波導衰減器 的英文怎麼說

中文拼音 [bōdǎoshuāijiǎnqì]
波導衰減器 英文
waveguide attenuator
  • 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
  • 衰 : 衰動詞（衰弱） decline; wane
  • 器 : 名詞1. （器具） implement; utensil; ware 2. （器官） organ 3. （度量; 才能） capacity; talent 4. （姓氏） a surname
  • 波導 : [物理學] （用在微波波段傳輸電磁波的裝置） waveguide; duct
  • 衰減 : attenuation; decay; damping; reduction; rejection; weakening; deamplification; dampening; dying o...
  1. Two kinds of filters are presented : by transferring the conventional waveguide cavity filter to the siw, a narrow bandstop filter is designed and simulated, get characteristic of narrow - band bandstop filtering. for example, relative bandwidth 1. 2 %, most attenuation of 48db in band. electromagnetic bandgap ( ebg ) structures present “ forbidden band ” characteristics, siw features high - pass characteristics, so bandpass filters can be composed by combing ebg and siw

    本論文提出了兩種基片集成波導濾波器結構:將傳統的腔體濾波器概念運用於基片集成波導結構，設計出了一種窄帶帶阻濾波器，對其進行模擬，得到了窄帶帶阻濾波特性，如相對帶寬為1 . 2 % ，最大衰減為48db 。
  2. We had fabricated the variable optical attenuator of mmi structure with ridge wave - guide structure and also studied the reactive iron etching of silicon. at last, we tested the variable optical attenuator and draw some conclusions. after testing, we can draw a conclusion that the technology parameter of the device is ideal

    在分析y分支和多模干涉器型（ mmi ）的光學衰減器結構的基礎上，採用脊形波導結構製作了mmi結構的可變光學衰減器，並對硅的刻蝕技術進行了研究和探討，最後對制得的器件進行了測試研究。
  3. This modulator works with the guided - wave reflectance peak, in which the light intensity is changed by the variation of the refractive index of poled polymer due to the electro - optic effects. device performances have been theoretically and experimentally investigated. we also successfully carried out experiments of video signal transmission using the proposed modulator

    該調制器工作于金屬包覆波導的衰減全反射導模吸收峰，利用極化聚合物電光材料的折射率對導模吸收的影響來實現電光調制，並對器件的性能指標進行了實驗研究，同時利用製作的反射型電光調制器進行了視頻信號良好地傳輸實驗。
  4. Second, the mode fields of a strip waveguide and some slab waveguides have been simulated by applying finite - difference time - domain ( fdtd ) method. the curvature radius ; vicinity coupling ; transition loss and power attenuation of a s - shape bend waveguide have been analysed numerically by employing wide angle finite - difference beam propagation method ( fd - bpm ), as well as the coupling loss of optical fiber and waveguide. in addition, the framework of the s - shape waveguide laser has been

    其次，應用時域有限差分法，結合波導模式理論對條形與平面波導進行了模場模擬;應用廣角有限差分光束傳播法，對s形彎曲波導的曲率半徑、鄰近耦合、過渡損耗、功率衰減以及波導與光纖的各種耦合損耗進行了數值分析，並在此基礎上，對s形波導激光器的結構作了初步設計。
  5. And waveguide has a too large structure to satisfy the requirement when working at a low frequency band

    而波導天線傳感器在衰減較小的低頻區尺寸太大也達不到要求。
  6. Concerning the problem of low accuracy and speed of filter in bearings - only target tracking, the algorithm of underwater bearings - only passive target motion analysis is improved from ekf to maekf

    摘要針對純方位被動目標跟蹤中擴展卡爾曼濾波器容易發散，從而導致濾波精度差而且收斂速度慢的問題，文中將水下純方位被動目標運動分析中的擴展卡爾曼濾波演算法改進為衰減記憶卡爾曼濾波演算法。
  7. Presented in this paper is the investigation of some problems existing in the far - field method widely used in hpm measurement. first, the errors are analyzed from the practical calculation of the directivity for the radiation of the te11 mode in the circular waveguide. secondly, the results obtained from simulation and experiments are compared with each other on the effective area of the receiving antenna of certain types, and the power capacity are calculated for these antenna

    首先，對圓波導te11主模輻射方向性系數實際計算中存在的誤差進行了分析;其次，對一些型號的接收喇叭有效面積進行了模擬和實測對比，並通過計算給出了這些型號的接收喇叭的功率容量;最後，實驗測定了微波脈寬對一些微波器件? ?同軸型檢波器、同軸型衰減器及微波電纜性能的影響。
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