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基于ads的帶阻濾波器設(shè)計(jì)-文庫(kù)吧資料

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【正文】 eague match at Chelsea on Sunday.I am going to be at the match tomorrow and I have asked to meet Yaya Toure, he told BBC Sport.For me it39。s antiracism taskforce, is in London for the Football Association39。nearest CAB.For more information about making a claim to an employment tribunal, seere clear about the terms of the agreement. It might be best to get advice from an experienced adviser, for example, at a Citizens Advice Bureau. if you win the case.If you are thinking about signing up for damagesbased agreement. In England and Wales, your solicitor can39。Further help.Employment tribunals are less formal than some other courts, but it is still a legal process and you will need to give evidence under an oath or affirmation.Most people find making a claim to an employment tribunal challenging. If you are thinking about making a claim to an employment tribunal, you should get help straight away from one of the organisations listed underappealedDismissal.You can make a claim to an employment tribunal, even if you haven39。t agree with the disciplinary action your employer has taken against you1. 《電磁場(chǎng)與微波技術(shù)》 人民郵電出版社2. 《射頻電路理論與設(shè)計(jì)》人民郵電出版社 3. 《ads應(yīng)用詳解》 人民郵電出版社4. 網(wǎng)絡(luò)所搜g an employment tribunal claiEmployment tribunals sort out disagreements between employers and employees.You may need to make a claim to an employment tribunal if:(11) 數(shù)據(jù)結(jié)果顯示: 對(duì)比結(jié)果 查看優(yōu)化后的曲線圖可知: 處, 在 6 GHz 處, 在 , 這組數(shù)據(jù)比起優(yōu)化前的要好的多了,以上數(shù)據(jù)滿足了設(shè)計(jì)要求的技術(shù)指標(biāo)。 (7)雙擊Optim ,打開(kāi)【Nominal Optimization】窗口,在其中設(shè)置優(yōu)化控件,設(shè)置優(yōu)化控件的步驟如下: 選擇隨機(jī)Random 優(yōu)化方式 優(yōu)化次數(shù) 400 次,其余保持默認(rèn)狀態(tài)。 (2) 修改S參數(shù)仿真控件中微帶線段的取值方式,將微帶線段導(dǎo)體帶的寬度W設(shè)置為變量。 優(yōu)化設(shè)計(jì)過(guò)程 (1)(3)圖中曲線不滿足技術(shù)指標(biāo),需要調(diào)整原理圖,下面采用優(yōu)化方法調(diào)整原理圖。 (3)數(shù)據(jù)顯示,結(jié)果如下: (4)對(duì)比設(shè)計(jì)指標(biāo)發(fā)現(xiàn)此設(shè)計(jì)在多個(gè)方面存在不足,如:中心頻率沒(méi)有正好落在6GHz,M1和M2點(diǎn)的衰減又過(guò)大在微帶線元件面板上,選擇微帶線MLIN,4次插入到原理圖中,并做如下設(shè)置: (3)在微帶線元件面板選擇微帶線的T形結(jié)MTEE,3次插入到原理圖中,并做如下設(shè)置: (4)在微帶線元件面板,選擇終端開(kāi)路的微帶線MLOC,3次插入原理圖中,并做如下設(shè)置: (5)在S參數(shù)仿真元件面板上,選擇負(fù)載終端Term,2次插入原理圖中,并讓兩個(gè)負(fù)載均接地。 設(shè)計(jì)原理圖(1)保留前面設(shè)置的微帶線參數(shù),刪除原理圖中的一個(gè)微帶線MLIN。(8) 在【LineCalc】計(jì)算窗口,繼續(xù)計(jì)算將頻率Freq 設(shè)置為 6 GHz將微帶線的特性阻抗設(shè)置為 Ohm將微帶線的長(zhǎng)度相移設(shè)置為 90度點(diǎn)擊【Synthesize】按鈕可計(jì)算出微帶線的寬度 W = L = 。(4) 在【LineCalc】計(jì)算窗口,設(shè)置:將頻率Freq 設(shè)置為 6 GHz將微帶線的特性阻抗設(shè)置為 Ohm將微帶線的長(zhǎng)度相移設(shè)置為 90度點(diǎn)擊【Synthesize】按鈕可計(jì)算出 微帶線的寬度 W = 和微帶線的長(zhǎng)度 L = 。 在【Microstrip Substrate】對(duì)話框中進(jìn)行設(shè)置,設(shè)置好后在原理圖中有:(2) 在微帶線元件面板上,選擇一個(gè)微帶線MLIN,插入原理圖的畫(huà)圖區(qū)。 利用ADS的工具tools完成對(duì)微帶線的計(jì)算利用ADS提供的工具tools,可以進(jìn)行微帶線物理尺寸和電參數(shù)之間的數(shù)值計(jì)算,若給定微帶線的特性阻抗和電長(zhǎng)度,可以計(jì)算微帶線的寬度。濾波器阻帶衰減25dB;, 衰減3dB;輸入輸出阻抗:50Ω。下面我們用ADS設(shè)計(jì)并仿真微帶短截線帶阻濾波器的原理圖。ADS可以為電路設(shè)計(jì)者提供進(jìn)行模擬、射頻與微波等電路和通信系統(tǒng)設(shè)計(jì)的仿真分析方法,其提供的仿真分析方法大致可以分為時(shí)域仿真、頻域仿真、系統(tǒng)仿真和電磁仿真。完成系統(tǒng)建模后,就可用實(shí)際RE和DSP電路設(shè)計(jì)替代行為模型,評(píng)估它們對(duì)性能的影響?! DS采用自頂至底的設(shè)計(jì)和自底至頂?shù)尿?yàn)證方法,將系統(tǒng)
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