• How to improve the test precision of antenna gain is the key point for antenna gain test in the outfield.

    天线增益外场测试关键提高增益测试精度

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  • The beam forming technique is used in the UHF radio for improving antenna gain and system anti-interception.

    提出波束成形技术应用超短波电台提高天线增益系统收能力。

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  • With the enlargement of the surfaces, antenna gain also increases, at first considerably and later on less and less.

    扩大反射面天线增益增加开始时增加的较多然后越来越少了。

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  • The main antenna (100) and diversity antenna (105) are physically separated and oriented such that they have different antenna gain patterns.

    天线(100)分集天线(105)是在物理上分开的,并且其取向使得它们具有不同的天线增益图形。

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  • The simulation indicated that the polarization axial ratio and antenna gain pattern of this antenna are good for "BD-1" signal and GPS signal.

    设计组合天线具有良好电磁兼容性,仿真结果表明天线对于接收“北斗GPS信号具有较好的圆极化增益方向图。

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  • 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.

    比较不同种类天线覆盖增益影响从而进一步证明了十字膜片馈源的优点

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  • 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.

    阐述利用卫星信标高增益标准喇叭天线测量手动VSAT站天线接收增益方法

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  • 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.

    方法测量天线——接收机系统天线增益尤为方便测量精度频率限制

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  • The solutions of the antenna gain and electromagnetic interference margin in the regions of low frequency, resonance and high frequency are discussed.

    介绍了低频谐振区及光学区机载天线辐射场、电磁干扰余量求解法。

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  • Through the adjustment and optimization of the antenna, higher antenna gain is achieved, to meet the requirement of high-gain omni directional antenna.

    本文通过天线调整优化实现了天线增益提高满足高增益要求

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  • For the purpose of reliable transmission, the system margin is increased blindly through enhancing the transmitter power or the antenna gain in link design.

    为了使数据可靠传输链路设计往往盲目加大发射机功率提高天线增益来提高系统余量

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  • Through the correlation radar parameter relative error and the echo intensity absolute error curve analysis, when the radar parameter antenna gain surpasses 0.

    通过相关雷达参数相对误差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

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  • 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.

    分析发现只有孔径大于一定尺寸(约0 . 2 0个波长)时,天线增益电平才会发生明显变化

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  • 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、引线间距加长线长度均可以增加天线系统静电减小输入电抗值,使天线的增益有所改善。

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  • 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.

    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,使场测试结果接近于场测试的结果。

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  • The VBLAST can be used to exploit the capacity potential provided by multiple transmit antenna systems. The STBC has higher diversity gain.

    VBLAST可以有效提高发射天线系统容量,而STBC具有较高分集增益,通过将两种方案结合起来组成一个新的系统。

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  • 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.

    这些信号分别模拟回波信号生成提供了天线增益大小、时间基准相位基准载波频率大小等重要参考信息。

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  • The composite arrayed antenna has the characteristics of high gain, sharp directionality and strong anti disturbance ability.

    自行研制复合阵列天线具有增益、方向性图尖锐抗干扰能力特点

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  • Cancellation gain of antenna decreases rapidly with increasing of bandwidth of interference in adaptive side lobe cancellation.

    自适应技术中,天线相消增益随着信号带宽增加迅速下降

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  • 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.

    螺旋天线不仅宽频带上具有近乎一致电阻性输入阻抗而且同样频带超增益波瓣工作

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  • 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.

    提出一种基于平均信道增益矩阵分布式天线无线通信系统下行功率控制算法

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  • 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.

    椭圆形平板天线结构简单频带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高增益要求

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  • 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输入阻抗电压VSWR)、增益辐射方向图等特性

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  • 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容差固态有源相控天线副瓣电平和增益影响

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  • The dimension of the antenna is much smaller than that of a conventional patch antenna, but it has a higher gain.

    天线结构尺寸一般贴片天线要小很多具有更高的增益。

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  • 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.

    导出了天线方向图半功率波束宽度快速计算口径天线方向性系数增益简单表达式分析讨论了这些公式应用范围

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  • The research emphasizes the wideband, high gain and analysis of the mutual coupling of microstrip antenna elements.

    并且,实现阵列宽频带和高增益元间的分析将是研究重点

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  • 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宽频带问题,分析了天线缩小增益损失

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  • The planar slot array antenna can satisfy a radar screen's request for antenna high gain, low side lobe, small volume, and light weight etc. So it gets extensively applied in the airborne radar.

    平板裂缝天线满足雷达系统天线增益体积小、重量要求所以机载雷达中得到广泛应用

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  • The planar slot array antenna can satisfy a radar screen's request for antenna high gain, low side lobe, small volume, and light weight etc. So it gets extensively applied in the airborne radar.

    平板裂缝天线满足雷达系统天线增益体积小、重量要求所以机载雷达中得到广泛应用

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