利用给出的公式研究了抛物环面天线的增益和旁瓣特性。
The gain and radiation properties of the antenna are investigated by using the above formulas.
目前，天线的增益及带宽变化已成为衡量rcs减缩手段优劣的主要标准。
At present, the alteration of antenna's gain and bandwidth has been the main criterion which is used to weigh the means of RCS reduction.
扩大反射面，天线的增益也会增加，开始时增加的较多，然后就越来越少了。
With the enlargement of the surfaces, antenna gain also increases, at first considerably and later on less and less.
研究表明，增加引线数目、引线间距和加长顶线长度均可以增加天线系统的静电容，减小输入电抗的模值，并使天线的增益有所改善。
It is hold that one can increase static capacitance, reduce mode of input reactance and enhance the antenna gain by increasing down lead wires, their distances or lengthening the top loading wires.
模拟结果表明，天线阵的方向性以及增益都得到了加强。
Simulated results show that the directivity and the gain of the array are improved.
VBLAST可以有效提高多发射天线系统容量，而STBC则具有较高的分集增益，通过将两种方案结合起来组成一个新的系统。
The VBLAST can be used to exploit the capacity potential provided by multiple transmit antenna systems. The STBC has higher diversity gain.
螺旋天线不仅在宽频带上具有近乎一致的电阻性输入阻抗，而且在同样的频带上按超增益端射阵的波瓣图工作。
Helical antenna has not only almost identical to the resistive input impedance in broad bandwidth, but also works by the end of super-gain front lobed map in the same frequency band.
在这篇论文中，我们提出一种可动态辐射不同增益场型的天线系统。
In this thesis, we reported a reconfigure antenna that is able to radiate different topologies of radiation pattern.
椭圆形平板天线有结构简单、频带宽、馈电相对简单等优点，可以满足小型化天线同时具有宽频带和高增益的要求。
The elliptical planar monopole antenna has the advantages of simple structure, wide band and relatively simple feed, so it can meet the demands of wide-band and high-gain at the same time.
通过对相关雷达参数的相对误差和回波强度绝对误差曲线分析得出，雷达参数天线增益优于0。
Through the correlation radar parameter relative error and the echo intensity absolute error curve analysis, when the radar parameter antenna gain surpasses 0.
采用新型同轴直排印刷振子天线结构，易于提高增益和组阵，具有良好的一致性。
The coaxial collinear printed dipole structure used to improve gain and arrays with good coherence.
卫星通信线路的设计或分析一定涉及到天线增益。
Circuitry design and analysis must involve antenna gain in satellite communications.
分析发现，只有当孔径大于一定的尺寸(约0 . 2 0个波长)时，天线增益和副瓣电平才会发生明显变化。
Analysis shows that, only when the size of the hole is larger than 0.2 wavelengths will the variation of the antenna gain and the side-lobe level become obvious.
平板裂缝天线可满足雷达系统对天线增益高、副瓣低、体积小、重量轻的要求，所以它的设计和制造已受到普遍关注。
The design and manufacture of planar slotted array antenna have been widely interested for its high gain, low sidelobe, compact size, and light weight which can meet requirements of radar system.
研究了这种新型套筒天线的输入阻抗、电压驻波比（VSWR）、增益及辐射方向图等电特性。
The electric characteristic parameters of this novel sleeve antenna are calculated, including the input impedance, voltage standing wave ratio (VSWR), horizontal gain and radiation pattern.
选用方向性好、增益高、旁瓣低的角形反射器天线作为本论文的研究重点。
The emphasis in this paper was corner reflector antenna with high-gain, narrow beam and low side-lobe.
通过实验比较，使用微波透镜后测试结果明显改善，天线增益明显提高，使近场测试的结果更接近于远场测试的结果。
The experimental results show that the measurement obtained is apparently improved, and the antenna gain greatly increased, therefore the efficiency is more close to that by the far-field measurement.
这些信号分别为模拟回波信号的生成提供了天线增益大小、时间基准、相位基准和载波频率大小等重要的参考信息。
These signals provide an important reference of the gain of antenna, the time reference, the phase reference and the frequency of carrier wave for generating stimulant echo signal.
为了使数据可靠地传输，链路设计中往往盲目加大发射机功率，提高天线增益来提高系统的余量。
For the purpose of reliable transmission, the system margin is increased blindly through enhancing the transmitter power or the antenna gain in link design.
分析了天线的电压驻波比和增益随着线栅根数以及天线高度等参数变化的特性。
The characteristics of VSWR and the gain of the antennas with different Numbers of wires and different heights are analyzed.
自行研制的复合阵列天线具有增益高、方向性图尖锐、抗干扰能力强的特点。
The composite arrayed antenna has the characteristics of high gain, sharp directionality and strong anti disturbance ability.
这一小型单元具有比喇叭天线还高的增益。
提出了一种基于平均信道增益矩阵的分布式天线无线通信系统下行功率控制算法。
A power control algorithm for the downlink of a distributed antenna wireless communication system is proposed by the use of the average channel gain matrix.
基于空间谱估计的高分辨测向技术，在天线阵各通道的增益和相位未知时，其性能往往低于传统的测向技术。
The performance of the high resolution DF technique based on the spatial spectrum estimation, will be severely suffered with sensor gain and phase uncertainties.
在自适应旁瓣相消技术中，天线的相消增益会随着信号带宽的增加而迅速下降。
Cancellation gain of antenna decreases rapidly with increasing of bandwidth of interference in adaptive side lobe cancellation.
用有限的空时码进行扩谱，并利用较少的发射天线和接收天线进行信号的发射与接收，从而在TD _ SCDMA移动接收端获得最大的扩谱增益。
Base_station USES finite number of space_time codes to spread, and small number of antennas to transmit and receive signal, thus TD_SCDMA mobile terminals can obtain maximal spreading gain.
该天线结构的尺寸比一般贴片天线要小很多，但却具有更高的增益。
The dimension of the antenna is much smaller than that of a conventional patch antenna, but it has a higher gain.
针对超高频机载合成孔径雷达天线小型化、高增益和宽频带的问题，分析了短背射天线缩小背腔的增益损失。
To meet the requirements of miniaturization, high gain and wideband of UHF antenna for aircraft SAR, the gain loss produced by narrowing back cavity of short back radiation antenna is analyzed.
应用概率统计原理导出了天线副瓣最高电平和天线增益损失的估计公式。
With the help of statistic principle, the estimation formulas of the peak sidelobe level and gain loss are derived.
永远不要在图传的生效界线停顿，假使你看到噪点请立刻华美转身，回淘宝去换增益更高的天线。
Do not fly at the limits of video. if you see noise in your picture, turn around and buy a higher-gain antenna before going out further.
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