电波科学学报
電波科學學報
전파과학학보
CHINESE JOURNAL OF RADIO SCIENCE
2009年
6期
1115-1118
,共4页
低通滤波器%阶梯阻抗梳状谐振器%开口谐振环地面缺陷结构
低通濾波器%階梯阻抗梳狀諧振器%開口諧振環地麵缺陷結構
저통려파기%계제조항소상해진기%개구해진배지면결함결구
lowpass filter%step-impedance hairpin resonator%split-ring resonator defected ground structure(SRR DGS)
提出了一种新颖的具有陡峭边带和宽阻带的小型化低通滤波器.通过把开口谐振环地面缺陷结构(Split-Ring Resonator Defected Ground Structure,SRR DGS)与阶梯阻抗梳状谐振器结合,提高了滤波器的选择特性,同时获得了宽阻带.对所提出的结构作了加工并进行了实物测量,测试结果表明:滤波器选择特性大于160 dB/GHz,在2.98 GHz到8.2 GHz范围内抑制度大于20 dB,而占用面积仅为20×25 mm~2.
提齣瞭一種新穎的具有陡峭邊帶和寬阻帶的小型化低通濾波器.通過把開口諧振環地麵缺陷結構(Split-Ring Resonator Defected Ground Structure,SRR DGS)與階梯阻抗梳狀諧振器結閤,提高瞭濾波器的選擇特性,同時穫得瞭寬阻帶.對所提齣的結構作瞭加工併進行瞭實物測量,測試結果錶明:濾波器選擇特性大于160 dB/GHz,在2.98 GHz到8.2 GHz範圍內抑製度大于20 dB,而佔用麵積僅為20×25 mm~2.
제출료일충신영적구유두초변대화관조대적소형화저통려파기.통과파개구해진배지면결함결구(Split-Ring Resonator Defected Ground Structure,SRR DGS)여계제조항소상해진기결합,제고료려파기적선택특성,동시획득료관조대.대소제출적결구작료가공병진행료실물측량,측시결과표명:려파기선택특성대우160 dB/GHz,재2.98 GHz도8.2 GHz범위내억제도대우20 dB,이점용면적부위20×25 mm~2.
In this paper,a novel compact lowpass filer with sharp cutoff and widestopband is proposed.Combined split-ring resonator defected ground structure (SRR DGS)with step-impedance hairpin resonator,the selectivity of filter is improved significantly,and at the same time,wide stopband is achieved.The structure was fabricated and measured.The results show that the selectivity is better than 160 dB/GHz,and stopband attenuation level is more than 20 dB at the range of 2.98 to 8.2 GHz,but the occupied area is only 20×25 mm~2.
