本文關(guān)鍵詞： 分層媒質(zhì)空域并矢Green函數(shù) 矩量法 頻率掃描 微波寬帶無源電路 自適應(yīng)算法　出處：《中國科學(xué):信息科學(xué)》2017年07期 　論文類型：期刊論文

【摘要】：本文基于分層媒質(zhì)空域并矢Green函數(shù)的精確、快速計算,結(jié)合混合位積分方程的矩量法模型,建立了一種自適應(yīng)的分層微帶無源電路寬帶掃頻算法.該算法以目標(biāo)頻段內(nèi)Chebyshev多項式零點為頻率樣點建立插值機制,其插值矩陣的相對誤差通過矩陣Frobenius范數(shù)給予定義,并由此作為自適應(yīng)機制的判斂依據(jù).實驗表明,以頻率區(qū)間內(nèi)的Chebyshev多項式零點作插值節(jié)點,相比于等間距樣點,擁有更低和更平穩(wěn)的誤差表現(xiàn).該方法在無需任何先驗條件的情況下,通過自適應(yīng)反饋系統(tǒng)可以精確、快速地求得寬帶微波無源電路的全波分析結(jié)果.根據(jù)大量統(tǒng)計數(shù)據(jù),本文還定量地給出了該算法在數(shù)值精度和計算效率之間的權(quán)衡關(guān)系.
[Abstract]:In this paper, based on the accurate and fast calculation of the dyadic Green function in spatial domain of stratified medium, combined with the method of moment model of the mixed potential integral equation, An adaptive wideband sweep algorithm for microstrip passive circuits is proposed, in which the Chebyshev polynomial 00:00 in the target band is used as the frequency sample to establish the interpolation mechanism. The relative error of the interpolation matrix is defined by the Frobenius norm of the matrix. The experimental results show that the 00:00 Chebyshev polynomial in the frequency range is used as the interpolation node, compared with the equidistant sample points. This method can obtain the full wave analysis results of wideband microwave passive circuits accurately and quickly by adaptive feedback system without any prior conditions, according to a large number of statistical data. The trade-off between numerical accuracy and computational efficiency is also given quantitatively.
【作者單位】： 東南大學(xué)毫米波國家重點實驗室;
【基金】：國家重點基礎(chǔ)研究發(fā)展計劃(973計劃)(批準(zhǔn)號:2013CB329002) 國家自然科學(xué)基金(批準(zhǔn)號:61601121,61401092,61302019)資助項目
【分類號】：TN820

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【共引文獻】

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本文編號：1504294