本文导出了地面站常用的改进型波束波导馈电高效率双镜天线的辐射特性的计算式。
In this paper, the equations for calculation of the radiation performances on high efficiency double reflector antenna fed by beam waveguide are derived.
考虑到单线圈天线的性能降低，设计了一个新的具有高效率低启动电压的电荷泵整流电路。
Based on this exasperate antenna performance, a new rectifier with high power conversion efficiency and low turn-on voltage is presented.
将电场积分方程和矩量法相结合，可得到一种处理任意形状天线的高效率数学方法。
By combining the electric-field integral equation with the moment method, an efficient numerical procedure for treating the problems of wire antenna with arbitrary shape can be developed.
本文采用法向模螺旋天线代替以前采用的短偶极子天线以提高效率。
This paper chooses a normal mode helical antenna to replace the short dipole antenna to improve efficiency.
经过外场测试，天线在S/X双频段具有高增益、低噪声温度的优良性能，天馈系统在S波段能进行精密跟踪及S/X双频高效率接收。
Antenna have high gain, low noise temperature characteristic under test in experimentation, and it can precision tracking at S-band, high efficiency receive at S/X-band.
该天线为小型电结构，其具有宽的带宽和好的增益特性，具有高效率且不易于失调。
The antenna is electrically small, has wide bandwidth and good gain characteristics, is efficient and not easily detuned.
一种在某些特定的方向上可以更高效率地发射和接收无线电频率(RF)信号的天线。
An ANTENNA that radiates or receives RADIO FREQUENCY (RF) signals more efficiently in some directions than in others.
这种天线的优点是，一、可以较高效率地接收两种极化的数字电视信号；
The advantages of the antenna are: firstly, receiving two kinds of polarized digital video signals with high efficiency;
这种天线的优点是，一、可以较高效率地接收两种极化的数字电视信号；
The advantages of the antenna are: firstly, receiving two kinds of polarized digital video signals with high efficiency;
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