查询词典 in-line antenna

This meant that radar transmitter-converter-antenna assemblies could be carried in nacelles under aircraft wings.

这意味着雷达的发射-交换天线可以安装在机翼下的吊舱内。

The feasibility of a varactor-based adaptive matching network for antenna mismatch correction is investigated. A LC-resonator-based Π-section network is optimized for its performance, in terms of operation power gain, Smith Chart coverage, and effective capacitance tuning range of the varactors.

对适用于天线失配修正的基于可变电容构建的自适应匹配网络进行了可行性分析，重点对基于LC谐振腔所设计的Π型匹配网络从功率增益、史密斯圆图覆盖率和可变电容有效调谐范围几个方面进行了性能优化。

His is the only house in the neighborhood with a television antenna on the roof.

他家是附近惟一一家屋顶上支着电视接收天线的人家。

The optimum channel capacity for using diversity technique in the Nakagami fading or Weibull fading channels has been derived based on the optimum capacity of multi-antenna Gaussian channel model.

在多天线高斯信道最佳容量的基础上，推导出在Nakagami和Weibull衰落下，采用分集技术的最佳信道容量的数学表达式。

Reflecting objects or targets intercept and reradiate a portion of the radar signal;asmall amount returns in the direction of the radar and is collected by the antenna.

雷达信号(其形式通常为重复的短脉冲序列)由发射机产生，通过天线发射，反射物拦截并反射部分雷达信号，其中一小部分向雷达方向反射回来，被天线接收。

The design of a large aperture slot antenna for harbor radars is studied in this paper.

本文仅就港口雷达大口径波导裂缝天线的设计进行探讨。

An antenna device and a portable wireless communication apparatus are disclosed to securely lower a local average SAR in correspondence to at least two or more kinds of radio communication systems using different radio communication frequencies even when any radio communication frequency is used.

公开了一种天线装置和便携式无线通信装置，即使在使用任何无线通信频率的时候，也能安全降低对应于至少两种或多种无线通信系统的局部平均SAR。

Then, the required feature of transmitting and receiving antenna used in base station and mobile terminal of the MIMO system are analyzed.

本文在介绍了MIMO系统天线基本理论的基础上，详细阐述了MIMO系统天线单元的设计方法，并通过实测和仿真实验对所设计的天线单元进行了验证。

The other parts of this thesis are measurements of the transmitting power of the transmitter and voltage standing wave ratio of the antenna in the 5.8GHz communication system.

论文的另一部分工作是5.8GHz通信系统中发射机功率和天线驻波系数的测量。

The essential structural mechanism and construction properties of Hoop Truss Deployable Satellite Antenna are investigated in this thesis.

摘要本文针对大型环形桁架可展开卫星天线这一具体天线结构，利用参数化造型技术获得天线展开臂和天线环形桁架的三维参数化实体模型，并对天线环形桁架进行了静力学特性分析。

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。