dipole antenna 中文意思是什麼

dipole antenna 解釋
半波天線,雙極天線
  • dipole : n. 【物、化】1. 偶極。2. 偶極天線。
  • antenna : n. （pl. -nae , antennas）1. 【動物；動物學】觸角。2. 【無線電】天線〈英國常用 aerial〉。
  1. To broaden the antenna ' s impedance bandwidth and its radiation pattern, a novel printed dipole antenna with reflecting structure of v - shaped ground plane was proposed

    摘要為了擴展天線的阻抗帶寬和改善天線的方向性，提出一種採用了地平面反射結構的新型印製偶極子天線。
  2. It has the good qualities of both tem horn antenna and dipole antenna, less dimensions construction, good direction and higher efficiency. its impedance and radiation are analyzed. good agreements are obtained from experiment and calculation

    這種平面喇叭天線採用了新型的平衡饋電方式，結構簡單，性能良好，同時結合了tem喇叭和振子天線的優點，結構維數低，具有較強的方向性、較高的效率，在uwbsar軌道系統實驗中取得了比較理想的結果。
  3. The simulation results are compared to the normal dipole antenna in order to observe the influence of fractal and investigate the effect of antenna miniaturization. the relationship between miniaturization and fractal dimension is researched. the koch and 3 / 2curve fractal unit are applied to yagi - uda antenna, the performance like impedance characteristic and radiation pattern is simulated by cst microwave studio ?

    對其阻抗特性及輻射方向圖進行了模擬計算，並分別與未應用分形的普通半波振子天線相比較，觀察分形對天線性能的影響，以檢驗分形天線小型化的效果，研究了尺寸縮減性與其分形結構的分形維數之間的關系。
  4. The poynting vector that represent the flow of electromagnetic power density on a sphere from a linear dipole antenna is approximated by the summation of the field of segmented line current as hertz dipoles

    以赫芝偶極之電磁場合成任意長度偶極天線在球面上電磁功率密度流之時變玻因亭向量。
  5. Analyze the linear dipole array with uniform element spacing using the method of moments ( mom ), derive the analytical expression for the recovered signal with the direct data domain method, demonstrate the effect of the mutual coupling on the performance of the antenna array by examples, the degradation of the system caused by the mutual coupling is simulated and analyzed in two different electromagnetic environments such as the weak and strong interference

    用矩量法計算了幾個信號同時照射時對稱陣子均勻直線陣的電流分佈，用直接數據域演算法推導了此接收陣列的恢復期望信號的表達式，舉例說明了互耦對陣列天線性能的影響，數值模擬了在弱干擾和強干擾下，互耦造成系統性能下降的情況並分析了原因。
  6. 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。
  7. Rfid antennas we research operate at 915mhz, which belong to vhf, therefore microstrip patch antenna is adopted as base station antenna and various balanced dipole antennas are employed as tag antennas. then, a brief introduction is given on the radiating principles of the microstrip antenna

    由於本課題所研究的rfid天線主要工作於915mhz ，屬于甚高頻波段，因而基站天線主要採用微帶貼片型，標簽天線主要採用各種對稱振子型天線。
  8. Based on the previous theory, the fdtd method is used to analyze practical antennas, which include dipole antenna, microstrip antenna, log - periodic antenna and broadband resistance loaded monopoles. the particular problems that occur in the calculating of vary type antennas are discussed. the cross - section field of microstrip line and two - conductor line are analyzed, and the effect on the numerical result arising from the incident cross - section mesh size is discussed

    在前面理論的基礎上，將fdtd用於振子天線、微帶天線、對數周期天線、電阻加載振子天線等各種天線的計算中，對各種不同類型天線計算中所遇到的特殊問題進行了詳細的討論，並分析各種開放場傳輸線如微帶線、平行雙線等橫向場分佈，討論了入射網格橫向截斷區域的大小對計算結果的影響。
  9. Antennas are feed by 50ohm coaxial cable and feed networks are unnecessary. and then, tag antennas are analyzed and designed, which include plate balanced dipole antenna, triangle balanced dipole antenna and inductively coupled feed meander - line antenna. theory analysis and simulations are given and optimal results are achieved

