vswr 中文意思是什麼

vswr 解釋
電壓駐波比
  1. Frequency drifts due to : dc voltage, temperature, vswr

    頻率漂移跟直流電壓、溫度、駐波比有關。
  2. Impedance, reflection coefficient, return loss, and vswr test procedure measured in the time and frequency domain for electrical connectors, cable assemblies or interconnection systems

    電連接器電纜附件或互連系統在時間和頻率域中測量的阻抗反射系數回程損耗和vswr試驗程序
  3. 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。
  4. Voltage standing wave ratio vswr

    電壓駐波比
  5. Vswr oltage standing wave ratio

    電壓駐波比
  6. A 1 / 10 - scale model quasi - fractal rcl - loaded monopole antenna was fabricated and measured, which has a bandwidth ratio of about 10 : 1, with vswr less than 3. 0, calculated system gain greater than - 9. 4db and the efficiency above 14 %

    加入寬帶匹配網路后，對其10 : 1的縮比模型天線進行了測試，在全頻率段內駐波系數小於3 ，理論增益大於- 9 . 4db ，效率大於14 % 。
  7. 3. to keep smooth gain, good vswr, and fewer devices, a feed - back technology is adopted

    3 、使用反饋技術，不僅可以獲得平坦的增益和降低輸入輸出的駐波比vswr ，而且也可以使用較少的元器件。
  8. Vswr connectors for electronic equipment - tests and measurements - test 25g - impedance, reflection coefficient and voltage standing wave ratio

    電子設備連接器.試驗和測量.試驗25g .阻抗反射系數和電壓駐波比
  9. Vswr connectors for electronic equipment - tests and measurements - part 25 - 7 : test 25g - impedance, reflection coefficient and voltage standing wave ratio

    電子設備連接器.試驗和測量.第25 - 7部分:試驗25g :阻抗反射系數和電壓駐波比
  10. Loading the antennae with matching networks will not only decrease the vswr at the ports of the receivers, but also reduce the influence of the mutual coupling

    加載匹配網路不但能降低接收機埠的駐波比，還能有效地減弱天線之間互耦的影響，改善系統性能。
  11. The main parameters of mobile antenna, such as vswr, return loss etc., are introduced. furthermore, the radiation problems by sar are considered in the chapter

    論文第二章將考慮手機系統對天線的要求，介紹了天線的主要參數如vswr 、回波損耗和輻射效率。
  12. The impedance match must be extremely good because at the frequency that the antenna beam ~ vork on the broad - side position, the reflcctions from all the bends add in phase to produce a large input vswr. in addition, a poor design of thc bends leads to high - power breakdown

    慢波線中使用了大量的波導e面180彎頭，系統對其駐波特性提出極高的要求，文中用高頻模擬軟體（ hfss ）優化設計了波導e面180彎頭。
  13. 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
  14. For the 32 phase states, within the frequency band of 60mhz 10mhz, the insertion loss of the phase shifter is lower than 2. 3db, the imbalance of scope is lower than 0. 3db, the phase error is better than 3. 3 degree, the input / output vswr is lower than 1. 7. physical dimension is 40mmx30mmx20mm

    實測結果表明:中頻寬帶五位數字移相器在60mhz 10mhz頻率范圍內， 32個相位狀態的插入損耗都低於2 . 3db ，幅度不平衡小於0 . 3db ，相位誤差小於3 . 3度，輸入和輸出電壓駐波比都小於1 . 7 。
  15. Use eda software to simulate the optimization z sand z l in pa designation. 3. theoretically deep analysis is made which is about the method of lna design, analysis the affect of noise figure and input vswr to the system sensitivity and the contradiction between the two parameter

    3 .從理論上低噪放設計方法進行深入的研究，系統的分析低噪放的輸入駐波比和噪聲系數這兩項指標對接收機系統靈敏度的影響以及兩者之間的矛盾。
  16. And then lodge a design method of lna which can get low noise figure and low input vswr simultaneity. 4. introduced the method of yield analysis and optimize to the lna design, by this method, difficulty of debugging was reduced

    進而從理論上提出一種能較好的處理好兩者之間矛盾的低噪放設計方法，並運用到實際產品的研製過程中; 4 .將合格率分析和優化的方法引入到低噪聲放大器的設計中，大大的降低電路的調試難度，設計出有較高的一次通過率的產品。
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