根据现有已推出HSDPA终端产品的公司对适用于HSDPA数据卡工作频率的一般要求，本论文研究了适用于HSDPA数据卡的多频（五频）天线。
The system should have the performance of multi frequency and wide bandwidth, in order to meet the number of user growing, so the multi frequency of HSDPA terminal products will be the hotspot.
从十二月到四月气旋灾害频发，上周末一个致命性的五级风暴“帕姆”登陆该岛屿。
They can strike anywhere from December to April, a devastating category five storm named Cyclone Pam came ashore over the weekend.
轧机第五倍频程颤振表现为高频微幅的自激稳态振动。
Fifth-octave mode chatter is most likely to occur in the form of self-excited steady vibration.
该系统利用一个传感器解决了横向振频、横向振幅、纵向振频、纵向振幅和动挠度五个参数的检测问题。
The system use one sensor solved the examination problem of horizontal amplitude, horizontal frequency, vertical amplitude, vertical frequency and dynamic flexibility.
我们用该方法计算了硅压阻式加速度传感器五阶梯硅梁固频和振型。
We calculated the natural frequencies and mode of vibration for a five stepped Si-beam of Si-piezoresistive accelerometer.
建立了包括电流控制电路、功率驱动电路以及五相混合式步进电动机在内的恒频斩波恒总流驱动系统的完整的数学模型；
Mathematical model of the system, included the current control circuit, power driving circuit and five-phase hybrid stepping motor is established.
第三章至第五章分别介绍了毫米波锁相源、二倍频本振源和低噪声放大器三个系统关键的单元电路的设计过程和测试结果。
From chapter three to chapter five, the three key components of the system: millimeter-wave phase locked sources, multiple frequency local source, low noise amplifier are designed and tested.
介绍了一种五相混合式步进电动机恒频斩波恒总流驱动新技术，及新五边形绕组联接方式，并给出了样机的实验结果。
This paper presents a new driving technique of 5-phase hybrid step motors and a new pentagon connecting pattern, the experimental results are given.
第五章主要说明了如何利用软件来进行点频和扫频状态下的参数测量，并对测量结果进行了讨论。
Chapter 5 introduces how to use software to make measurements in state of dot frequency and swept frequency, in addition measurement results are discussed.
第五章主要说明了如何利用软件来进行点频和扫频状态下的参数测量，并对测量结果进行了讨论。
Chapter 5 introduces how to use software to make measurements in state of dot frequency and swept frequency, in addition measurement results are discussed.
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