振子天線 的英文怎麼說
中文拼音 [zhènzitiānxiàn]
振子天線
英文
element antenna-
It has the good qualities of both tem horn antenna and dipole antenna, less dimensions construction, good direction and higher efficiency. its impedance and radiation are analyzed. good agreements are obtained from experiment and calculation
這種平面喇叭天線採用了新型的平衡饋電方式,結構簡單,性能良好,同時結合了tem喇叭和振子天線的優點,結構維數低,具有較強的方向性、較高的效率,在uwbsar軌道系統實驗中取得了比較理想的結果。Resonant characteristics of a trapezoid meander line monopole antenna
梯形彎折線單極子天線的諧振特性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。The effect of cylindrical dielectric capsulation on input and output performance of 2. 5ghz half - wavelength dipole is investigated
本文對2 . 5ghz半波對稱振子天線的介質封裝特性進行了研究。The antenna gain, directivity and reflection coefficient are calculated via finite element method in hfss. spline interpolation and polynomial curve fitting are applied to construct diagrams illustrating the capsulation characteristics. some general conclusions of interest are obtained
探討了各個封裝參數對輸入端反射系數、方向性系數、效率和增益等性能指標的影響,得到一些規律性結論,為射頻振子天線的封裝應用提供了參考性的建議,並指出了進一步研究的方向。Coaxial dipole aerial
同軸振子天線The research of a novel wideband monopole antenna
寬帶振子天線的研究In this thesis, our work is focused on analyzing the effects of mutual coupling between elements of the thin dipole antenna array. the effects of mutual coupling on the antennas pattern synthesis and the amplitude - phase consistency of the input impedance of the uniformly - space liner array are presented. a new method that used the mutual coupling to synthesize the pattern is been given
本文就是以此為出發點,將半波長細線對稱振子線天線陣作為研究對象,以分析天線陣列的互耦影響為核心,討論互耦對幾種方向圖綜合技術的影響,並從兩種不同的角度提出了對陣元互耦的校正方法。Bringing into play the communication market resources in hangzhou bay, the park devotes itself to the formation of a “ mobile valley ”, which means a unique zhejiang - flavored economic pattern : forming a complete telecommunication industry chain from software and operation development of key parts, such as ic chip, rf modules, base band, display, high capacity battery, to related components like cell phone housing, keypad, antenna, vibration motor, mould, pcb ( circuit board ), photoelectricity device, electronic device, connectors and system and software development, and operation service development
園區依託杭州灣通信市場資源,致力打造「移動谷」 ,創造中國浙江經濟特有的專業版塊模式:從集成電路晶元、 rf組件、基帶、顯示器、高能電池等核心器件到接手機外殼和按鍵、天線、振動馬達、模具、 pcb (電路板) 、光電器件、電子器件、連接件等相關組件及系統和軟體開發、運營服務開發,形成完整的通信產業鏈。Rfid antennas we research operate at 915mhz, which belong to vhf, therefore microstrip patch antenna is adopted as base station antenna and various balanced dipole antennas are employed as tag antennas. then, a brief introduction is given on the radiating principles of the microstrip antenna
由於本課題所研究的rfid天線主要工作於915mhz ,屬于甚高頻波段,因而基站天線主要採用微帶貼片型,標簽天線主要採用各種對稱振子型天線。Making use of the propagation property of the electromagnetic wave, the authors made a further discussion on the directional characteristics of the radiation electromagnetic waves from elements antenna, symmetric whip and antenna array, and analysed the effects of various factors on the directional characteristics
摘要利用電磁波的傳播特點,對元天線、對稱振子及其天線陣輻射電磁波的方向性做進一步的探討,並分析各因素對其輻射方向性的影響。Abstract : making use of the propagation property of the electomagnetic wave, the authors made a further discussion on the directional characteristics of the radiation elecromagnetic waves from elements antenna, symmetric whip and antenna array, and analysed the effects of various factors on the directional characteristics
