现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2013年
19期
80-82
,共3页
阶跃阻抗谐振器%交叉耦合%小型化%宽阻带
階躍阻抗諧振器%交扠耦閤%小型化%寬阻帶
계약조항해진기%교차우합%소형화%관조대
stepped impedance resonator%cross-coupling%miniaturization%wide stop-band
提出一种小型化宽阻带微带带通滤波器，采用半波长阶跃阻抗谐振器结构，且在不相邻的谐振器之间引入交叉耦合，从而在滤波器的阻带上产生了2个传输零点，使阻带抑制在3.95~13.27 GHz小于-20 dB，使寄生通带在中心频率的3.92倍处。滤波器的最终尺寸仅为12.2 mm×11.5 mm，即0.21λg×0.2λg，相比于传统的发夹型滤波器，此滤波器的体积减小了63.5%，而且实测的结果与仿真结果达到了较好的一致性。所提出的滤波器具有更宽的带外抑制，更小的尺寸，且设计简单，在工程领域具有实际的应用价值。
提齣一種小型化寬阻帶微帶帶通濾波器，採用半波長階躍阻抗諧振器結構，且在不相鄰的諧振器之間引入交扠耦閤，從而在濾波器的阻帶上產生瞭2箇傳輸零點，使阻帶抑製在3.95~13.27 GHz小于-20 dB，使寄生通帶在中心頻率的3.92倍處。濾波器的最終呎吋僅為12.2 mm×11.5 mm，即0.21λg×0.2λg，相比于傳統的髮夾型濾波器，此濾波器的體積減小瞭63.5%，而且實測的結果與倣真結果達到瞭較好的一緻性。所提齣的濾波器具有更寬的帶外抑製，更小的呎吋，且設計簡單，在工程領域具有實際的應用價值。
제출일충소형화관조대미대대통려파기，채용반파장계약조항해진기결구，차재불상린적해진기지간인입교차우합，종이재려파기적조대상산생료2개전수영점，사조대억제재3.95~13.27 GHz소우-20 dB，사기생통대재중심빈솔적3.92배처。려파기적최종척촌부위12.2 mm×11.5 mm，즉0.21λg×0.2λg，상비우전통적발협형려파기，차려파기적체적감소료63.5%，이차실측적결과여방진결과체도료교호적일치성。소제출적려파기구유경관적대외억제，경소적척촌，차설계간단，재공정영역구유실제적응용개치。
A miniaturized wide stop-band micro-strip band-pass filter is proposed,which uses the structure of half-wave-length stepped impedance resonator,and the cross-coupling structure is introduced into non-adjacent resonators to form two transmission zeros in the stopband which makes the stop-band rejection lower than -20 dB in the range of 3.95~13.27 GHz and the spurious passband at the frequency in 3.92 times of the centre frequency. The final size of the proposed filter is only 12.2 mm × 11.5 mm,i.e.,0.21λg × 0.2λg. Compared with the traditional hairpin filters,the proposed filter reduces the size of 63.5%. The measured results show good agreement with the simulated results. The proposed filter has wide out-of-band rejec-tion,smaller size,simple design and obvious practical value in the engineering field.
