高增益天線 的英文怎麼說

中文拼音 [gāozēngyìtiānxiàn]
高增益天線 英文
hga high gain antenna
  • 高 : Ⅰ形容詞1 （從下向上距離大; 離地面遠） tall; high 2 （在一般標準或平均程度之上; 等級在上的） above...
  • 益 : Ⅰ名詞1 （好處） benefit; profit; advantage 2 （姓氏） a surname Ⅱ形容詞（有益的） beneficialⅢ動詞...
  • 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...
  1. That the antenna points at the aerocraft very precisely can utilize the gain of antenna, minishing the power of transmitter, and propagating data very gualitily effectly

    在無線測控系統中，天線精確指向飛行目標，可最佳利用天線增益，減小發射功率，高質量的進行控制和數據傳輸。
  2. In actual radar antenna design several thousand elements could be used to obtain a high - gain antenna with a beam width of less than two degrees

    實際的雷達天線設計為擁有數千個單元能夠獲得高增益使波束寬度小於2度。
  3. The result shows that the pbg structure has obvious character of forbidden band at the suitable size, and can be designed to good performance microwave filter. the pbg structure have the character of high resistance, that can reinforce the forward radiation, and reduce the backward radiation, increase the directivity, improve the gain and ameliorate the performance of the antenna. in addition, the pbg structure can also greatly increase the isolation and significantly decrease the coupling between the antenna elements

    研究結果表面，取合適的尺寸時， pbg結構具有明顯的禁帶特性，可以設計成性能良好的微波濾波器； pbg結構具有高阻特性，把這種特性用於微波天線時， pbg結構可以加強前向輻射，減小後向輻射，增大天線的方向性系數，從而提高天線的增益，改善天線的性能，另外， pbg結構還可以大大提高天線單元之間的隔離度，顯著減小天線單元間的耦合。
  4. The results indicate that compared with the antenna without reflecting structure, the proposed antenna achieves broader impedance bandwidth, increases the forward radiation gain and has stronger backward radiation suppression

    結果表明，與沒有地平面反射結構的天線相比，該印製偶極子天線增加了抗帶寬，提高了前向輻射增益，抑制了後向輻射。
  5. High gain circular waveguide antenna using 1 - d electromagnetic band - gap structure

    結構的圓波導高增益天線
  6. With the developing of new switches such as photoconductive switch and sos ( solid opening switch ), both high power and high gain can be got by the uwb antenna array

    隨著各種新型開關如大功率的光導開關的研究成功，超寬帶天線陣列將成為實現高功率、高增益的有效途徑。
  7. Modern wireless communication systems require imminently the appearance of new - style antennas that have the merits of compactness, cost effectiveness, high gain and self - beam - steering ability

    現代無線通信系統迫切需要緊湊、低成本、高增益、同時具有自波束跟蹤能力的新型天線出現。
  8. Smart antenna has been widely researched in communication and signal processing, the adaptive beamforming algorithm is the key technique of smart antenna. it could adaptively steer the array directional pattern to form the main narrow beams with high gain in the direction of the users " signals while deeply nulling the interference signals. it is an effective way to realize the optimal receiving of the interesting signals

    智能天線技術是目前通信和信號處理等領域的研究熱點，自適應波束形成演算法的研究是智能天線的一個關鍵技術，它能夠自適應地控制天線陣方向圖在用戶信號方向產生高增益窄波束，在干擾信號方向產生較深的零陷，是實現用戶信號最佳接收的有效方法。
  9. Embed simply antenna free customer can select different antenna

    內置式簡易天線客戶也可自行配置高增益天線
  10. A patch antenna with air holes in the substrate has been designed. the finite - difference time - domain ( fdtd ) method together with the perfectly matched layer ( pml ) boundary treatment has been used to study the performance of the antenna. it is shown that the surface waves are significiently suppressed, the frequency bandwidth is improved, the sidelobe levels are reduced and consequently the gain in the forward direction is improved by 14 db ( about 4 db higher than the value reported previously )

    設計了一種基底鉆周期圓孔結構的電磁（光子）晶體貼片天線，用fdtd方法並結合pml吸收邊界條件對該天線進行了研究，結果表明本文所設計的基底鉆孔型電磁晶體貼片天線取得了多方面的性能改善，與普通天線相比，基底中的表面波受到很大抑制，天線的帶寬增加，遠場方向圖上天線的旁瓣和背瓣被明顯削弱，向前輻射的增益由原來的12db增加到26db ，增加了14db ，比文獻上報道的gonzalo等人的研究結果提高了4db 。
  11. A novel broadband and high - gain microstrip reflect array antenna with variable polarization

    一種新型寬頻帶高增益的變極化微帶反射陣天線
  12. The result shows that the solar radiation pressure moments play a mainly part. based on kalman filtering, three kinds of attitude determination algorithms were studied using the attitude sensor now available on the explorer : the first based on digital solar sensor ( dss ) and gyroscope when the star sensor is not available ; another based on dss, high - gain antenna ( hga ) and gyroscope when the explorer is in the earth - safe mode ; the third based on star sensor combined with gyroscope when the explorer is in the normal mode

    針對配置了典型測量敏感器的深空探測器，基於擴展kalman濾波給出了其姿態確定的方法:針對星敏感器不可用情形，給出了使用太陽敏感器和速率陀螺定姿的濾波器演算法;針對安全模式下的對地穩定定向情形，給出了太陽敏感器和高增益天線融合速率陀螺信息的定姿演算法;針對正常巡航模式給出星敏感器和速率陀螺聯合定姿演算法。
  13. The smart antenna, which is adapted in the wireless mobile communication system, in fact, forms an antenna with a high gain. thus communication in all directions can be proceeded, then base station antenna coverage, system capacity and service quality are improved, also inter - symbol interferes and multi - access interfere are reduced. the space division multiple access ( sdma ) is introduced, and users can be distinct from each other through their special location

