Cancellation gain of antenna decreases rapidly with increasing of bandwidth of interference in adaptive side lobe cancellation.
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。
It is very convenience for measurement antenna gain of antenna-receiver system. The method has high precision and it is not accept limit of frequency.
该方法对测量天线——接收机系统的天线增益尤为方便，它的测量精度高，不受频率限制。
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.
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。
The composite arrayed antenna has the characteristics of high gain, sharp directionality and strong anti disturbance ability.
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。
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.
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。
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.
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。
The effects of element failure and tolerance on antenna sidelobe level and gain in solid-state active phased array is mainly discussed in this paper.
本文主要讨论天线单元失效和容差对固态有源相控阵天线副瓣电平和增益的影响。
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.
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 research emphasizes the wideband, high gain and analysis of the mutual coupling of microstrip antenna elements.
并且，实现阵列的宽频带和高增益及阵元间的互耦分析将是研究的重点。
For the purpose of reliable transmission, the system margin is increased blindly through enhancing the transmitter power or the antenna gain in link design.
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。
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.
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。
The simple formulae of fast calculating aperture antenna directivity and gain are derived using antenna beamwidths. Applied range of these formulae are analyzed and discussed.
导出了用天线方向图的半功率波束宽度快速计算口径天线方向性系数和增益的简单表达式，分析讨论了这些公式的应用范围。
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.
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。
A method of measuring manual VSAT receiving antenna gain by using the satellite beacon and high gain standard horn antenna is described in this paper.
阐述了利用卫星信标和高增益标准喇叭天线，测量手动VSAT站天线接收增益的方法。
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.
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。
How to improve the test precision of antenna gain is the key point for antenna gain test in the outfield.
天线增益外场测试的关键是提高增益测试精度。
Then based on this design, varactor diode is adopted in the reconfigurable antenna, and continuous alteration of antenna pattern and gain is achieved.
接着以此为基础，将变容二极管用于方向图可重构天线的设计，实现了天线方向图和增益的连续可调。
The detailed measurements of the antenna, including VSWR, directivity and gain are processed. The measurement results are compared with the electromagnetic simulation results and analyzed.
通过对天线进行了驻波比、方向图、增益的详细测量并和软件仿真结果进行了比对和深入的分析。
Efficiency and gain of a parabolic antenna directly depend on the degree of accomplishing of these demands.
抛物面天线的效率和增益完全取决于实现这些要求的程度。
The effect of the mesh line-width, mesh line-spacing and the meshing style on the resonant frequency and gain of the antenna is analyzed.
分析了栅格线宽度、栅格线间距、栅格化方式等参数对天线的谐振频率、增益的影响。
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.
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。
The effects of various feeds on antenna gain in coverage area are compared so that the advantage of the cross septum feed is confirmed further.
比较了不同种类馈源对天线覆盖区增益的影响，从而进一步证明了十字膜片馈源的优点。
Due to the limitation of mobile terminal implementation in MIMO systems, Distributed Antenna System (DAS) is proposed to provide space diversity gain.
文章针对多输入多输出（MIMO）系统在移动终端实现上的限制，提出分布式天线系统（DAS）的解决方案来获得空间分集增益。
The gain and radiation properties of the antenna are investigated by using the above formulas.
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 dimension of the antenna is much smaller than that of a conventional patch antenna, but it has a higher 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。
With the enlargement of the surfaces, antenna gain also increases, at first considerably and later on less and less.
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。
Results show that different EBG structures have different effects on the patch antenna. The performance such as gain, bandwidth and return loss of the conventiona…
结果表明基于基底打孔型方形孔EBG结构的贴片天线的性能最佳，其增益、带宽和输入回波损耗都得到了较大的改善。
The two-arm hemispherical helical antenna has very wide impedance and pattern bandwidth, and its gain in the whole band is larger and wave mildly, which show that it is of great applicat…
双臂半球面螺旋天线具有较宽的阻抗带宽和方向图带宽，工作频带内增益变化不大，该天线在军事卫星通信领域具有广阔的应用前景。
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.
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.
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。
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