宽带匹配的英文

• wideband matching

• "宽带"英文翻译    broadband; wide band
• "匹配"英文翻译    mate; marry
• "宽频带匹配" 英文翻译 :    broad-band matching
• "宽频带匹配段" 英文翻译 :    broadband stub
• "宽频带匹配电路" 英文翻译 :    broad band matching circuit
• "宽带" 英文翻译 :    broadband; wide band (wb)
• "匹配" 英文翻译 :    1.[书面语] (婚姻配合) mate; marry 何人堪与她匹配? who will marry her? 草率匹配多后悔。 marry in haste and repent at leisure.2.[电学] matching 亮度匹配 brightness matching; 一致匹配 consistent match; 最佳匹配 best match; 阻抗匹配 impedance matching; 匹配变压器 (impedance) matching transformer; 匹配程序 matcher; 匹配系数 matching factor; 匹配阻抗 matched impedance; matching impedance
• "超宽带" 英文翻译 :    ultra wideband; ultra-broadband; uwb ultrawideband
• "宽带比" 英文翻译 :    wide-band ratio
• "宽带波" 英文翻译 :    broadband waveplate
• "宽带材" 英文翻译 :    wide strip◇宽带材轧机 wide-strip mill
• "宽带档" 英文翻译 :    wideband frequency modulation
• "宽带钢" 英文翻译 :    wide flat steel; wide strip steel
• "宽带管" 英文翻译 :    broad-band tube
• "宽带化" 英文翻译 :    bip-isdn broad band， intelligent and personalized isdn; bip-isdn broadband intelligent and personalized integrated services digital network; bip-isdn broadband, intelligent and personalized integrated services digital network; bip-isdn broadband, intelligent and personalized isd
• "宽带局" 英文翻译 :    broadband lan
• "宽带宽" 英文翻译 :    wide bandwidth
• "宽带猫" 英文翻译 :    adsl moden
• "宽带热" 英文翻译 :    broadband fever
• "宽带网" 英文翻译 :    bbn broadband network; broadband networks; wbn wide-band network
• "宽带子" 英文翻译 :    cummerbund
• "甚宽带" 英文翻译 :    ultra-broadband
• "q匹配" 英文翻译 :    q matching; q-matching
• "t形匹配" 英文翻译 :    t matching; t-matching
• "板边，匹配" 英文翻译 :    plate edges, matching

• A 1 / 10 - scale model quasi - fractal rcl - loaded monopole antenna was fabricated and measured , which has a bandwidth ratio of about 10 : 1 , with vswr less than 3 . 0 , calculated system gain greater than - 9 . 4db and the efficiency above 14 %
  加入宽带匹配网络后,对其10 : 1的缩比模型天线进行了测试,在全频率段内驻波系数小于3 ,理论增益大于- 9 . 4db ,效率大于14 % 。
• Then , lump loading is used to enhance the valid height of the antennas , as a result the input impedance of the monopole antenna undergoes gently variation with frequency , and consequently it is easy to match by wideband matching network
  加载后,输入阻抗变化得到减缓,这是能够使用宽带匹配网络进行宽带匹配的前提,经过宽带匹配达到了天线小型化和宽带化的设计目的。
• Broadband matching is very difficult , but we can make it easier with negative feedback and balanced amplifier . so at first we should choose a project , then according to the requirement of the low noise amplifier to choose the transistor , bias and matching
  宽带匹配网络的设计是一个难点,可以采用负反馈、平衡电路等形式降低宽带匹配的难度,所以宽带电路的设计首先是方案设计。
• The main contributions are as follows : ( 1 ) de ( differential evolution ) algorithm is proposed to invert the ocean acoustic parameters in shallow water in order to get faster and more accurate results than ga ( genetic algorithm ) and sa ( simulated annealing algorithm ) . also a posteriori probability analysis method is applied to evaluate the uncertainty of inversion results . ( 2 ) maximum likelihood objective functions for broadband mfi are derived according to different conditions
  ( 2 )根据不同的前提条件，采用似然比的方法推导了宽带匹配场反演的最大似然目标函数；深入地研究了宽带匹配场处理中的相干与非相干问题；在分析参数反演的敏感性之后，提出了浅海环境参数宽带匹配场反演的多步优化策略，并与全参数反演方法进行了性能上的仿真比较。
• The principle of power amplifier is introduced at first in this paper , especially its nonlinearity characteristic under the condition of large signal . subsequently linearization technology such as power - retreat , negative feedback , pre - distortion and feed - forward are discussed . and then broadband matching technology is introduced . at last , the scheme of subject , the functional realization of each module , some questions which must be pay much attention in the system design , and the ultimate testing result of this subject is represented and analyzed in detail
  本文首先介绍了线性功率放大器工作原理，尤其是在大信号条件下，它的非线性特征，这是设计线性功放必备的基础；接着介绍了当今一些前沿的功放线性化方法，例如预失真和前馈技术；然后详细讨论了宽带匹配技术，特别是传输线变压器的原理和应用，这是因为传输线变压器在本课题中扮演了重要的角色；最后具体叙述了本课题采用的方案、各个模块的功能的实现、实际设计应注意的问题。
• The spot responder system which is the necessary part of ctcs is analyzed in the dissertation and three key technologies of the channel in the responder system are researched . firstly , a new kind of rectangular plate magnetic inductive loop antenna is designed to transmit the power frequency . researching the near field inter - inductive characters , the relationship among the inductive efficiency , the perimeter and the conductor width of the antenna is found out
  本文在对ctcs中的点式应答器系统原理及组成进行分析和消化的基础上,对系统中信道的几个关键技术进行了详尽的研究,主要分为三个方面: 1 ,提出并研制了新型的片式环形磁感应天线,并对传输能量载波的天线的近场互感特性进行了分析,得到互感效率随天线的周长大小以及导带宽度的变化规律,并通过计算机仿真和试验对天线的近场波瓣图进行了研究;通过分析宽带匹配技术中的实频法理论,设计了信号载波天线的宽带匹配网络。
• This subject aim at designing a linear power amplifer whose output power is 40w for 225 - 450mhz band . but it seems not easy to finish the task because of this power amplifier own unique requirements including high output power , broad working frequency band , high linearity , and flat gain . due to the complexity involved , theoretically several soltuions are derived in the final scheme such as broadband matching technology , power - retreat , power synthesize , automatic power control and negative feedback . in addition , the design will be optimized by eda software and the final test result indicates that our design is successful
  本课题的目标是研制一个输出功率为40w的225 450mhz的线性功率放大器。由于该功放要求输出功率大，工作频带宽，带内增益波动小，线性度高，所以其终合设计难度大。鉴于这个原因，在理论设计上笔者采用了宽带匹配、功率合成、功率回退、负反馈、自动功率控制等技术；在实践中精心设计电路，并且配合eda软件仿真，最终达到所要求的指标。

• 宽带匹配的日语：こうたいいきせいごう