antenna antenna radiation pattern 中文意思是什麼

antenna antenna radiation pattern 解釋
天線輻射圖
  • antenna : n. （pl. -nae , antennas）1. 【動物；動物學】觸角。2. 【無線電】天線〈英國常用 aerial〉。
  • radiation : n. 1. 發光，射光，放熱，放射，發射。2. 【物理學】輻射；放射物；輻射線[熱、能]；照射（作用）。3. 【動、植】輻射形；【測】射出測量法；【醫學】射線療法。
  • pattern : n 1 模範，榜樣；典範。2 型，模型；模式；雛型；【冶金】原型。3 花樣；式樣；（服裝裁剪的）紙樣；圖...
  1. Emphatically, this paper discusses the pattern of signal and antenna radiation of the system, the design principles and technologies of audio - generator and monitor, and the modification of measurement deviation. through special tests and aviate experiments, it has been proved that the performance of the domesticalized system is better than of the initial system

    文中重點分析了俄制分米波儀表著陸系統的信號格式和天線輻射場型，著重闡述了系統中音頻信號產生器和監測器的設計原理和實現技術，對信號檢測中的測量誤差進行了分析並設計了有效的修正方法。
  2. 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。
  3. The technical specification of radiation pattern envelope for paraboloid antenna used in microwave relay communication systems

    微波接力通信系統拋物面天線輻射圖包絡的技術要求
  4. Truncation effect of rb mockup on antenna radiation pattern

    再入體模型截短對天線輻射特性影響
  5. This switched parasitic yagi - uda antenna uses a yagi - uda antenna as its prototype, and can change radiation pattern by the control of rf switch which is placed at the center of its reflector

    該開關八木天線以八木天線為原型，通過八木天線反射器中部的微波開關控制反射器的通斷來改變開關八木天線的方向圖。
  6. 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。
  7. The paper studies three key problem of base station array antenna for mobile communication, controlled radiation pattern, beam width and passive intermodulation

    本文研究移動通信基站天線中的三個關鍵問題，波束賦形、波瓣寬度、無源交調。
  8. While carrying out the scheme, at first, the basic theory of antenna, array antenna and electromagnetic absorption, the performance parameter of antenna and parabolic antenna are deeply researched. in conformity, the characteristic and calculation of aperture field and near - to - far - field transformation for radiation pattern are detailed analyzed. second, the factors such as, the amount of the antenna elements, mutual coupling between each element, ground and the buildings on earth ' s surface, which affect the performance of array antennas ’ resultant field are stressed discussed

    在系統實現過程中，課題首先從天線、陣列天線，以及電磁場計算方法的基本理論著手，分析了天線與拋物面天線的各項性能參數，以及天線的口面場和近-遠區輻射場的特點和計算;進而，更加深入的討論和研究影響天線陣列合成場強的各項因素，包括系統所使用的天線單元個數對陣列合成場的影響、天線單元之間由於互耦造成的影響、傳播過程中地面和/或地面建築物的影響等。
  9. Optimal antenna radiation pattern integration for multi - beam forming in high frequency radar

    高頻雷達多波束最優天線方向圖綜合
  10. The radiation pattern of the antenna is more rotationally symmetric, and a more reduction on the sidelobe levels of the antenna is achieved as compared to the antenna with the corrugated soft surface. in conclusion, in the present thesis both theoretical and experimental research works have been carried out intensively on patch antennas based on photonic - bandgap structures. it is shown that our photonic bandgap structures can greatly improve the performance of the patch antennas

    該平面圓環結構軟表面天線是在空氣介質的皺褶圓環結構軟表面天線的基礎上改進得到，為了便於比較，我們首先研究了空氣介質的皺褶圓環結構軟表面天線，用fdtd方法並結合pml吸收邊界條件對該天線的性能進行了研究，結果表明天線的帶寬增加，天線的軸對稱性得到了很大改善， e面和h面方向圖的波束幾乎重合，天線的旁瓣和背瓣受到很大的抑制。
  11. In this dissertation, the performance of linearly tapered fin - fed slot antenna ( lwsa ) is discussed in theory, simulation and experiment. the radiation pattern characteristic influenced by changes of antenna ’ s dielectric material, tapered shape and dimension is studied detailedly. though the tapered slot antenna design is very important, a good waveguide - to - finline taper transitions is also needed because they could not thought over separately

    本文主要採用理論分析、數值模擬和實驗等手段對線性漸變槽天線的特性進行了研究，分析了介質材料、天線漸變段以及天線尺寸對天線方向圖的影響，分別設計了天線罩、線性漸變槽天線以及天線的饋電結構。
  12. Analysis of near - field distribution and cross - polarization radiation pattern cavity - backed microstrip patch antenna on a uniaxial substrate

    單軸各向異性背腔式微帶貼片天線的表面縫隙場分佈及交叉極化方向圖分析
  13. Crpa - controlled radiation pattern antenna

    受控輻射天線
  14. The suitable tree - like and 3 / 2curve fractal symmetrical vibrators are chosen to make up a log - periodic antenna ( lpda ), the performance, such as reflectance, input impedance, radiation pattern and gain are also compared with normal log - periodic antenna by cst microwave studio ? simulation, in order to investigate the effect of antenna miniaturization. the application of fractal technology in microstrip antenna is introduced at

    最後本文介紹了分形技術在微帶天線中的應用，研究了minkovski分形雙層微帶天線的阻抗特性和方向圖特性，並與普通雙層微帶天線的性能進行比較，討論了minkovski分形對微帶天線尺寸的縮減作用，同樣研究了分形對交叉極化的影響。
  15. Based on the simulation results, a cobra antenna constituted by four reflectors is designed, the antenna produces a radiation pattern with a boresight peak, and the antenna gain reachs to 28. 4db

    通過數值模擬，設計了一種由四塊反射面組成的cobra天線，天線在軸向上輻射場最強，增益達到28 . 4db 。
  16. The method of moments is used to analyze and calculate the broadband characters of impedance, voltage satanding wave ratio ( vswr ), gain and radiation pattern of larger angle lpda, and the relation between these characters and the parameter of antenna construction is discussed in this paper. based on analysis and calculation, the antenna is designed and tested, and the measured results are in good agreement with the theoretical calculation

    本文採用矩量法分析和計算了對數周期天線在張角較大時，它的阻抗、電壓駐波比、增益及方向圖的寬帶特性，討論了這些特性與天線結構參數之間的關系.根據分析和計算，設計並製作天線進行實驗測試，理論計算和測試結果表明，兩者吻合較好
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