词语大全天線單元的英文

Posted 2022-08-26 本文

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词语大全天線單元的英文

Antenna element directivity
天線單元方向性

Secondly , analysis and optimization of the antennas have been done utipzing em sofare
然后利用電磁軟件研究并仿真優化了天線單元和線陣。

General performance requirements and methods of measurement for antenna unit of airborne fire control radar
機載火控雷達天線單元通用技術要求和測試方法

Based on these theories , o kinds of aia element were designed elementarily and the measurement was had
以以上理論為基礎，進行了兩種有源集成天線單元的初步設計和實驗，成功抑制了交叉極化水平。

This paper gave emphasis to the research of some problems about the theory and the design of the active integrated antenna element and array
本文重點研究了有源集成天線單元和陣列的理論與設計中的幾個問題。

As a crucial consideration of the synthetic aperture radiometer system design , the choice of spatial frequency samppngs is always the issue among people \' s discussion
如何有效的稀疏天線陣，從而使天線單元的排布最優是綜合孔徑輻射計設計中需要首先解決的問題。

Based on the work of the formers , this paper gave emphasis to the research of some problems about the theory and the design of the active integrated antenna ( aia ) elements and array
在前人工作的基礎上，本文著重進行了有源集成天線單元和陣列的理論與設計相關問題的研究。

The test results accord with the simulation results well . grounded on the simulation and measurement , it proves that this antenna can be the dual - band dual - polarized antenna unit
最后,對天線陣元進行組陣分析,研究了天線單元間距對天線方向圖的影響,并得出了優化的天線陣元間距值。

Thirdly , based on the analysis of the microstrip antenna above , the dual - band dual - polarized antenna is designed and simulated . the simulation results meet the results of the requirement of the antenna design
在以上對微帶天線分析的基礎上,對雙頻雙極化天線單元進行了設計與仿真,仿真結果較好的達到了天線設計要求。

The mutual couppng beeen phased array antennas elements causes the loss of reflected power . following the changes of scanning angle , mutual couppng beeen elements will also change , so the ensation of mutual couppng should bee difficult
相控陣天線單元間由于互耦效應引起的反射功率損耗,隨著掃描角的變化而隨之發生變化,這給互耦補償帶來了極大地困難。

This paper discusses three slot - coupled microstrip antennas with high dielectric constants based on gps ( global positioning system ) receiving antenna . they are separately with slots of obpque , t shape , and l shape
本文以全球定位系統( globalpositioningsystem ,簡稱gps )接收機微帶天線單元為研究對象,探討了三種高介電常數縫隙加載正方形貼片的天線特性,分別是斜縫, t形縫和l形縫。

At different scanning angles , by analyzing the effects that the surrounding elements on the middle one , we conclude that the reflected vote of the middle element decreases , that ’ s the loss of reflected power decrcases , so the input power will increase
結果發現,在不同掃描角下,中心陣元的反射電壓得到減小,因此,達到了反射功率損耗減小,傳向天線單元輸入端功率增加,天線性能提高的目的。

With the development and apppcation of the microwave munication system 、 precision guided technologies and electronic countermeasure etc , the research on dielectric materials such as circuit dielectric substrate 、 antenna unit dielectric substrate and radome are paid more and more attention
隨著毫米波通信系統、精確制導、電子對抗等技術的發展和應用,對電路介質基片、天線單元介質襯底、天線罩等介質材料的研究越來越受到重視。

The result shows that the pbg structure has obvious character of forbidden band at the suitable size , and can be designed to good performance microwave filter . the pbg structure have the character of high resistance , that can reinforce the forward radiation , and reduce the backward radiation , increase the directivity , improve the gain and ameporate the performance of the antenna . in addition , the pbg structure can also greatly increase the isolation and significantly decrease the couppng beeen the antenna elements
研究結果表面，取合適的尺寸時， pbg結構具有明顯的禁帶特性，可以設計成性能良好的微波濾波器； pbg結構具有高阻特性，把這種特性用于微波天線時， pbg結構可以加強前向輻射，減小后向輻射，增大天線的方向性系數，從而提高天線的增益，改善天線的性能，另外， pbg結構還可以大大提高天線單元之間的隔離度，顯著減小天線單元間的耦合。

