毫米波源 的英文怎麼說

中文拼音 [háomǐbōyuán]
毫米波源 英文
millimeter wave source
  • 毫 : Ⅰ名1 （細長而尖的毛） fine long hair 2 （毛筆） writing brush 3 （姓氏） a surname Ⅱ副詞（一點兒 ...
  • 米 : Ⅰ名詞1. （稻米） rice 2. （泛指去殼或皮的可吃的種子） shelled or husked seed 3. （姓氏） a surname Ⅱ量詞（公制長度的主單位） metre
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 源 : 名詞1. （水流起頭的地方） source （of a river）; fountainhead 2. （來源） source; cause 3. （姓氏） a surname
  • 毫米 : millimetre （mm. ）; [力學] millimeter of mercury （mmhg）毫米汞柱 milli hg
  1. The characteristics of various solid - state power - combining techniques and the principles of the waveguide - based power combining structure are compared and analyzed in detail. the power combiner is based on a double antipodal finline - to - microstrip transition structure. the proposed 2 2 combining structure is optimized by using 3 - d fields simulation tools cst

    主要內容為: 1 .研究和對比了各種固態功率合成技術的特點，詳細地分析了波導基空間功率合成器的工作原理，提出了一種基於雙對極鰭線-微帶過渡的2 2路毫米波功率合成器結構，藉助三維場模擬軟體cst對該無源網路進行了優化設計。
  2. Bing high power resources of millimeter - wave radiation, based on electron cyclotron maser, gyrotron has been pay much respect in the world for vast applications in many areas such as plasama calefaction, linear accelerators, millimeter wave radar, communications, electronic countermeasure and so forth. prof. liu shenggang began the research on electron cyclotron maser, and later, the group leaded by prof. li hongfu has done much research work on gyrotron also, and later, they have began the research on a kind of gyrotron amplifier - - - - - - gyroklystron

    迴旋脈塞器件? ?迴旋管作為大功率毫米波源，在等離子體加熱、線性加速器、雷達、通信及電子對抗等領域有著廣泛的應用前景，因此受到了國際上的廣泛重視，特別是近三十年來，迴旋管得到了快速的發展，並成為了研究的熱門方向。
  3. Mixers are the key components of many microwave and millimeter - wave systems. the super - heterodyne receiver is always applied in modern communication system, mixer becomes the key component as is at the first part of system. but it is more and more difficult to get the choiceness lo source of the same band with the system is working at high frequency especially in the millimeter - wave. sub - harmonic mixer is a good solution to this problem now. in this circuit we need just half 、 quarter 、 even 1 / 8 of the rf signal frequency. in this paper the design and fabricate of sub - harmonic hmic mixers ( 2, 4 ) at w - band are introduced

    混頻器是微波通信、射電天文學、雷達、等離子物理、遙控、遙感、電子對抗，以及許多微波測量系統中至關重要的部件。在現代通信系統中，毫米波頻段通常採用超外差接收機，混頻器作為第一級就成為關鍵部件。由於在毫米波頻段，同頻段高性能的本振源成本高，技術難度大，採用分諧波混頻技術是解決此問題的有效途徑，只需射頻頻率1 / 2 、 1 / 4甚至1 / 8的本振頻率即可實現混頻。
  4. The experimental result expresses that the frequency doubler - power amplifier sets of ka - band can supply good local oscillation source for " millimeter - wave front - end of " lmds " ". the model has the advantages of low cost, small size and high reliability

    實驗結果表明，倍頻放大組件能夠為lmds毫米波前端提供很好的本振源，並且具有成本低、體積小、可靠性高等優點。
  5. Chapter 5 is about the design of millimeter wave solid circuit included frequency multiplier, low noise amplifier, medium power amplifier, mixer, if amplifier lastly, based on the work above, a millimeter wave t / r module is developed and the analysis of the result is also introduced

    第五章毫米波固態電路，詳細分析了毫米波倍頻器、低噪聲放大器、毫米波放大器、混頻器的理論，製作了毫米波混頻器、毫米波放大器、中頻放大器、倍頻器等有源電路。最後，在上述基礎上製作了毫米波t / r組件。
  6. Millimeter - wave power source plays a key role in millimeter - wave systems

    但是，目前毫米波功率資源仍是制約毫米波技術在應用系統中的關鍵性瓶頸問題。
  7. The combination of fdtd method with physical optics is also used to analyze paraboloidal reflector antenna in millimeter band. using fdtd method, we obtains precise near fields of the feed because the computing areas include all the feed structure. the current on the paraboloidal reflector can be calculated by using physical optics, and then the far field of reflector can be calculated

    在毫米波拋物面天線的分析計算中，把fdtd與物理光學法結合起來， fdtd用於具有精細結構的饋源及饋電波導一體計算，得到饋源的幅度和相位方向圖，以此為依據調整饋源結構，使饋源的幅度和相位方向圖為最佳狀態。
  8. The major job is manufactured a transmitter, which has three upmixer channels. its function is to up convert the signals from c - band to ka - band. the input local oscillator is provided by a low frequency crystal oscillator which has a good performance of phase noise, through 512 times multiply to ka band. this sysetem is used in the laboratory as transmitter source of the fuze, for the multidimensional objects in practise, which lead to the complexity of the reflect signal, so the amplitude, frequency and the phase of the transmit signals both have a key role in dealing with the reflection signals. therefore, this system requires for both the coherence of the single channel ’ s amplitude, phase and multi channels

