Research of defected ground structure microstrip low-pass filter using stepped impedance shunt stubs structure

doi:10.3969/j.issn.0253-2778.2016.01.001

Journal of University of Science and Technology of China ›› 2016, Vol. 46 ›› Issue (1): 1-5.DOI: 10.3969/j.issn.0253-2778.2016.01.001

• Original Paper •

Research of defected ground structure microstrip low-pass filter using stepped impedance shunt stubs structure

NI Chun, ZHANG Liang, WU Xianliang, ZHENG Juan

1. School of Electronic and Information Engineering, Hefei Normal University, Hefei 230601, China; 2. School of Electronic and Information Engineering, Hefei University, Hefei 230601, China

Received:2014-12-24 Revised:2015-09-16 Accepted:2015-09-16 Online:2015-09-16 Published:2015-09-16

Abstract

Abstract: Defected ground structure (DGS) can change the effective permittivity of substrate materials and the equivalent circuit of the microstrip transmission line by etching the periodic or nonperiodic defected pattern on the ground plane of the microwave circuit. The traditional DGS microstrip low-pass filter has a narrow stopband, and the stopband rejection is poor. to solve this problem, the circuit structure of DGS is studied deeply . Two DGS microstrip low-pass filter circuits based on SISS structure were designed, by the adoption of rectangular defected ground structure (R-DGS), and the introduction of the rectangular stepped impedance shunt stubs (R-SISS) and semicircle stepped impedance shunt stub(S-SISS). The simulation results show that the novel DGS circuit techniques can effectively improve the RF transmission character in passband, broaden stopband bandwidth, increase stopband rejection, which are satisfactory.

Key words: defected ground structure, rectangular stepped impedance shunt stub, semicircle stepped impedance shunt stub

CLC Number:

TN957.8

NI Chun, ZHANG Liang, WU Xianliang, ZHENG Juan. Research of defected ground structure microstrip low-pass filter using stepped impedance shunt stubs structure[J]. Journal of University of Science and Technology of China, 2016, 46(1): 1-5.

References

［1］
Park J S, Yun J S, Ahn D. A design of the novel coupled-line bandpass filter using defected ground structure with wide stopband performance[J]. IEEE Transactions on Microwave Theory & Techniques, 2002, 50(9): 2037-2043.
[2] Yablonovitch E. Inhibited spontaneous emission in solid-state physics and electronics[J]. Physical review letters, 1987, 58(20): 2059-2062.
[3] Radisic V, Qian Y, Coccioli R, et al. Novel 2-D photonic bandgap structure for microstrip lines[J]. IEEE Microwave & Guided Wave Letters, 1998, 8(2): 69-71.
[4] Kamakar N C, Roy S M, Balbin I. Quasi-static modeling of defected ground structure[J]. IEEE Transactions on Microwave Theory & Techniques, 2006, 54(5): 2160-2168.
[5] Woo D J, Lee T K. Suppression of harmonics in Wilkinson power divider using dual-band rejection by asymmetric DGS[J]. IEEE Transactions on Microwave Theory & Techniques, 2005, 53(6): 2139-2144.
[6] Chen X Q, Wang L X, Weng L H, et al. Compact low pass filter using novel elliptic shape DGS[J]. Microwave & Optical Technology Letters, 2009, 51 (4): 1088-1091.
[7] 闫敦豹, 高强, 付云起, 等. 加窗技术在微带EBG结构中的应用[J]. 微波学报, 2004, 20(4): 60-63.

[8] 陈小群，史小卫，林浩佳,等. 基于等效电路模型映射的DGS低通滤波器设计[C]// 第二届安捷伦科技节暨安捷伦科技生命科学与化学分析技术高层论坛. 上海, 2009.
[9] 魏峰，翟阳文，史小卫，等. 一种新颖的缺陷地微带线低通滤波器[J]. 西安电子科技大学学报, 2009, 36(4): 645-648.

[10] 张金玲，吕英华，李宁,等. 缺陷接地结构抑制微波器件谐波[J]. 电波科学学报, 2009, 24(3): 546-550.

[11] 杨维明，吴姣，张劲,等. 基于分形技术的阶跃阻抗微带低通滤波器设计[J]. 电波科学学报, 2010, 25(5): 1000-1004.

[12] 门阳，游彬. 基于新型缺陷地的谐波抑制微带滤波器设计[J]. 电子器件, 2011, 34(6): 668-671.

()
()

Research of defected ground structure microstrip low-pass filter using stepped impedance shunt stubs structure

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 0

Recommended Articles

Metrics

Comments