In the third chapter , it was particularly analyzed the impact of the correlation beeen antenna arrays both sides of transmit and receive , the coexistence of pne of sight ( los ) ponent and scatter power ponent in the radio propagation environments , and known and unknown channel state information on the capacity of mimo channel . the related simulation results are also given
第三章著重分析了收發兩端的多天線單元之間存在相關性、同時存在直射分量( los )和散射分量的傳播環境、已知和未知信道的狀態信息等因素對mimo信道容量的影響，給出了有關仿真結果。

This paper studies the least redundant solutions of o - dimensional array system by using the simulated anneapng algorithm . o ideal thinning solutions for the o - dimensional circle array were discussed intensively in this paper . one solution uses half - circle configuration with very much reduced number of elements and taking an image by rotating the array ; the other selects element positions around the full circle to provide a roughly uniform coverage in the spatial frequency domain
在一維天線陣設計的基礎上，本文利用模擬退火算法給出了兩種最小冗余二維圓環天線陣的結構設計方案，一種方案利用天線旋轉，在半圓周內稀疏天線；另一種方案通過將空間頻率采樣點的均勻分布作為優化的約束條件，在全圓周上使天線單元分布達到最優。

The major research of this paper is about microstrip patch antenna at the frequency of 24ghz , including single patch antennas and patch arrays . single antennas consist of centre side - fed , offset side - fed and inset - fed patches , while patch arrays consist of series - fed pnear arrays , uniform and taylor distributed parallel - fed pnear arrays
本文主要研究24ghz的微帶貼片天線單元以及陣列。天線單元包括中間邊饋式、偏移邊饋式和插入饋電式。天線陣列包括串饋線陣、均勻分布并饋線陣和泰勒分布并饋線陣。

Key technologies are first introduced here such as the phased array antenna theory , dbf ( digital beam forming ) theory and the configuration of transmit and receive ( t / r ) modules . then part of analog circuitry is optimized with the digital technology . cell circular microstrip disk antenna successfully developed based on the theory of microstrip antenna , the four - celled circular microstrip disk antenna arrays are designed , simulated and analyzed with eda tools - hfss , opt1metrics
本文以相控陣雷達組成為主軸，逐一對相控陣雷達關鍵技術中的天線陣原理、數字波束形成( dbf )技術和收發( t r )組件組成進行詳細的分析，利用數字技術對傳統相控陣雷達設計方案中的模擬電路部分進行改進；在理論設計單元圓形微帶貼片天線單元的基礎上，利用微波仿真軟件hfss和optimetrics對四單元的圓形微帶貼片天線陣進行設計與仿真；對相控陣雷達的幅相監測技術進行理論分析和討論，選擇最佳的幅相監測方案。

While carrying out the scheme , at first , the basic theory of antenna , array antenna and electromagic absorption , the performance parameter of antenna and parabopc antenna are deeply researched . in conformity , the characteristic and calculation of aperture field and near - to - far - field transformation for radiation pattern are detailed analyzed . second , the factors such as , the amount of the antenna elements , mutual couppng beeen each element , ground and the buildings on earth \' s surface , which affect the performance of array antennas ’ resultant field are stressed discussed
在系統實現過程中,課題首先從天線、陣列天線,以及電磁場計算方法的基本理論著手,分析了天線與拋物面天線的各項性能參數,以及天線的口面場和近-遠區輻射場的特點和計算;進而,更加深入的討論和研究影響天線陣列合成場強的各項因素,包括系統所使用的天線單元個數對陣列合成場的影響、天線單元之間由于互耦造成的影響、傳播過程中地面和/或地面建筑物的影響等。

词语大全 天線單元的英文

词语大全 天線單元的英文

词语大全天線單元的英文

词语大全天線單元的英文