品有室内覆盖系统使用的铝腔体，板型天线、橡皮天线、八木天线等所使用的塑料外罩。

In Chapter 3, the frequency and pattern characteristics of three two-element microstrip Yagi antennas are analyzed.

第三章分析了二元微带八木天线的频率特性和方向图特性，并引入槽单元，改变了天线的特性。

This paper analyzes the Yagi antenna structure and principle and the use of HFSS software Yagi antenna performance analysis and structural design, made to further improve and optimize the performance of the methods.

本文主要分析了八木天线的结构及原理，并利用HFSS 软件对八木天线的性能结构进行分析和设计，提出了进一步改进和优化性能指标的方法。

A microstrip Yagi structure of RFID tag antenna on papery substrate is proposed.

提出了一种基于微带八木天线结构的纸基RFID标签天线设计。

At 915MHz band, Yagi antenna, helical antenna, microstrip antenna array are designed, and the results of simulation and measurement are presented.

设计了工作在915MHz频段八木天线、螺旋天线、微带阵天线，并给出了仿真与测试结果。

My antenna is a five-element Yagi for 15, 20 and 40 meters bands, a three-elementYagi for ten meters band which is homebrew.

我的天线在15m、20m和40m波段是一副五单元八木天线，在10m波段是一副自制的三单元八木天

My antenna is a five-element Yagi for 15, 20 and 40 meters bands, a three-element Yagi for ten meters band which is homebrew.

我的天线在15m、20m和40m波段是一副五单元八木天线，在10m波段是一副自制的三单元八

By changing the size and location of the slot, the frequency and pattern characteristics of the two-element Yagi patch antenna are changed.

第四章提出了几种将槽单元引入微带八木天线实现方向图重构的天线方案。

Based on the analysis, three single-port 1-dimension 5-element pattern reconfigurable Yagi patch antennas are designed.

在单端口馈电方向图可重构微带八木天线的基础上，还设计了一个双端口馈电的方向图可重构二维微带八木天线阵。

Results of simulation and test show that RFID tag antennas with both meander-line and Yagi structure are easy to gain the impedance of conjugate matched to the tag IC, which is small in resistance and large in reactance.

仿真和实测结果表明，共同采用弯折线和八木天线结构可以有效的获得匹配阻抗实部较小，虚部较大的RFID标签天线。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。