波導輸出 的英文怎麼說
中文拼音 [bōdǎoshūchū]
波導輸出
英文
waveguide output- 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...
- 導 : 動詞1. (引導) lead; guide 2. (傳導) transmit; conduct 3. (開導) instruct; teach; give guidance to
- 輸 : Ⅰ動詞1 (運輸; 運送) transport; convey 2 [書面語] (捐獻) contribute money; donate 3 (失敗) l...
- 波導 : [物理學] (用在微波波段傳輸電磁波的裝置) waveguide; duct
- 輸出 : 1 (從內部送到外部) export 2 [電學] output; outcome; outlet; out fan; fanout; 輸出變壓器 output ...
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The theory of wilkinson power combiner and ratrace coupler is analyzed by using the odd - even mode method in this thesis. on the basis of the theoretical analysis, we designed and tested the wilkinson power divider, the modified wilkinson power divider and ratrace coupler, good agreement is observed. in addition we propose a power combiner based on a waveguide - to - microstrip transition using antipodal finlines. this structure united the two functions of transition and equal power division, it can not only be used in the circuit power combiner but also be used in spatial power combiner
另外提出一種基於鰭線波導微帶過渡功分器,該結構將過渡與功分兩種功能完全結合,不但可以用於電路合成式功率合成,也可用於空間功率合成中。對功率合成器,其主要指標是輸出功率和效率,其中提高輸出功率和效率的一個方法是在輸出端抑制諧波,主要是對二次諧波的抑制。In the non - coaxial bwo of l - band, the radius of the slow - wave structure is very large, and the volume and weight of the guiding - magnetic system are also very large. thus, the non - coaxial bwo of l - band is bulky and lumbersome and is inconvenient for real application
若採用非同軸相對論返波振蕩器實現l波段的微波輸出,則要求慢波結構的平均半徑很大,導引磁場系統的體積和重量會變得較大,這給器件的小型化帶來了很大的困難。Carries created by ultra - fast laser pulse accelerate in the field of the photoconductor and form a transient photocurrent. the shape of the photocurrent lies on the movement of the carriers, as well as the movement of the carrier ' s lies on the field in the photoconductor
光電導體中的載流子在光電導體內的運動情況決定了所輸出電脈沖的波形,而載流子的運動是在光電導體內部電場的作用下進行的,所以光電導體內的電場對光電導開關的性能有顯著的影響。The multi - pass amplifier was being adopted proverbially, which could improve the output energy consumedly. but on the other hand the beam quality was degraded by the severe wave - front ' s aberration that exacerbated by multi - passing the beam through the amplifier
多程放大系統因能夠較大提高系統的輸出能力,故得到較為廣泛的應用;但由於多程放大級各類波前誤差的相干疊加,使系統輸出激光的波前發生比較嚴重的畸變,導致光束質量的下降。A conventional edg design is based on the rowland circle on which the end points of the input and output waveguides located
原有edg採用rowland圓設計,輸入輸出在圓弧曲線上由條形波導引出。On the other hand, waveguide could compose high quality components but hard to be integrated for their huge volume. substrate integrated waveguide ( siw ) is a new kind of microwave transmission line in these years which can be widely used in microwave and millimeter wave circuit
基片集成波導( substrateintegratedwaveguide ,簡稱siw )是一種近年內出現的新型微波傳輸結構,可以廣泛地應用於微波及毫米波電路中Because of its complexity, no analytic solution can be got. to better understand the propagation characteristics of the waveguide, it is necessary that analytic solution should be got for simpler structure. based on the background, in this paper, we discuss the propagation characteristic of ray in the planar symmetric metal - clad uniaxial waveguide ( the waveguide layer is uniaxial crystal
但是以前人們只局限於對非對稱金屬波導(即在各向異性介質波導層一面上鍍有金屬膜)的討論,由於其復雜性,他們沒有給出解析解,為了能更好的解析討論其傳輸特性,需要討論較簡單的波導結構。The vector - based plane - wave spectrum method ( vpws ) is improved, which can directly obtain the far field diffractive pattern depending on the output near field data in the bor fdtd meshes by use of the deduced formulas in this dissertation
