長波天線 的英文怎麼說

中文拼音 [zhǎngbōtiānxiàn]
長波天線 英文
long-wave antenna
  • 長 : 長Ⅰ形容詞1 （年紀較大） older; elder; senior 2 （排行最大） eldest; oldest Ⅱ名詞（領導人） chief;...
  • 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...
  • 線 : 名詞1 （用絲、棉、金屬等製成的細長的東西） thread; string; wire 2 [數學] （一個點任意移動所構成的...
  • 長波 : long wave （l. w. ）; kilometer wave; major wave; [氣象學] planetary wave長波段 long-wave band
  1. This has since been confirmed by russian sources ; the transmitter consists of two swept - frequency generators of sinusoidal voltage and two parallel horizontal grounded antennas, each about 60 km long

    這一點被來自俄方的消息所證實；發射機有兩個掃頻發生器，產生正弦波，同時有兩幅相互平行的水平地面天線，每個天線有60千米長。
  2. The basic concept of siw is that it use the top and bottom layers of metal together with two row of vias is very small compared with wavelength, the dissipation loss of radiation is very small. it acts like a rectangular waveguide filled with some dielectrics, so components which can be composed by rectangular waveguide can also composed by siw such as antenna, filter, power divider, coupler, resonator

    基片集成波導的基本概念是利用基片的上下金屬板和兩排間隔一定距離的金屬孔構成波導的金屬壁，由於每排金屬孔孔間距遠小於波長，因此由縫隙泄漏的能量很小，這相當于內部填充了介質的矩形波導，所以能夠用矩形普通波導實現的結構也都可以用基片集成波導來實現，比如功分器、濾波器、天線、耦合器、振蕩器等。
  3. Beverage is noted for his experimentation with long wire antennas and received a patent on the wave antenna on june 7, 1921 which is commonly referred to today as the beverage antenna

    貝威爾基於1921的6月7日憑著他著名實驗的長線天線來申請了波長天線專利，所以今天都指貝威爾基天線誕生於1921年6月7日。
  4. A new waveguide made of changing a wide wall of a rectangular waveguide to a uniform curved wall is called conformal waveguide. a kind of expression of approximate solution for domain mode of the new waveguide, including symmetric, unsymmetric arc, parabolic arch, hyperbolic arch, elliptic arch, etc., is constructed by using boundary condition of mental waveguide, variational method and boundary element method. by using the equivalence principle, an approximate calculating formula for equivalent resonant conductance of a narrow longitudinal halfwavelength slot cut in the curved wall of the unsymmetric arcrectangular waveguide is derived, and the result is shown. although this solution is approximate, it can solve the problem in designing the slotted antenna of such conformal waveguide

    把矩形波導一個寬面外突成均勻曲面構成的新波導統稱為共形波導.利用金屬波導邊界條件、變分法、邊界元素法構造這種新波導中主模場的一種近似解表達式，包括曲面橫截線為對稱、非對稱圓弧，拋物線弧，雙曲線弧，橢圓弧等.然後根據等效原理，推導非對稱圓弧矩形波導曲面上窄的縱向半波長縫隙的等效諧振電導的近似計算公式，給出計算曲線.這種解雖然是近似的，但卻能解決這類共形波導縫隙天線的工程設計
  5. In this thesis, our work is focused on analyzing the effects of mutual coupling between elements of the thin dipole antenna array. the effects of mutual coupling on the antennas pattern synthesis and the amplitude - phase consistency of the input impedance of the uniformly - space liner array are presented. a new method that used the mutual coupling to synthesize the pattern is been given

    本文就是以此為出發點，將半波長細線對稱振子線天線陣作為研究對象，以分析天線陣列的互耦影響為核心，討論互耦對幾種方向圖綜合技術的影響，並從兩種不同的角度提出了對陣元互耦的校正方法。
  6. 1550nm is chosen as the work wavelength, cassegrain transmitting - receiving antenna as the optical antenna of the system through the elucidation of how to choose the work wavelength and optical antenna of comm - unication system. the structure and theoretical design parameter of apt sub - system have been presented through the discussion of the optical signal power estimation of apt sub - system, beam divergence angle, pointing error, and error signal extraction. compared with existed optical wireless communication system, the design scheme proves applicable

    通過對通信系統工作波長選擇、光學天線選擇等闡述，選擇了1550nm作為系統工作波長、卡塞格倫（ cassegrain ）收發合一天線作為系統光學天線；通過對apt子系統功率測算、束散角和瞄準誤差、誤差提取信號等的討論，給出了apt子系統結構和理論設計指標，並將其與現有的光無線通信系統進行比較，說明該設計方案是可行的。
  7. 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

    本文在對ctcs中的點式應答器系統原理及組成進行分析和消化的基礎上，對系統中通道的幾個關鍵技術進行了詳盡的研究，主要分為三個方面: 1 ，提出並研製了新型的片式環形磁感應天線，並對傳輸能量載波的天線的近場互感特性進行了分析，得到互感效率隨天線的周長大小以及導帶寬度的變化規律，並通過計算機模擬和試驗對天線的近場波瓣圖進行了研究;通過分析寬帶匹配技術中的實頻法理論，設計了信號載波天線的寬帶匹配網路。
  8. A gas - jet - type vuv source that can give a spectrum in the wavelength range of 5 ~ 200nm was used in this paper to research of vuv radiation effects on upilex films which used as canopy of the space inflatable antennas and al / kapton films