    本文的主要工作是應用戶要求製作一具有三發射通道的上變頻系統，可以將c波段的微波信號上變頻到ka波段的毫米波信號。系統的本振輸入基頻由一相位噪聲非常好的低頻率晶振提供，經過512次的倍頻放大至ka波段。本系統作為實驗室中引信的發射源，由於目標反射信號具有時變的多維性，反射信號變得極為復雜，在信號處理時，不僅信號幅值、頻率有決定意義而且相位關系也很有決定意義。
  9. Chapter 2 introduces the principle theory of lna, harmonic mixer, multiplier, spdt, vco and the basic design flows of the ads examples ( x - band ), the power combine technology, the millimeter - wave power amplifier mmics ’ trends nowadays

    第三章介紹了毫米波前端中無源電路的設計，包括毫米波窄帶濾波器的設計、微波和中頻濾波器的設計、波導到微帶的過渡、微波信號的層間過渡。
  10. This problem could be resolved by using sub - harmonic mixer ( shm ). instead of using mmw lo, shm using microwave signal with frequency equals 1 / 2 or 1 / 4 of mmw lo frequency, thus the technical difficulty and cost of mmw system is reduced remarkably

    採用亞諧波混頻器（ sub - harmonicmixer ）可將本振頻率降為基波頻率的1 / 2或1 / 4 ，從而克服了直接採用毫米波本振源帶來的困難，降低了射頻接收機的技術難度和系統成本。
  11. This thesis describes the properties of millimeter wave, and development of the millimeter wave sources nowadays, and introduces the solid - state devices impatt diodes, and analyses the technology of the injection locked. then this thesis gives out how to design the pa module in detail. and practical circuit is given out with the test result and analyses

    本文首先綜述了毫米波特點，毫米波源的發展現狀，介紹了w波段impatt器件的基本工作原理，分析毫米波波導電路中的注入鎖定技術，給出實現連續波或脈沖功率放大的w波段信號源的功放模塊的技術方案、測試結果和綜合分析。
  12. In the passive circuit part, according to the theories of microstrip line and coupled microstripwe, the characteristic of microstrip and coupled microstrip was analyzed, the x band filter and dc block circuit of amplifier have been designed by hp - ads software

    為毫米波設備提供本振源。在無源電路部分，我們首先對微帶線、耦合線等基本理論作了簡單的介紹。
  13. Gyroklystron amplifier is a novel high - power millimeter - wave coherent radiation source. as a result of high - power capability and high - efficiency and moderate bandwidth advantages, gyroklystron amplifiers have received a great deal of attention in recent years for a variety of applications including high - power radars, electronic counter systems and the next linear collider etc. specifically in twenty years later, there was much developments on gyrotron

    迴旋速調管放大器是一種能夠在毫米波段獲得高功率、高效率及一定帶寬的新型毫米波相干輻射源，因其在高功率毫米波雷達、電子對抗、定向能武器、材料處理和加速器等領域的重要應用前景，在國際上受到了廣泛的重視。
  14. With the phase - noise model of the phase loked loop ( pll ) and the analysis of spur characteristic of fractional - n frequency synthesizer using - ? modulating technology, the scheme of pll with mixer + quadrupler is confirmed as a result

    文中，通過建立鎖相環路的相位噪聲模型，並分析了使用- ?調制技術的分數頻率綜合器的雜散性能，以此二者為理論依據完成了毫米波頻率源合成器的基本方案? ?鎖相混頻環+倍頻器方案。
  15. According to the proposal, two millimeter - wave phase locked sources are locked on a crystal oscillator. the one of the phase locked source is used for steady carrier wave in transmitter, the other is used for local oscillator. through the proposal, coherent transceiver front - end is achieved

    本方案採用同一晶振源為收發兩個毫米波鎖相源作參考頻率，其中的一個鎖相源用於產生高穩定的發射載波頻率，另一個用於產生高穩定的本振信號，從而實現收發的相參性。
  16. We have researched the integration oscillator working at millimeter wave band

    本文開展了毫米波集成振蕩源的研究工作。
  17. Millimeter - wave oscillators are hearts of millimeter - wave systems, and key components of millimeter - wave systems for radars, communications, electronic - wars and so on

    毫米波振蕩源是毫米波系統的核心，是雷達、通信、電子對抗等毫米波系統的關鍵部件之一。
  18. Being high power resources of millimeter - wave radiation, gyrotron has broken through and resolved the difficulties which the traditional microwave devices faced. it brings a lot of hope and promotion to application and deploitation of millimeter and submillimeter - wave

    迴旋管作為大功率毫米波源，在機理上突破和解決了傳統微波器件所遇到的困難，對毫米、亞毫米波波段的開拓和利用帶來了新的希望和巨大的推動作用。
  19. Being high power resources of millimeter - wave radiation, based on electron cyclotron maser, gyrotron has been pay much respect in the world for vast application in many areas such as plasma heating, linear accelerators, radar, communication, electronic countermeasure and so forth

    迴旋脈塞器件-迴旋管作為大功率毫米波源，在等離子加熱、線性加速器、雷達、通信及電子對抗等領域有著廣泛的應用前景，由此受到了國際上的高度重視。
  20. Being high power resources of millimeter - wave radiation, based on electron cyclotron maser, gyrotron has been pay much respect in the world for vast applications in many areas such as plasma heating, linear accelerators, millimeter wave radar, communications, electronic countermeasure and so forth. specifically in twenty years later, there was much developments on gyrotron

    迴旋脈塞器件? ?迴旋管作為大功率毫米波源，在等離子體加熱、線性加速器、雷達、通信及電子對抗等領域有著廣泛的應用前景，由此受到了國際上的高度重視，特別是近二十年來，迴旋管得到了快速的發展，並成為研究的熱門方向。
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