改進了平面波譜傳播演算法( vpws ) ,推導出的公式可以由borfdtd計算空間內的近場輸出數據直接計算出遠場的電磁場分佈。The problem discussed in this paper is to separate two ( or more ) input signals from observed signals which are generated by passing input signals through diffrent unknown multi - input multi - output linear systems. it is proved that the input signals can be separated when they are independent identitically distributed ( i. i. d ) signals. a new algorithm for multi - input multi - output blind deconvolution via maximum entropy is presented which needs no information about the input signals and mixing filters
本文研究的問題是從觀察信號中分離出兩個(或者更多個)輸入信號,其中每一組信號分別通過不同的未知多輸入多輸出線性系統.本文證明了當輸入信號是兩兩相互獨立的獨立同分佈信號時可以分離出輸入信號,並導出了基於最大熵的多輸入多輸出盲解卷新演算法.這個演算法不需要任何關于輸入信號和混合濾波器的先驗知識Abstract : according to the continuative condition of the tangential fields on the slot aperture which is the inclined narrow - slot on the broadwall of a sectoral waveguide, the moment method is used to calculate the magnetic current coefficient and distribution. then the scattering field, the scattering parameter and the equivalent impedance are obtained. leting only the te11 dominant mode propagates in the waveguide, the scattering parameters and the normalized equivalent series impedance in the x - band are computed. the basis disigned the slot antenna and the slot array is offered
文摘:根據縫隙口面切向場的連續條件,採用解析數值法矩量法,對扇面波導寬壁上窄的斜縫進行了計算,解得了磁流系數及其分佈,並得到散射場、等效散射參量及等效阻抗等重要參數.假定波導中僅有te11主模傳輸,在x波段計算了散射參量和歸一化等效串聯阻抗,給出計算結果,為縫隙天線和縫隙陣列設計提供了依據Abstract : a new waveguide which can change the wide wall of a rectangular waveguide into a symmetric arc wall is named as a cam - rectangular waveguide. comparing to sectoral waveguide, the new waveguide has the same voltage characteristics and is easier to be produced and fixed. an approximate formula of the dominant mode fields and the normalized conductance of a longitudinal resonant slot cut in the curved wall of a cam - rectangular waveguide are given. a resonant slot linear array in c & x band is designed, in which the slot voltage distribution is equiphase and the input is matched. the input voltage stationary ware ratio and the h - plane pattern of the antenna are measured. the experimental results show the conformance with theoretical results
文摘:把常用的矩形波導一個寬面改成圓弧形構成的波導稱為圓突-矩形波導.這種波導與扇面波導相比:電性能相當;波導管結構更加簡單,容易加工,便於安裝.文中給出圓突-矩形波導中主模場,圓曲面上縱向槽歸一化諧振電導近似公式.設計了c和x波段波導曲面縱向諧振縫隙線陣,縫隙電壓相位為同相分佈,輸入端匹配.實際測量了天線輸入端電壓駐波比和h面方向圖,理論與實驗相吻合Many high - power microwave ( hpm ) sources utilize an azimuthally symmetric output mode such as the tm 01 circular waveguide or the coaxial tem mode as output mode. if radiated directly these azimuthally symmetric modes will generate a doughnut - shaped pattern, with a null on boresight
許多高功率微波源產生的微波模式都是圓波導軸對稱模式,由於其輸出埠的口徑場分佈具有圓對稱性,將導致軸向為零的環狀遠場方向圖。For example, in some applications an edg without input and output waveguides is preferable and it is much easier to fabricate. an edg of flat input / outputs can also maintain a good linear dispersion and a perfect focused field as a conventional edg this paper presents a design method for an edg of flat input / outputs is presented
而平場輸入輸出的edg在很多應用中可以省去製作輸入輸出波導,大大簡化製作工藝;同時平場輸入輸出的edg能夠保持良好的線性色散和聚集效果。And the intensity of electric field decayed by - 41. 5db. when the length of forbidden region was increased, the output signal distorted seriously and some obvious high frequency components were found
當波導截止區的長度增加時,輸出波形嚴重失真,出現了較為明顯的高頻成分。On the other hand, the electric field and intensity distributions of the he11 mode in the hollow fiber are calculated by using the exact solutions of maxwell equations based on the vector model, and the diffracted near - and far - field distributions of the he11 - mode output beam under the fresnel approximation are studies. we derive an analytical expression on the far - field distribution of the he n - mode output beam in free space and discuss its applicable condition. we also analyze and compare the differences between the he11 - and lp01 - mode output beams, and find that the near - field distribution of the lpoi - mode output beam is a gaussian - like one, but the near - field distribution of the he11 - mode output beam is a doughnut - like one, whereas the far - field distribution of both the lp01 - and he11 - mode output beams are a doughnut one
