对称负载偶数节低通滤波器的最优综合

The Optimal Synthesis of Even Order Filter with Symmetrical Load

本文提出一类带零约束最佳整多项式。并用以解决了对称负载偶数节低通滤波器的最优综合。它们在通带内增益有等波纹特性,在带外则具有最大斜率。和原Chebyshev特性相比,在带外约付出了1～2 dB的代价。文中还给出了具体的综合表格。

This paper presents a type of optimal integer polynomial with zero-constraint which is fit into the solution of the optimal synthesis of even order filter with symmetrical load. The gain of the filter keeps equiripple property within passband and maximum slope outside the band. Comparing with Chebyshev property, l-2 dB is sacrificed outside the band. The tables of synthesis are given in detail.