    然後，對標簽天線進行了分析與設計，分別對片狀對稱振子天線、三角形對稱振子天線、感應耦合饋電折疊線天線等天線形式進行了研究，給出理論分析和模擬計算，得到滿足設計要求的各種形式的標簽天線。
  10. So at first the on the base of the deep study on method of moments, this dissertation analyses the problem of the mutual coupling of the thin dipole antenna arrays

    所以本文首先運用矩量法對細線對稱振子陣中陣元互耦效應進行了分析和計算。
  11. In the following section, the thesis demonstrated the robustness of the proposed method in the computation of radiated electromagnetic fields of switched mode power supplies by means of a numerical study on the electromagnetic fields of an electric dipole antenna

    應用本文開發基於pml吸收邊界條件三維時域有限差分計算軟體，計算了電偶極子天線的三維輻射電磁場，並將計算結果與解析解進行了對比分析，驗證了時域有限差分法計算高頻開關電源輻射電磁干擾的有效性。
  12. Aluminum choke rings and a dorne margolin dipole antenna element, low - noise amplifier exhibit superior low - noise performance, obtaining

    流圈和一個dorne margolin偶極元件，低噪音放大器lna體現了出色的低噪音功
  13. The half wave dipole antenna becomes quite common where space permits

    半波偶極天線半波偶極天線變得相當共同空間允許的地方。
  14. Folded dipole antenna

    折疊偶極天線
  15. Analysis and comparison of the different source location point ' s thin - wire dipole antenna

    不同饋點的細線偶極子天線的分析與比較
  16. Thz radiation generated from a si3n4 covered gaas photoconductive dipole antenna is investigated in the paper

    分析了瞬態電場對thz偶極天線輻射的影響。
  17. Secondly, a microstrip antenna used in portable reader and the two novel tag antennas which are a dual - band dipole antenna and a circular polarized microstrip antenna are developed

    提出並研製了新型的雙頻段（ 900mhz / 2 . 4ghz ）電子標簽天線、圓極化微帶型標簽天線以及便攜式讀出裝置用微帶天線。
  18. In this paper, resonant characteristics of the meander - line dipole antenna depended on times of meanders, the height of meanders and the angle of meanders are analyzed

    摘要本文研究了由矩形彎折線構成的偶極子天線的諧振特性，分析了彎折線偶極子天線的彎折次數、矩形彎折的高度以及彎折角度等參數對天線諧振特性的影響。
  19. This thesis contributed to the comprehensive study of the finite - difference time - domain ( fdtd ) method and its application to the numerical computation of radiated electromagnetic fields in switched mode power supplies. the work includes mainly three parts : the study on the performance of pml absorbing boundary condition applied to pseudo low frequency electromagnetic problems ; the validation of the fdtd method with pml absorbing boundary conditions and the corresponding computer software based on the numerical study of the electromagnetic field of an electric dipole antenna, and its application to the numerical computation of radiated electromagnetic fields in switched mode power supplies ; the development of an improved alternating direction implicit finite - difference time - domain method

    在綜合前人工作基礎上，本文對時域有限差分（ fdtd ）法及其在開關電源輻射電磁場數值計算中的應用進行了系統的分析和研究，其核心內容包括：偽低頻電磁場數值計算中pml吸收邊界條件性能的研究；基於基準問題?電偶極子天線三維輻射電磁場，驗證了本文構造的基於pml吸收邊界條件的三維fdtd法及其計算軟體，並應用於高頻開關電源輻射電磁場的數值分析；提出了一種改進的交替方向隱格式時域有限差分法。
  20. It is demonstrated that changing parameters of the dipole antenna is an effective method to adjust its resonant characteristics ; the good reduced size can be achieved by properly altering its parameters ; and the meander - line dipole antenna are suitable for the application as rfid tag antenna

    結果表明，彎折線偶極子天線的參數改變對天線諧振特性有較強的調節作用，適當的改變天線的參數可以獲得較好的天線尺寸縮減特性，適合rfid標簽天線的應用。
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