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基于非对称共地λ/4谐振器对的三频带滤波器设计
引用本文:孙盼,梁飞,吕文中,倪猛,王志勇.基于非对称共地λ/4谐振器对的三频带滤波器设计[J].电子元件与材料,2012,31(7):43-46.
作者姓名:孙盼  梁飞  吕文中  倪猛  王志勇
作者单位:1. 华中科技大学电子科学与技术系,湖北武汉,430074
2. 武汉虹信通信技术有限责任公司基配事业部,湖北武汉,430073
基金项目:国家自然科学基金资助项目,新一代宽带无线移动通信网国家科技重大专项资助项目
摘    要:提出了一种全新的谐振器结构——非对称共地λ/4谐振器对.此谐振器对由一个4 UIR谐振器和λ/4 SIR谐振器通过共用一个接地通孔组合而成.其中SIR谐振器工作于2.4 GHz与5.2 GHz频段,UIR谐振器工作于3.6 GHz频段,据此设计制作了一个四级三频带切比雪夫型滤波器并进行了测试和仿真.结果表明,该滤波器的测试结果与仿真符合良好.利用此谐振器对设计的滤波器不仅体积大大减小,而且每个通带的位置及其耦合特性都能够独立调谐.

关 键 词:三频带滤波器  四分之一波长谐振器对  阶梯阻抗谐振器  均匀阻抗谐振器

Design of triple-bandpass filter using asymmetric quarter-wavelength resonator pairs
SUN Pan , LIANG Fei , LU Wenzhong , NI Meng , WANG Zhiyong.Design of triple-bandpass filter using asymmetric quarter-wavelength resonator pairs[J].Electronic Components & Materials,2012,31(7):43-46.
Authors:SUN Pan  LIANG Fei  LU Wenzhong  NI Meng  WANG Zhiyong
Affiliation:1.Department of Electronic Science and Technology,Huazhong University of Science and Technology,Wuhan 430074,China;2.Base Station Supporting Products Division,Wuhan Hongxin Telecommunication Technologies Co,Ltd,Wuhan 430073,China)
Abstract:A novel asymmetric quarter-wavelength(λ/4) resonator pair was proposed,which was composed of two different λ/4 resonators that share the same via.One of the resonators took the form of stepped-impedance resonator(SIR) which was designed to operate at 2.4 GHz and 5.2 GHz,the other resonator took the form of uniform-impedance resonator(UIR) which operated at 3.6 GHz.A triple-band four-order Chebyshev filter by using the resonator pair was designed and fabricated,which was tested and simulated.Results show that the test results of the filter are in good agreement with the full-wave simulating results.Using the structure of the resonator pair,the size of filters can be miniaturized obviously,and each bandpass location and coupling property can be tuned in a large region individually.
Keywords:triple-passband filter  quarter-wavelength resonator pair  stepped-impedance resonator  uniform-impedance resonator
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