非輻射天線 的英文怎麼說
中文拼音 [fēifúshètiānxiàn]
非輻射天線
英文
non radiating antenna- 非 : Ⅰ名詞1 (錯誤) mistake; wrong; errors 2 (指非洲) short for africa 3 (姓氏) a surname Ⅱ動詞1 ...
- 輻 : 名詞(車輪中車轂和輪圈的連接物) spoke
- 射 : Ⅰ動詞1 (用推力或彈力送出) shoot; fire 2 (液體受到壓力迅速擠出) discharge in a jet 3 (放出) ...
- 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...
- 輻射 : radiation; exposure; radio; beaming
-
After the discussion of the numerical simulation method based on the fdtd method and the pml technique, the motions of the charges and the electrical field lines were first employed to describe the radiation procedures of the pulse electromagnetic waves. then the causes of how the charges are accelerated and how the motion status of the charges are maintained were further studied from the angle of interaction of charge and field. after these analyses, it was pointed out that the pulse radiation is due to the suddenly occurred time - varying electrical field ( displacement current ) in the open space. this view was further evidenced by two examples : one is the partly resistance loaded antenna, the other is the partly curved antenna. the radiation procedures of the pulse electromagnetic waves of many different situations were simulated throughout this paper with the contours and waveforms of electric field given. these figures are very helpful to the understanding of the radiation mechanism of the pulse electromagnetic waves
在討論了基於時域有限差分法和完全匹配層技術的數值模擬方法之後,首先從運動電荷和電力線的角度直觀地描述了脈沖電磁波的輻射過程,然後進一步從場與電荷相互作用的角度分析了天線上電荷是如何被加速以及如何維持其運動狀態的,指出了開放空間中突然出現的時變電場(位移電流)是脈沖電磁波輻射的根本原因.文中還對局部電阻加載的天線和局部彎曲的天線進行了研究,以進一步說明上述觀點.對多種情況下的脈沖輻射過程進行了數值模擬,並給出了電場的等高線和空間波形圖,這些圖形對理解脈沖電磁波的輻射機理非常有益First, this paper introduces the difference of all - power radiometer and dicke radiometer sensitivity, and gives normal calibration equation and periodic calibration equation of antenna temperature, and analyses calibration error due to square - law detector illinearity
本文在總結前人研究工作的基礎上,首先比較了全功率輻射計和迪克型輻射計的靈敏度,討論了輻射計天線溫度的反演和周期定標技術,分析了檢波器非線性特性對輻射計定標結果的影響。As the most important advantage of rfid system is non - contact identification, thus the key component is the antenna, which is performed as emit or receive device to realize data communication between the tag and the reader
由於rfid系統的最大特點是非接觸識別, rfid標簽與閱讀器實現數據通信需要利用天線作為輻射或接收無線電波的裝置,因此在rfid系統中天線起著至關重要的作用。
分享友人