    利用射流式真空紫外地面模擬設備研究了5 200nm波長范圍內的真空紫外輻照對al / kapton薄膜與空間充氣展開天線透射面材料upilex薄膜的性能影響。
  9. Surgical treatment of giant cell tumors of long bone combined with inserted microwave antennas induced hyperthermia

    插入式微波天線陣列誘導高溫治療長骨骨巨細胞瘤
  10. A optimized design of the bend is made using the high frequency simulation software. 5. the coupler and the bend cause a phase change in the wave transmitted past the coupler in the sinuous feed and also a phase change in the coupled po ~ ver

    分析計算了耦合器、波導彎頭引入相位誤差對天線性能的影響，在此基礎上，採用對各個耦合器之間波導長度調節的方法，對陣面相位分佈進行補償。
  11. The author ? major contributions are as follows. 1. with the performance requirement ( the pattern of the antenna, the rang of scanning angle, the maximal sidelcbe level and the beam ~ vidth ) givcn, a method is presented to determine the basic parameters of a serpentine feed, which includes the distance and ~ vaveguide length bet ~ veeii t ~ vo couplers, the size of the arrays and the number of components

    根據天線的工作頻帶、掃描范圍、副瓣電平、半功率寬度等技術指標要求，給出了確定波導慢波線基本結構尺寸的計算公式，即對相鄰單元之間的空間距離、耦合器之間的饋線波導長度、陣列的大小和單元數的計算。
  12. The simulated results show that we can improve the sensitivity by setting the optical bias at / 2, reducing the gap of electrode, increasing the overlap integral factor, reducing the insert lose, adopting suitable segmentation number, increasing the electrode length, increasing the optical power, reducing the wavelength and the relative intensity noise and reducing the receive bandwidth ; obtain the wider bandwidth utilizing reducing the electrode length and the capacitance of modulator, segmentation the electrode ; increase the dynamic range using lowering noise, increasing the optical power at the detector and lower optical bias

    通過計算得知，使傳感器相位偏置為/ 2 ，減小電極間距，提高電光重疊因子，減小器件插入損耗，採用合適的分段數，增加電極長度，增大光功率，降低激光的波長，減小相對強度噪聲，減小接收帶寬，對提高靈敏度的效果是非常明顯的。而減小天線長度，降低調制器電容，電極分段，都可以獲取較大的帶寬。降低系統噪聲;增加到達探測器的光功率，採用較低的光學偏置，都可以增大線性動態范圍。
  13. Over - the - horizon radar ’ s beam - frequency is high frequency band and its wavelength is so long that the annate ’ s characters are very complicated when applicated on the ship. the character of coupling between cells and the environment must be measured to compensate in the radar signal process step. the ship - based over - the - horizon radar uses cfa ( crossed field antenna ) as array antennas ’ cell

    艦載超視距雷達使用高頻信號作為發射頻率，其波長較長，在艦船有限的空間內，陣列天線的陣元之間的耦合與陣元與背景之間耦合都十分嚴重，必須測量陣列天線通道的幅相一致性，作為雷達信號處理的補償參數。
  14. Because waves can vary from 18 feet for channel 2 television to three inches for cellular telephony, proper antenna length is key to reception

    因為電波波長從第二頻道電視用的5 . 5公尺到行動電話用的7 . 6公分都有，所以適當的天線長度正是收訊品質的關鍵。
  15. Fig. 3 integrated wind profiler and rass at sha lo wan. the rectangular antenna in the middle transmits and receives radio waves

    中間的長方形天線作用是發放和接收無線電波，周邊的四個圓柱形擴音器則向空中發出聲波。
  16. The frequency characteristic of the admittance of radiating slot and the waveguide wavelength of radiating waveguide is the main factor that influences the bandwidth of the slot array antenna

    摘要輻射縫隙導納及波導導內波長的頻率特性，是影響裂縫天線帶寬的主要因素。
  17. Quarter - wave aerial

    四分之一波長天線
  18. Antenna span, for one, is dictated by the type of broadcast it captures ; an incoming radio - frequency wave resonates best when an antenna ' s length is one half that of the wavelength

    原因之一是，天線的全長取決于要擷取的播送類型；如果天線的長度是波長的一半，就能讓傳來的無線電頻率波達到最佳共振。
  19. Its size is small ( with an unit length of about 23. 7 % of the wavelength in the cover medium ), and its effectiveness is evident ( the patch antenna ' s directivity is increased by 3. 16db )

    這種結構具有尺寸小（邊長僅為介質中波長的23 . 7 ） 、效果明顯（將貼片天線的方向性系數提高了3 . 16db ）的優點。
  20. During the ceremony, mr. c y lam, director of the hong kong observatory, recalled that the gathering of meteorological observational data from the mainland relied upon the reception of short wave radio broadcast by mtc colleagues. the morse code broadcasts were skillfully decoded into textual messages, and which were kept in good conditions

    天文臺臺長林超英于會上憶述：從前接收中國內地氣象觀測數據，是依靠氣象電信中心同事細心收聽短波無線電廣播，把資料從摩斯電碼morse code一一編譯成文字報文，並完好的保存下來。
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