相移天線陣 的英文怎麼說
中文拼音 [xiāngyítiānxiànzhèn]
相移天線陣
英文
phased array- 相 : 相Ⅰ名詞1 (相貌; 外貌) looks; appearance 2 (坐、立等的姿態) bearing; posture 3 [物理學] (相位...
- 移 : Ⅰ動詞1. (移動) move; remove; shift 2. (改變; 變動) change; alter Ⅱ名詞(姓氏) a surname
- 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...
- 陣 : Ⅰ名詞1 (作戰隊伍的行列或組合方式) battle array [formation]: 布陣 deploy the troops in battle fo...
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Every phased - array rader needs thousands of phase shifters, which control the phase of radiator elements in the antenna aperture surface to scan beams fast
每部相控陣雷達需要上千個移相器,才能控制天線孔徑面上各輻射單元的相位變化進而實現快速掃描。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。In such devices, it is desirable to have a high dielectric tunability in a certain electric field range, where tunability is defined as the variation of dielectric constant with respect to the applied voltage
自上世紀50年代以來,用電控的方式進行波束掃描的方法得到了迅速發展,從而使相控陣天線及其基本元件移相器的研究獲得了廣泛的重視。The key for phased array antennas with good functions is the use of controllable phase shifters. however, phase quantization errors affect the accuracy of phased array antenna beam pointing badly, which is mainly researched here
其中可控數字移相器的使用,是相控陣天線優越性能實現的關鍵,但由此引入的相位量化誤差,嚴重影響了相控陣天線的波束指向精度。However, the instantaneous bandwidth of signals is restricted for general phased array because of its transition time and aperture effect
但是,基於移相器的普通相控陣天線在進行寬帶寬角掃描時,由於渡越時間和孔徑效應的影響,使信號的瞬時帶寬受限。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。With compensation of signal ’ s time delay from different radiating element by phase shifters, phased - array antenna can control array beam easily. because there are no mechanical devices for rotating beam, the phased - array antenna system can scan everywhere in beam covered areas in millisecand by stepping the phase shifters. it improves the tracking velocity of antenna towards the object, and becomes the development trends of weapon system antennas
相控陣天線利用移相器補償信號到達輻射單元時間的差異,從而控制波束方向;天線沒有機械旋轉問題,只需改變移相器的設定值,波束便可以在毫秒級內掃描其覆蓋空域內的任何地方,提高了天線對目標的跟蹤速度,是目前武器系統天線的發展方向。In the purpose of enhance the circular polarization, the sub - array have used a phase transfer circuit which made each patch have 90deg phase difference in turn. matching branches are added to the full array to enhance the bandwidth of the antenna
在4單元天線子陣的設計過程中採用了移相電路,使4單元間的相位依次相差90 ,展寬了天線的圓極化軸比帶寬。According to the reciprocal characteristic of dual - mcde reciprocal ferrite phase shifters, the antenna only requires to provide the sa : lle beams of operation between the trtinsmit and receive beams. in addition, 1he phased shifter can operate in various polarizations such as linear polarization or circular polarization, which is adiipted to the development of modern ra ( 1ar technologies
對電掃描相控陣天線來說,雙模互易式鐵氧體移相器的互易特性可使收、發在同一特定波束位置上工作;此外,雙模互易鐵氧體移相器可以在線極化、圓極化等多種極化方式下工作,適應了現代雷達技術的發展。The previous discussion addressed the theory required to compute the relative phase shift between adjacent radiating elements in order to position the beam of an array - type antenna to a specific angle off of the antenna boresight axis
前面的討論中給出了計算使陣列天線的波束相對天線視軸線偏移一個給定角度所需的相鄰單元間相對相移的理論。The ferroelectric materials for their excellent dielectric, piezoelectric, ferroelectric, pyroelectric, electro - opticial, phonon - optic and nonlinear polarization properties have been widely applied in many fields especially in microwave tunable devices, such as phase shifter in phased array antenna, resonantor and filter etc. as far as microwave tunable dielectric materials, barium strontium titanate ( bst ) and its doped series have been investigated intensively, which have about 50 % tunability
鐵電材料具有優良的介電、壓電、鐵電、熱釋電、電光、聲光及非線性極化等特性,在多種領域有著廣泛的用途。利用其非線性極化特性能制備微波可調元器件,如相控陣天線上的移相器,諧振器,濾波器等。Abstract : the single toroidal non - reciprocal ferrite phase shifter that isthe key components of a phase array antenna is studied to develop the phase array antenna for autotracking synchronous communication satellite
文摘:為了研製自動跟蹤同步通信衛星平板相控天線陣系統,對相控陣天線中的關鍵元件單環非互易鐵氧體移相器進行了研究。Performance analysis of phase shifter error of adaptive array antenna for satellite ground - level station
自適應陣列天線移相器的誤差對衛星地面站性能影響分析分享友人