首先对目前广泛应用在基站中的天线和天线开关进行了介绍，并给出天线开关的详细设计过程。
Firstly, the Antenna and Antenna Switch which are presently used in Cell Station are introduced, and the design procedure of the RF Switch is given in detail.
天线开关，在选定的路线上的rf - signal前端的一部分是一个自然的对象为电气装配。
The antenna switch which routes the rf-signal to the selected part of the front end is a natural object for electrical assembly.
收发分离天线体制下，天线开关的设计与实现，并提出了收发共用天线体制下高频天线开关的设计方案。
Has developed the antenna switch, which is used in T-R separate antenna system, also put forward the scheme of designing the switch for T-R community antenna system.
在电路结构设计部分，主要讨论了采用集总参数传输零点滤波器实现天线双工器和采用PIN管实现天线开关的设计方法。
The circuit design part mainly introduces the duplexer design with lumped apices filter, and the antenna switch design with PIN diode.
为了要发现目标和确定其位置，任何雷达站基本上都必须包括发射机、接收机、天线、天线转换开关、显示器和定时装置。
Tofind a target and determine its position, any radar station has to basically consist of a transmitter, a receiver, an antenna, an antenna duplexer, a display and a timer.
瓦蜂窝天线转换开关。
向下旋动skim及其安装托架，然后向转向柱侧面旋转，将skim天线环滑动到点火开关锁柱插槽附近。
Rotate the SKIM and its mounting bracket downwards and then to the side away from the steering column to slide the SKIM antenna ring from around the ignition switch lock cylinder housing.
提出一种基于MEMS开关的可重构矩形缝隙环天线设计。
A design of reconfigurable rectangular slot ring antennas with MEMS switches is proposed in this paper.
另外地，开关可被用来“接入”和“断开”电容性元件，以便调节天线的带宽。
Additionally, switches may be used to 'switch in' and 'switch out' capacitive elements to adjust the bandwidth of the antenna.
讨论了用于开关电源辐射建模的基本偶极子天线模型，给出了各模型电磁场的解析解。
Several dipole antenna models were proposed to modeling the near electromagnetic field of high-frequency switched mode power supplies (SMPS).
至少一个天线连接至有转换开关的调节电路，通过调节电路能够根据需要使天线的工作频带移位。
At least one antenna is connected to an adjusting circuit with a switch, by which the antenna's operating band can be displaced in a desired way.
通过改进原有馈电电路并调整开关矩阵与阵列天线的连接顺序，现提出了一套新型的多辐射中心仿真系统的设计方案。
This paper presents a new de- sign for RFSS of multi - radiation centers, which bases on modifying feed circuits and the join order in traditional sys- tem.
首先以PIFA天线为基本结构，设计了能通过控制二极管开关状态来改变方向图的可重构天线，并实现了天线带宽的拓展。
Based on the PIFA structure, a pattern reconfigurable antenna can be controlled by RF diode switch is designed, with bandwidth expanded at the same time.
该开发套件包括主板、使用手册、介面扁平电缆、跳线开关、安装配件、天线及天线电缆。
The developers kit includes instructions, interface ribbon cable, jumpers, mounting hardware, antenna and antenna cable.
例如，该开关可以改变天线的总长，从而改变天线的频率范围。
For example, the switches may change the overall length of the antenna such that the frequency range of the antenna is changed.
通过控制微带漏波天线中部馈电端口移相器，成功实现了工作频率固定下微带漏波天线主波束扫描，并使用电子开关实现微带漏波天线主波束双向扫描。
Through a new feeding construction with phase-shifter, the main lobe of the pattern of the microstrip leaky-wave antenna can scan at a fixed frequency.
本论文综合研究了分形技术、分形天线、RFMEMS开关和集成MEMS开关的可重构分形天线等问题。
The fractal theory, fractal antenna, the RF MEMS switch and the Reconfigurable fractal antenna with integrated MEMS switches are investigated in this paper.
雷达天线往往收发共用，通过收发开关连接高功率发射单元和低功率射频单元要考虑收发开关的隔离度问题。
Isolation of the T/R switch must be considered when the high power transmitter is connected to the low power radio frequency unit by T/R switch as the radar antennas are reciprocal.
雷达天线往往收发共用，通过收发开关连接高功率发射单元和低功率射频单元要考虑收发开关的隔离度问题。
Isolation of the T/R switch must be considered when the high power transmitter is connected to the low power radio frequency unit by T/R switch as the radar antennas are reciprocal.
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