    在無線移動通信系統中採用智能天線技術，實際上是通過數字信號處理，使天線陣為每個用戶自適應地進行波束賦形，相當于為每個用戶形成了一個可跟蹤它的高增益天線，從而即可以進行全方位通信，也可以用較小的發射功率覆蓋相同的范圍以及提高系統容量和業務質量、降低用戶間的碼間干擾和多址干擾。
  14. Simultaneously we append a high frequency amplifier in the high frequency sector, in order to recover the reduction of the gain in the new system

    同時，在改進后雷達的高頻部分增加高頻放大器，以抵消天線改進后引起的增益下降。
  15. The performance of the pbg antenna using the new pbg cover together with a pbg substrate is studied by the fdtd method together with the pml boundary treatment. the numerical results show that a more focused beam radiated in the broadside direction is achieved. the gain of the pbg patch antenna in the forward direction is improved by about 6 db. the radiation directivity is improved significantly and reaches 11. 5 db, which is 0. 4 db less than the maximum value that is allowed physically for this size of the antenna ( this difference is about 4. 1 db less than the difference achieved by thevenot et al.,

    用fdtd方法並結合pml吸收邊界條件，我們對加了這種新的覆層結構並且基底鉆孔的復合結構電磁（光子）晶體貼片天線的性能進行了研究，結果證明加了這種新的電磁晶體覆層結構以後，天線的波束收攏很多，並且向前輻射的增益大大提高，與普通天線相比，天線的e面和h面方向圖上向前輻射的增益均提高了約6db ，另外，該復合結構天線的方向性系數達到了11 . 5浙江大學博士學位論文db ，與該物理尺寸天線的方向性系數的理論極限值（ 11 . 9db ）相差0 . 4db ，該差值比thevenot等人設計的電磁晶體覆層天線的相應差值減少了約4 . 1db ，比qiu等人設計的電磁晶體天線的相應差值減少了約1
  16. The directional routing protocol ds _ dsr put forward by the author is the improvement of the current protocol dsr, complete routine discovery and maintenance by directional neighbor nodes routing table, source routing and directional steering. the research discovers the application of the directional antenna, compare the omnidirectional antenna can increases the networks " total throughput, obviously reduces the co _ channel interference ( cci ), multiple access interference ( mai ), enlarges the nodes " signal and interference to noise ratio ( sinr ), and because of the high gain of directional antenna can realize the communication with farther distance and less jump, end to end delay can decrease deeply, simultaneously, security of networks can be improved partially, the node energy also can be saved easily by power control

    本文提出的定向路由協議ds _ dsr是基於對現有協議dsr的改進下實現的，通過定向鄰節點路由表、定向源路由和定向搜索來完成路由發現與維護。研究發現，定向天線的應用，相比全向天線可明顯提高網路的總的吞吐量，減少通道干擾、多址干擾，提高信干噪比，且由於定向天線的高增益可實現較遠距離、較少跳數的通信，減少了路由發現時間，這樣大大減小了傳輸時延，網路的整體性能得到了不同程度的提高，同時部分地解決安全問題，通過功率控制還可較容易的實現節能的目的。
  17. Many technologies of electrically small antennas and wide band antennas are discussed in theory, simulation and experiment. and some novel electrically small or wide band antennas are proposed. the loaded monopole is analyzed in depth integrating the genetic algorithm ( ga ) with the method of moments ( mom ) in order to increase the gain and decrease the vswr of antennas used at hf / vhf band

    在本論文的研究過程中，通過合理利用各種現有的天線寬帶化和小型化的理論成果、有效的綜合各種技術措施，運用矩量法和遺傳優化演算法等數值方法，深入研究了加載單極子天線問題，旨在全面提高高頻/甚高頻頻段內的天線增益和降低電壓駐波比，以獲得較高增益的、基本滿足駐波要求的小型超寬帶天線。
  18. Energy distribution involves many radar ' s parameters, such as peak power of transmitter, maximum pulse width, antenna gain, rotating speed of antenna, beam width, covering range of elevation, maximum height and range and so on

    能量分配牽涉到雷達系統的各種重要參數如發射機峰值功率、最大發射脈寬、天線增益、天線轉速、波束寬度、仰角覆蓋范圍、最大高度覆蓋、最大作用距離等。
  19. The directivity coefficient of the phased array antenna has been generalized and discussed. according to the formulations of microstrip antenna design theory, planar and cylindrical microstrip patch cell has been analyzed. we can conclude that the cylindrical microstrip patch cell has the performance of high gain, low thickness, high resonant frequency, uniform directivity diagram, and easy fabrication on missile body, so it is a good choice

    本文根據微帶天線設計理論，分析了平面和柱面兩種微帶貼片單元，其中柱面微帶貼片單元增益高、厚度小、諧振頻率高、方向圖均勻，且較易加工製作在彈體上，適合在相控陣天線中做共形輻射單元。
  20. Antenna parameters studies are presented and practical design considerations for achieving high gain and wide bandwidth are given. in chapter 4, a novel pifa with high radiation efficiency is designed for a tri - band mobile handset application

    天線印刷線路板的尺寸等參數對天線諧振頻率和帶寬的影響在本章中詳細研究，一個詳細的實際設計例子也在本章中介紹，測試結果表明天線獲得了較高的增益和較寬的帶寬。
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