Technique for low-loss and wideband surface acoustic wave filters

被引：1

作者：

Dai, EG ^{[1
]}

机构：

[1] Peking Univ, Dept Elect, Natl Lab Local Fiber Opt Commun Networks & Adv Op, Beijing 100871, Peoples R China

来源：

ELECTRONICS LETTERS | 2000年 / 36卷 / 22期

关键词：

D O I：

10.1049/el:20001305

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 ring surface acoustic wave filter on high electromechanical coupling coefficient substrate is demonstrated. The insertion loss is 1.9dB and the 3dB fractional bandwidth is 30%. The filter also shows linear phase characteristics and low-passband ripples. The insertion loss is the lowest reported with such a wide bandwidth.

引用

页码：1904 / 1905

页数：2

共 7 条

[1]

CHAMORRO AL, 1991, ULTRASON, P129, DOI 10.1109/ULTSYM.1991.234140

[2] SAW ring filters with insertion loss of 1 dB [J].