amplifier band 中文意思是什麼

amplifier band 解釋
放大屁頻帶
  • amplifier : n. 1. 【電學】擴大器；擴音器。2. 放大鏡；放大器。
  • band : n 1 帶，繩；帶形物；箍；箍條；嵌條；鑲邊；鋸條； 〈pl 〉 （法官等的）寬領帶。2 束縛，羈絆；義務；...
  1. Design of microwave ultra - broad band low noise amplifier

    微波超寬帶低噪聲放大器的設計
  2. Erbium - doped fiber - amplifier - c - band erbium - doped fiber - amplifier

    摻鉺光纖放大器c波段摻鉺光纖放大器
  3. 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。
  4. The factors limiting the frequency band of the wide - band amplifier are introduced. through analyzing the effects of the intrinsic parameters and parasitical on the frequency characteristics, a method of improving fr of mosfet by using short channel device and making mosfet work at the saturation region through raising vgs is put forward ; the effects of different kinds of circuit configurations on the frequency characteristics and the junction voltage on the voltage pattern circuit, current pattern circuit and frequency characteristics are analyzed. according to the linear theory of transconductance which is applied in the bit circuit, the current pattern amplifier circuit, current transfer circuit and output circuit which consist of mosfet and the wide - band amplifier composed of them are put forward

    介紹了限制寬帶放大器頻帶寬度的因素，通過分析mosfet的本徵參數、寄生參數對頻率特性的影響，提出了採用短溝器件、使mosfet工作在飽和區、抬高柵源電壓等提高mosfet特徵頻率的方法；分析了不同電路組態對放大器頻率特性的影響、節點電壓對電壓模電路、電流模電路頻率特性的不同影響，根據應用於雙極晶體管電路的跨導線性原理，提出了採用mosfet構成的電流模放大電路、電流傳輸電路、輸出電路以及由它們所組成的寬帶放大器，獲得了良好的頻率響應。
  5. This paper starts the research of the liquid floated pendulous accelerometer testing system according to the engineering. at first, this paper gives the brief introduction of the history and present status of accelerometer and its testing technology, the working principium and math model of the liquid floated pendu - lous accelerometer, and then, decides the binary width pulse force retrim loop as the design proposal of testing system, researches the transfer function of every part in the system emphasizly, analyses the stability of the whole accelerometer testing system from the angle of control theoretics by the open loop transfer function of system, and designed the correcting net, analyses the basal problems such as resolution, sampling restraint, precision and so on, designs the hardware testing circuits such as preamplification, band - pass filter, alternating amplifier, phase sensitive demodulatorn, pulse - width modulation, frequency scale circuit, moment current generator. finally, using the graphics program language labv - iew which is designed for testing field especially by ni accomplishes the solfware design of testing system, realized the testing functions

    首先對加速度計及其測試技術的發展歷史和現狀，液浮擺式加速度計的工作原理和數學模型等作了簡要的介紹，然後確定了以二元調寬脈沖再平衡測試迴路為設計方案，並從控制理論的角度進行了分析，著重研究了系統中各部分的傳遞函數，利用系統開環傳遞函數分析了系統的穩定性，同時設計了系統的校正網路;分析了二元調寬脈沖再平衡測試迴路的解析度、采樣約束以及測試精度等基本問題，並按照系統分析的結果設計了包括前置放大、帶通濾波、交流放大、相敏解調、脈寬調制、頻標電路以及力矩電流發生器等測試系統各部分硬體電路，驗證了電路的正確性，最後按照測試系統的要求，採用了美國ni公司專為測試領域所開發的虛擬儀器工具? ? labview作為測試軟體開發工具，利用該圖形化編程語言完成了測試系統軟體部分的設計，實現了測試功能。
  6. The delay chip, whose delay precision can be 10ps, wide band sample - hold amplifier ( sha ), and high speed and precise analog / digital conversion ( adc ) are used in the system

