电子器件Issue(1)：67-71,5.DOI:10.3969/j.issn.1005-9490.2016.01.014
基于缺陷地抑制高阶谐波的带通滤波器设计
Design of a Harmonic-Suppressed Bandpass Filter Using a Defected Ground Structure
摘要
Abstract
Microstrip coupled-line bandpass filter(MCL-BPF)generates parasitic passbands or higher order harmon⁃ics,which are caused by the employment of microstrip lines. By utilizing the single-pole band-reject characteristics and the slow-wave effect of a defected ground structure(DGS),the passbands are improved while the high order har⁃monics are restrained. Both the conventional MCL-BPF and the proposed S-DGS-BPF at the center frequency of 2.4 GHz are analyzed,designed,and fabricated. The measured results agree well with the simulation data,which show a decent harmonic suppression below-22 dB and a return loss of-26.93 dB at the operating frequency,the stop band range is between 3 GHz and 10 GHz. Moreover,a fairly good area reduction of 10%is achieved.关键词
微波带通滤波器/缺陷地结构/宽阻带/谐波抑制Key words
microwave band-pass filter(BPF)/defected ground structure(DGS)/wide stopband/harmonic suppression分类
信息技术与安全科学引用本文复制引用
冯梦璐,杨曙辉,陈迎潮..基于缺陷地抑制高阶谐波的带通滤波器设计[J].电子器件,2016,(1):67-71,5.基金项目
国家自然科学基金项目 （）
