slot frequency 中文意思是什麼

slot frequency 解釋
通道間插入頻率
  • slot : n 1 狹縫，窄孔；【機械工程】漕溝；自動售貨機投錢口。2 【航空】翼縫。3 〈美口〉（集體或系列中的）...
  • frequency : n. 1. 屢次，頻仍，頻繁。2. （脈搏等的）次數，出現率；頻度；【物理學】頻率，周率。
  1. Frequency slot interchange fsi

    頻隙交換
  2. Tdma allocates each user a different time slot on a given frequency

    Tdma在給定頻率為每個用戶分配不同的時隙。
  3. Compare to the normal rectangular waveguide, ridge waveguide has the character of broader bandwidth, smaller dimension, lower equivalent characteristic impedance, etc. because of these merits, it is used more and more widely, such as broadband ridge waveguide filter, broadband direct coupler, diplexer, frequency converter, phase shifter, ridge waveguide slot antenna array, and so on

    與普通矩形波導相比，脊波導具有工作頻帶寬、尺寸小、等效特性阻抗低等特點。由於脊波導本身的特點，使其得到了越來越多的應用，例如寬帶脊波導濾波器、寬帶定向耦合器、雙工器、變頻器、移相器、脊波導縫隙天線陣等等。
  4. Based on the idea of improving the frequency characteristic of the two parameters above, a novel method of improving the bandwidth of the slot array antenna is presented in this paper, which uses a ridged waveguide instead of a rectangular waveguide as the radiating waveguide

    本文以改善這兩個參數的頻率特性為出發點，提出了一種展寬波導裂縫天線帶寬的新方法，即用脊波導代替矩形波導作為輻射波導。
  5. Influence of slot width on transmission properties of frequency selective surfaces

    縫隙寬度對頻率選擇表面透波特性的影響
  6. The conformal microstrip antenna with some unique character has been applied in many fields, especialy on speedy objects. in this paper, an efficient fdtd algorithm is introduced to analyse the microstrip antenna. firstly, the fdtd formula in descartes coordinate system and in cylindrical coordinate system are obtained from the time _ dependent maxwell equations using the yee algorithm in a calculating region where the dielectric parameters are independent of time and space. the choice of the space discretization units and the time discretization interval are discussed which are decided by the accuracy and stability respectively. the shape and setup of the excitation source are discussed too. the excitation source is chosen to be gaussian pulse in shape. secondly, the mur ' s first - order and second - order boundary condition are deduced in cylindrical coordinate system. the methods of transforming radiation fields from near zone to far zone in the frequency domain and in the time domain are presented when fdtd is applied to analyse the characteristics of far zone. finally, three kinds of microstrip antennas are analysed. they are a slot antenna that lies on a plane ground of a microstrip, a slot antenna that lies on a cylindrical ground of a microstrip and a microstrip line _ fed aperture coupled stacked rectangular patch antenna in cylindrical coordinate system

    本文從麥克斯韋旋度方程出發，建立了笛卡兒坐標下無源空間中均勻無耗媒質的fdtd基本方程和圓柱坐標下無源空間中均勻無耗媒質的fdtd基本方程，詳細討論了fdtd法計算中時間步長和空間步長的選取原則以及激勵源的類型和設置；推導了mur一階和二階邊界條件在圓柱坐標下的差分格式；給出了在用fdtd法計算天線的遠場輻射特性時必需採用的頻域和時域近場遠場變換技術；最後用fdtd法計算了平面微帶縫隙天線、柱面共形微帶縫隙天線和柱面共形微帶層疊天線的輸入阻抗和遠區輻射場，並分析了天線的一些參數的變化對天線輸入阻抗的影響，得出了一些有用的結論。
  7. Generally speaking, the increase of the slot length and width can make the resonance frequency low, which is not the longer the better, however

    一般來說，縫隙長、寬的增加可使諧振頻率點降低，而較大的縫寬也降低了貼片的有效輻射面積，使增益降低，所以需要折衷協調。
  8. It is found that there is a competition among the modes such as tm _ ( 01 ), tm _ ( 11 ) and tm _ ( 21 ) because of their similar work frequency in the experiment of rbwo with a coaxial structure, then tm _ ( 01 ) mode couldn ’ t work steadily. after shaping rectangular slot in the inner - conductor, the space between modes is enlarged, tm _ ( 01 ) mode would work steadily

    在同軸返波管的實驗中發現:模式tm _ （ 01 ） ， tm _ （ 11 ）以及tm _ （ 21 ）的工作頻率十分接近，存在模式競爭問題，使得tm _ （ 01 ）不能成為穩定的工作模式，但在同軸返波管內導體加矩形開槽后，發現模式之間的間隔增大，從而使tm _ （ 01 ）成為穩定的工作模式。
  9. The low - frequency slot harmonic modulation is used to weaken the end effect or decrease the wave of the thrust, and the many projects are designed or the better project is selected

    採用齒諧波低頻調制的設計方法，來削弱直線電機固有的端部效應，使推力的波動減小，並進行了多方案計算，得出比較好的設計方案。
  10. The more poles mode, the unequal pole width mode ; the low - frequency slot harmonic modulation mode and the mode of changing end magnetic conductance are presented, and these designing method can efficiently weaken the end effect and decrease the wave of the thrust

    提出的採用多極電機方式；初級與次級極距不等的方式；齒諧波低頻調制方式和改變電機兩端部磁導的方式等電機的設計原則和方法，都可有效地削弱端部效應，減小推力的波動。
  11. 2. while the frequency of the incident microwave is getting closer to the frequency at which the resonant effect appears, the electric field in the middle of the slot is group delayed

    （ 2 ）當入射波載頻接近共振頻率時，孔縫中心耦合的電場強度存在群時延現象，群時延現象與共振增強效應同步發生。
  12. Numerical results are given to demonstrate the effects of several factors including the number of basis functions, the thickness of waveguide, the terminations of waveguide and different frequency on the radar cross section ( rcs ) of a slot array

    物理光學法用於有限電尺寸導體平板散射的分析。文中給出了縫隙陣列在不同頻率、基函數個數、波導厚度、終端負載等情況下的計算結果。
  13. These functions are put in the 16th message track. in order to overcome disturbance from the same frequency, there must be a control protocol observed by all. synchronization of slot time adopts the time information of gps, so that the ship and the base do not send and receive messages simultaneously, and each function has its own share of time

    我們把這些業務均放到16通道，為了克服同頻干擾，就需要設計一個共同遵守的分時通信協議，時隙的同步採用gps的定時來進行，使船臺和基站不同時發送或接收，將各項業務在時間上區分開。
  14. As far as the wide slot antenna is concerned, a broad s11 - 10db frequency bandwidth of 158 % and an operating frequency band of 1. 9 ~ 16. 25 ghz are produced by applying this method to it

    對寬槽天線而言，應用這種方法得到了阻抗帶寬為158 %的超寬帶寬槽天線，工作頻率為1 . 9 ~ 16 . 25ghz 。
  15. The frequency characteristic of the admittance of radiating slot and the waveguide wavelength of radiating waveguide is the main factor that influences the bandwidth of the slot array antenna

    摘要輻射縫隙導納及波導導內波長的頻率特性，是影響裂縫天線帶寬的主要因素。
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