文摘:利用電磁波的傳播特點,對元天線、對稱振子及其天線陣輻射電磁波的方向性做進一步的探討,並分析各因素對其輻射方向性的影響。Finally, we put forward a method to compensate the amplitude and phase of the input. mom is an effective method to analysis the thin dipole
論文的主要工作:矩量法是一種分析細線對稱振子天線準確而有效的方法。This thesis presents the theoretical analysis about the design of the tunable antennas with multilayered structure theory and microstrip antenna ' s analytical methods. and it improves three typical kinds of antennas, and uses the voltage controlled ferroelectric materials. we analyze the tuning features of the antenna by simulation under the condition of different permittivity of the ferroelectric materials, and discuss the feasibility of improvement from microstrip antenna to tunable antenna
本文結合多層介質理論及微帶天線的分析方法對可調諧天線進行理論分析,並對矩形貼片天線、圓形貼片天線、微帶振子天線三種典型的微帶天線結構進行改進,引入壓控鐵電薄膜材料,模擬分析在改變鐵電薄膜介電常數條件下天線的調諧特性,討論微帶天線改進為可調諧天線的可行性。Based on the previous theory, the fdtd method is used to analyze practical antennas, which include dipole antenna, microstrip antenna, log - periodic antenna and broadband resistance loaded monopoles. the particular problems that occur in the calculating of vary type antennas are discussed. the cross - section field of microstrip line and two - conductor line are analyzed, and the effect on the numerical result arising from the incident cross - section mesh size is discussed
在前面理論的基礎上,將fdtd用於振子天線、微帶天線、對數周期天線、電阻加載振子天線等各種天線的計算中,對各種不同類型天線計算中所遇到的特殊問題進行了詳細的討論,並分析各種開放場傳輸線如微帶線、平行雙線等橫向場分佈,討論了入射網格橫向截斷區域的大小對計算結果的影響。Antennas are feed by 50ohm coaxial cable and feed networks are unnecessary. and then, tag antennas are analyzed and designed, which include plate balanced dipole antenna, triangle balanced dipole antenna and inductively coupled feed meander - line antenna. theory analysis and simulations are given and optimal results are achieved
然後,對標簽天線進行了分析與設計,分別對片狀對稱振子天線、三角形對稱振子天線、感應耦合饋電折疊線天線等天線形式進行了研究,給出理論分析和模擬計算,得到滿足設計要求的各種形式的標簽天線。The radiation patterns of 4 - elements and 6 - elements circular reflection arrays in different distances between the active element and the passive element, and different length of the passive element are calculated, which shows that the additional passive elements can improve the pattern of the circular array, and decrease the differences between beams, and produce several equal wavebeams
首次提出了一種新型的智能天線陣列結構,即圓環反射陣列,並就四、六元圓環反射陣列的情況分別對標準反射陣列和非標準反射陣列進行了詳細的分析研究,計算了不同間距、不同反射振子長度的方向圖。In order to overcome the shortcomings of the monopole antennas, a methods of quasi - fractal is used, which decrease the resonant frequency
為此,對hf頻段的單極子天線進行準分形,有效地降低了天線的諧振頻率。In this paper, resonant characteristics of the meander - line dipole antenna depended on times of meanders, the height of meanders and the angle of meanders are analyzed
摘要本文研究了由矩形彎折線構成的偶極子天線的諧振特性,分析了彎折線偶極子天線的彎折次數、矩形彎折的高度以及彎折角度等參數對天線諧振特性的影響。It is demonstrated that changing parameters of the dipole antenna is an effective method to adjust its resonant characteristics ; the good reduced size can be achieved by properly altering its parameters ; and the meander - line dipole antenna are suitable for the application as rfid tag antenna
結果表明,彎折線偶極子天線的參數改變對天線諧振特性有較強的調節作用,適當的改變天線的參數可以獲得較好的天線尺寸縮減特性,適合rfid標簽天線的應用。分享友人