此外,我們把中空光纖中lp _ ( 01 )模(標量模型)和he _ ( 11 )模(矢量模型)的場分佈以及它們各自的輸出光束的近場與遠場分佈進行了比較,發現兩種模式的輸出光束在近場分佈有很大的區別, lp _ ( 01 )模輸出光束在近場是一個高斯分佈,而he _ ( 11 )模輸出光束在近場是一個中空光束,在遠場兩種模式的輸出光束分佈是基本一致的,這正是由於在中空光纖中採用了弱波導近似以後所引起的誤差。After that, we advanced a new optimized fd _ bpm arithmetic. using of this new optimized fd _ bpm arithmetic, we developed numerical simulation program to simulate the waveguide and finish the template by those simulation results. then we analyzed the interdigital transducer ( idt ) and acquired the device parameters
然後提出了一種改進的有限差分光束傳輸法( fd _ bpm )演算法,利用此演算法對器件所需的波導進行了優化模擬計算,根據這些優化值設計製作了光刻模板The study shows that the output pulse value of resistance absorption equipment is related to the chopper switch conduction ration and the selection of lagging angle
研究表明,地面電阻吸收裝置的輸出電流脈動與斬波器的導通比、各支路斬波器的開關滯后角有關。The algorithm of strapdown inertial navigation system is also discussed and then use the flight - track generator to give a simulation, since a closed loop feedback integrated navigation system is designed in this paper, and the output of the filter must feed back to the strapdown inertial navigation system, the analysis of the algorithm in strapdown inertial navigation system is important. the scheme to design the trajectory of gps and the simulation of gps constellation are then studied, the simulation of gps constellation is given from the calculation of vernal equinox base on the principle of celestial mechanics, this method of different from other methods given by other paper and is useful to the research of satellite navigation system. a new method to abstract noise modal in integrated navigation system is proved to be useful in practice, this method, which is given by use the principles of stochastic processes, statistics, time series analysis, and system identification, is suitable for the kalman filter in integrated navigation system
如航跡產生器的設計,該航跡產生器是研究組合導航問題的前提,從國外一些研究組合導航系統的文獻中可以看出,設計這樣一個航跡產生器是非常必要的,所以本文自行設計了這樣一個系統;還討論了捷聯慣性導航系統中捷聯解算的方法,並進行了模擬研究,由於在本文設計的閉環反饋式組合導航系統中,對捷聯慣導系統的平臺誤差進行閉環控制,需要將濾波器輸出的校正量反饋到捷聯解算內部,所以必須對捷聯解算進行深入的研究和分析,更何況捷聯解算問題本身也是導航界的一個熱門研究課題;另外,本文還介紹了gps軌道及其星座模擬的設計思想和方案,與以往gps軌道和星座模擬不同的是本文從天體力學中計算春分點開始,逐步進行gps軌道及其星座模擬,這樣的設計方法對從事衛星導航的研究工作是有價值的;還對組合導航中誤差建模方法進行了研究,綜合運用隨機過程、概率統計、時序分析及系統辯識等方面的理論提出了一套適合組合導航卡爾曼濾波的誤差建模方法,並運用實際研究工作中的測量數據對該方法進行了驗證。The angle spectrum of inputting optical signals is received by the input surface of arrayed waveguides. whereas the diffraction process of light beam outputed in slab waveguide is a process of " composing frequency and generating image ". the reason that fraunhofer diffractive pattern can be gained on outputting waveguide surface is that output ends of arrayed waveguide distribute on the arch structure which leads bent phase factor to offset the quadratic phase factor in fresnel diffraction
輸入平板波導內光束的衍射過程是「分頻成譜」的過程,在陣列波導的輸入面接收到的是輸入光信息的角譜;而輸出平板波導內光束的衍射過程則是「合頻成像」的過程,正是由於陣列波導輸出口排列分佈在圓弧形結構上,其彎曲位相因子消去了菲涅耳衍射中的二次位相因子,從而在輸出波導面上能夠得到夫瑯和費衍射圖樣。On the basis of the theoretical analysis, design and the study on the fabricating technique, the relationship between hull height and writhe speed, the output light which proves the single - mode condition, and the split peculiarity of output light, was gotten
在前面器件理論分析、設計和工藝研究的基礎上,我們得到了膜厚度與轉速關系特性曲線;得到直波導輸出光斑,驗證了波導參數滿足波導單模性的要求;得到的y分支的輸出分光特性。分享友人