An improved one-dimensional sinusoidal band-stop filter using weighted techniques
Zhaohong Wang,
Jiarui Guo,
Yikun Luo,
Chao Han
Affiliations
Zhaohong Wang
Key Laboratory of Physical Electronics and Devices, Ministry of Education, Key Laboratory of Multifunctional Materials and Structures, Ministry of Education, School of Electronic Science and Engineering, Faculty of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China
Jiarui Guo
Key Laboratory of Physical Electronics and Devices, Ministry of Education, Key Laboratory of Multifunctional Materials and Structures, Ministry of Education, School of Electronic Science and Engineering, Faculty of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China
Yikun Luo
Key Laboratory of Physical Electronics and Devices, Ministry of Education, Key Laboratory of Multifunctional Materials and Structures, Ministry of Education, School of Electronic Science and Engineering, Faculty of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China
Chao Han
School of Science, Xi’an Polytechnic University, No. 19 of Jinhua South Road, Beilin District, Xi’an 710048, People’s Republic of China
In this paper, the weighting techniques are directly acted on traditional 1D sinusoidal electromagnetic bandgap (EBG) structures. The proposed 1D weighted EBG band-stop filter is theoretically designed by using coupled-mode theory, and the coupling coefficient amplitudes of the 1D sinusoidal EBG structure are directly weighted using window functions. The passband ripple, reflected sidelobes, and bandwidth of the band-stop filter are improved using weighted window functions, and the bandgap depth is adjusted by changing the amplitude factor of weighting functions. For validation, the fabrication and measurements have also been done for the proposed filter. The measurement and simulation results have a close match, and the design concept is verified.
