broad band antenna 中文意思是什麼

broad band antenna 解釋
寬頻帶天線
  • broad : adj 1 廣，廣大；廣袤，寬闊的，遼闊的；廣泛的，普遍的；【紡織；印染】寬幅的。2 氣量大的，寬厚的，...
  • band : n 1 帶，繩；帶形物；箍；箍條；嵌條；鑲邊；鋸條； 〈pl 〉 （法官等的）寬領帶。2 束縛，羈絆；義務；...
  • antenna : n. （pl. -nae , antennas）1. 【動物；動物學】觸角。2. 【無線電】天線〈英國常用 aerial〉。
  1. Study on broad - band microstrip patch antenna

    寬頻帶微帶貼片天線研究
  2. The comparison between the results of calculation and measurement shows that the two results are in good agreement for the broad band antenna in the l band and the waveguide - coax converter of bj48 type used as antenna in the c band, with a difference of less than 0. 7db, and that the two results also agrees well in the x band for the waveguide - coax converter of bj100 type used as antenna, with an error close to 1db only at few points in the given frequency range

    比對結果表明: l波段（加脊天線） 、 c波段（ bj48型波導同軸轉換作為接收喇叭）的模擬結果與實測結果符合得較好，誤差小於0 . 7db ;在帶內， x波段（ bj100型波導同軸轉換作為接收喇叭）的模擬結果與實測結果比較一致，只在個別頻率點處誤差近1db 。
  3. The work presented in this paper is carrying out to the theory research of dbf. the work includes : research of dbf algorithms, dbf antenna system composition and realization. the application of dbf algorithms used in high frequency ground wave radar for near ocean inspection and ocean situation remote sensor is also presented. at last, we give a effective scheme to implement broad - band constant beamwidth digital beam - former

    本文的主要工作是圍繞數字波束形成技術的理論研究，內容包括：數字波束形成演算法的研究，數字波束形成天線的系統構成和實現，以及將數字波束形成演算法應用於高頻地波雷達近海監測和海態遙感，最後給出了一種寬帶恆定束寬數字波束形成器的設計方案。
  4. 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 。
  5. A " fractal " is a recursively generated structure having a fractional dimension and self - similarity property. the concept of a " fractal " has been applied to antenna design in order to reduce the size of antenna and obtain multi - band frequency operation. fractal antennas have broad application prospect in military and civil application

    分形是通過迭代產生的具有自相似性的分數維結構，分形的概念可用於天線設計以實現天線的尺寸減縮與多頻特性，這在軍用和民用方面有著廣泛應用前景。
  6. His idea is based on the fact that the pivot of the soft wireless structure is to put the broad band a / d and d / a conversion near to antenna by all means, and to define the functions of the transmitter - receiver as many as possible in the forms of software ( namely realized by software ). the technology of background signal simulator puts the focus on the methods used to realize the software, namely to exploit the functions of the hardware ( for example, dsp fpga or asic ) through the idea of software design, and to produce ( realize ) wireless signals by high speed lsi and software programming

    1992年5月的全美電信系統年會上， mitre公司的資深科學家joemitola首次給出了軟體無線電的定義，他認為：軟體無線電的組成架構的中心點是將寬帶模?數（ a d ）和數?模（ d a ）轉換器盡可能地靠近天線，將盡可能多的電臺功能以軟體的形式定義（即用軟體來實現） 。背景信號模擬器所採用的技術集中體現在軟體無線電技術，即用軟體化設計去開發硬體（如dsp 、 fpga 、 asic ）功能，採用高速大規模數字集成電路、軟體編程的方法產生（實現）各種無線電信號。
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