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ground plane (透視畫中的)地平面。

ground plate

A patch antenna with etched holes on the ground plane is also studied . the performance of the antenna at the resonant frequency is analyzed by using the fdtd method together with the pml boundary treatment . the results show that the surface waves are suppressed greatly , the bandwidth is improved and a 1 odb reduction on the sidelobe level is achieved at the 110 and 260 directions in the e plane 全面地研究了地面腐蝕周期圓孔結構的電磁晶體貼片天線在基波頻率處的性能,用fdtd方法并結合pml邊界處理技術對該天線所取得的研究結果顯示,本文設計的地面腐蝕型電磁晶體結構抑制了貼片天線中的表面波,增加了天線的帶寬,并有效地削弱了旁瓣,使天線的e面方向圖上110和260方向的兩個旁瓣被削弱了10db 。

In view of smaller and thinner samples required in grinding slice for microprobe analysis , three steps are used : establishing a thinner grinding plane on the center of homogenized crystalloid melt inclusion sample , grinding the surrounding parts of the sample to the thickness as the center , polishing the grinded sample slice in order to expose the melt inclusion to the sample surface 摘要針對磨制樣品十分細小和較薄等特點,采用如下三個步驟磨制:以加熱過的細小樣品為中心創建一磨制平面;將樣品周圍的巖石薄塊磨至接近細小樣品的相同厚度;在拋光機上拋光,使包裹體完全露出表現。

In the applied part , kernel method is used to improve the method of classification with one class training data . the improved method is combined with ground plane transformation method , so that information from monocular vision and stero vision can be fused effectively . based on this , a demo system of obstacle detecting in outdoor scenes is developed 在實踐應用部分,本文利用核函數方法,改造了現有的單類判別方法,并結合雙目視覺技術中的重投影方法,實現了單、雙目信息的有效融合,研制了一個自然場景下的障礙檢測實驗演示系統。

It was satisfied for performance testing of high - speed a / d circuit in the project assess the factors of reducing a high speed a / d circuit performance were found out , such as harmonic distorted in front analog circuit , . sample clock shaking , analog power and the noise in ground plane etc 并在試驗測試的基礎上找出了影響高速模數轉換電路轉換性能的幾個主要的因素,即:前端運放電路諧波失真、采樣時鐘抖動、模數電源及共地噪聲串擾等。

These results are as follows . 1 . the asymmetric cpw with conductor backing , the asymmetric cpw with wholly shielding and the asymmetric cpw with both finite substrate thickness and finite lateral ground planes are put forward , and the analyzing methods of these cpw ' s are presented 本論文給出了分析該模型的保角變換方法,歸納了該模型所能演變出的共面波導種類,推導出了該模型特性參數面向cad的封閉解析表達式。

In this case components should be mounted on a board having a continuous copper ground plane ( ideally on both sides of the board , though while convenient this is not essential ) , with ground connections made to the plane and short point to point wiring made above and below it 用于搭試的電路板最好有連續的地層(如果雙面都有地層就更理想了,雖然調試起來會不太方便) ,這樣接地的導線和層間連接線都會比較短。

Good experimental results have been obtained and agree well with the simulation results . a new patch antenna with patch rings is studied . a patch antenna with a corrugated soft surface ground plane is studied firstly for comparison 繼理論研究之后,我們還對加了這種新的覆層結構的復合結構電磁(光子)晶體天線進行了實驗研究,并取得了較好的實驗結果。

The technique is employed to analyze the electromagnetic scattering characteristics of anisotropic dielectric - filled apertures in grounded plane . the obtained results show that the proposed technique is accurate and efficient 本文應用矢量有限元?邊界積分法分析了無窮大接地平面上的各向異性介質填充縫隙的電磁散射特性,數值結果表明這種方法是有效的。

As we saw in figure 11 . 7 , when an hf signal flows in a pc track running over a ground plane the arrangement functions as a microstrip transmission line and the majority of the return current flows in the ground plane underneath the line 如圖11 . 7 ,高頻信號伴行地線傳輸時,可以將其視為“微帶線” ,這時大部分返回電流都會從信號線下方的地線流過。

An omnidirectional ultra - wideband monopole antenna , with the characteristics of simple structure , easy fabrication and low cost , mainly comprises a ground plane , a u - shaped radiating member above the ground plane and a feeding member 一種可提供超寬頻操作頻帶之全向性超寬頻單極天線,其具有結構簡單、制作簡單以及成本低廉的特性。

Such as harmonic distorted in front analog circuit , sample clock shaking , analog power and the noise in ground plane etc . some suggestion of circuit design is given to improve high - speed a / d circuit performance 在高速模數轉換電路的應用設計中地電源供電設計、模數地平面設計、采樣時鐘設計等方面提出一些具有指導性的意見。

Those include power supply circuit design ; ground plane design and sample clock design . combining some radar development , its high - speed a / d circuit is tested , and has given out some test results 最后結合某雷達研制,對其高速模數轉換電路設計進行了實際測試評估,并給出了部分測試結果。

Both the landscape and architecture components of the court ? the fountains , the ? operate at a local scale to disrupt the continuum of the ground plane , circulation , and views 構成庭園的景觀與建筑元素噴泉、植栽、柱廊在局部的尺度上中斷了地平面、動線及視線的連續。

To broaden the antenna ' s impedance bandwidth and its radiation pattern , a novel printed dipole antenna with reflecting structure of v - shaped ground plane was proposed 摘要為了擴展天線的阻抗帶寬和改善天線的方向性,提出一種采用了地平面反射結構的新型印制偶極子天線。

Ground plane : a conductive plane as a common ground reference in a multilayer pcb for current returns of the circuit elements and shielding 接地層:多層pcb中的公共接地參照的導電層,用做電流回路和屏蔽。

Shielding ground planes are provided for the isolation of devices to prevent electromagnetic interference 隔離接地面用來將元件隔離以避免電磁的干擾。

Simulation of water pulse forming line switch with prepulse suppression ground plane 具有預脈沖屏蔽板的水介質自擊穿開關的電路模擬

Analysis of signal integrity of high - speed interconnects on meshed ground plane 網孔狀地參考面上高速互連的信號完整性分析

The ground plane should extend far enough ahead of and behind the model so that no local disturbances are introduced . 地板的大小應超出模型前后足夠遠,以免引起局部擾動。