DESIGN OF SWITCHED-CAPACITOR AND WAVE DIGITAL-FILTERS WITH LINEAR-PHASE AND HIGH AMPLITUDE SELECTIVITY

被引：5

作者：

BAHER, H ^{[1
]}

OMALLEY, M ^{[1
]}

机构：

[1] NATL UNIV IRELAND UNIV COLL DUBLIN,DEPT ELECTR & ELECT ENGN,DUBLIN 4,IRELAND

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS | 1990年 / 37卷 / 05期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1109/31.54998

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A design technique, and the associated algorithm, are presented for selective linear-phase low-pass and high-pass sampled-data filters. The resulting filter transfer functions are particularly suitable for realization as leap-frog lossless discrete integrator (LDI) switched-capacitor structures and also in wave digital form. Due to the specific form of the transfer function, the filters generally have no lumped-element counterparts. The technique leads to an optimum compromise between amplitude selectivity and passband phase linearity under the restriction of a prescribed form of the transfer function, and allows the use of finite jω-axis zeros of transmission for achieving high amplitude selectivity. The transfer functions presented are also capable of realization as distributed microwave filters, but these require the use of coupled-wire networks in the form of distributed Brune sections, if jω-axis zeros of transmission are introduced. © 1990 IEEE

引用

页码：614 / 622

页数：9

共 17 条

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