There are some other GPS antenna technologies (chip, helical), but they are not as common, a bit more expensive, and require significantly more amplification and filtering.
还有一些其他的GPS天线技术(芯片，螺旋)，但它们并不常见，有点贵，需要大大增加放大和过滤。
This paper gives a detailed discussion about how to deal with some common structural problems in far-field test of ground radar antenna. The author hopes that it will be helpful for the testing work.
本文就如何处理地面雷达天线远场测试中常见的若干结构问题阐述拙见，祈对测试工作和有关人员有所裨益。
This paper introduces the working principle of the two-tube antenna amplifier, expounds the maintaining methods for the antenna amplifier, and points out some common faults of the antenna amplifier.
在介绍两管天线放大器工作原理的基础上，对天线放大器的检修方法作了阐述，并对天线放大器常见的故障进行了概括。
Next the electromagnetic field on aperture was found, and then proceeded to sum up five common features of aperture field of parabolic antenna.
接着求出口径上的电磁场，进而归纳出抛物面天线口径场的四大共同特征。
This paper briefs the structural design of common slotted waveguide array antenna and presents several key factors which should be considered during structural design of this antenna.
简述了常规波导裂缝阵列天线的结构设计方法，同时以某些天线为例强调了结构设计时主要考虑的几个因素。
A device that permits the simultaneous use of a transmitter and a receiver in connection with a common element such as an antenna system.
一种设备，允许同时使用连接在一个公共器件(如天线系统)上的接收器和发送器。
Please keep away from any power lines and use common sense when setting up this antenna. Remember that antennas can attract lightning strikes.
架天线请避开电力线，并要用到一点常识，记住天线可以引雷。
This paper reviews its concept and applications first and then introduces some common fractal antenna and array designs.
本文在综述了这一新颖技术的基本特性和应用后，简要介绍了几种常用的分形天线和阵列设计。
It is promised that the lobe pattern and impedance of a antenna are kept common in a wider frequency field (as bandwidth is 10 or more).
通常希望一个天线的波瓣图和阻抗能在一个较宽的频率范围内(例如频带宽度为10或更高)保持不变。
It is promised that the lobe pattern and impedance of a antenna are kept common in a wider frequency field (as bandwidth is 10 or more).
通常希望一个天线的波瓣图和阻抗能在一个较宽的频率范围内(例如频带宽度为10或更高)保持不变。
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