    能夠對5mhz以下的信號進行隨機采樣、波形顯示、頻譜分析，還能夠對採集的波形數據進行存儲、共享。
  7. Broad band amplifier

    寬頻帶放大器
  8. A high efficiency dual - band rf power amplifier has an output and / or input of a high frequency transistor well terminated at the second harmonic frequency for dual - band operation

    本發明乃一種高效率雙頻射頻功率放大器，提供高頻電晶體的輸出端與?或輸入端于雙頻操作中有良好的二階諧波終止。
  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. In active section, in order to meet performance of out put power above 10dbm, the power amplifier module of ka - band is fabricated by using hmc283 to achieve the 14db conversion gain. there are five parts that include of waveguide - to - microstrip ? mixer ? filter ? power amplifier and waveguide - to - microstrip. input signal ' s power is 10dbm, after it pass waveguide - to - microstrip, it ' s frequency is escalate from 30ghz to 35ghz

    該組件由五個部分組成：功率為10dbm信號經過波導? ?微帶過渡，然後混頻，濾波將30ghz提高到35ghz濾除不需要的諧波鏡頻以及三階交調信號，為了彌補混頻濾波的變頻損耗，加一級功率放大器，此放大器採用hittle公司hmc283晶元，此上變頻放大組件完成了上變頻?濾波?放大功能。
  11. Investigation on s - band long pulse relativistic klystron amplifier

    波段長脈沖相對論速調管放大器的實驗研究
  12. The dissertation is mainly on the theory and design of the frequency doubler - power amplifier sets of ka - band. in the passive circuit, we analyzed the characteristic of microstrip and coupled microstrip

    在無源電路部分，我們首先對微帶線、耦合微帶線的傳輸特性和微帶-波導過渡的基本原理進行了分析。
  13. 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。
  14. The x - band limiting amplifier is a part of the front - end for x band receiver. in this thesis, a x - band limiting amplifier is designed

    微波限幅放大器是電子偵察、電子對抗等雷達接收系統中的重要部件，存在著廣泛的應用。
  15. The design of ka - band coupled - cavity traveling wave tube amplifier

    Ka波段耦合腔行波管放大器設計
  16. When signals pass high power amplifier, they would be distorted in amplitude and phase, leading to spectrum spread and distortion of in - band signals, both of which would weaken performance of the whole system in turn

    在無線通信中，信號在通過高功率放大器時會產生幅度和相位失真，造成頻譜擴展以及帶內信號畸變，導致整個系統性能的降低。
  17. According to negative temperature coefficient of vbe and positive temperature coefficient of vt, a framework of band - gap voltage reference is investigated. the reference offer a source of pir, distributed three voltage, one as upper - threshold voltage of dual - threshold comparator, the other as lower - threshold voltage of comparator, the other as direct current voltage for second band - pass filter amplifier

    同時利用pnp晶體管發射結電壓的負溫度特性和發射結差值電壓的正溫度特性設計了一個帶隙基準電壓源。此帶隙基準電壓源本身作為熱釋電紅外傳感器的電源電壓，同時分壓提供雙限電壓比較器的上限電平和下限電平以及第二級帶通濾波放大器的直流電平。
  18. Band width of video amplifier

    視頻放大器頻寬
  19. The amplifier request band width, to adapt radiation pulse randomness and its extremely quick front

    放大器要求頻帶寬，以適應輻射脈沖的隨機性和其極快的前沿。
  20. For implement of wide band modulation, multi - carries and elimination of adjacent channel interference to satisfy ber requirement in wcdma system, which is most popular in 3g technology, the linearity requirement of the base station power amplifier becomes tighter

    以wcdma為代表的第三代移動通信技術，為實現寬帶調制、多載波應用，同時減小鄰通道干擾以滿足通信系統的誤碼率要求，對基站發射機功放的線性指標要求苛刻。
分享友人
分享到 Line

分享到臉書