ZENG Liuxing, LIN Fumin, XIAO Yujie, XIE Zhenxiong. Research on the Novel Double-Layer Multi-cavity Filter[J]. Chinese Journal of Electronics, 2019, 28(4): 878-883. doi: 10.1049/cie.2019.02.007
Citation: ZENG Liuxing, LIN Fumin, XIAO Yujie, XIE Zhenxiong. Research on the Novel Double-Layer Multi-cavity Filter[J]. Chinese Journal of Electronics, 2019, 28(4): 878-883. doi: 10.1049/cie.2019.02.007

Research on the Novel Double-Layer Multi-cavity Filter

doi: 10.1049/cie.2019.02.007
Funds:  This work is supported by the Guangdong Science and Technology Programs (No.2016A010101024).
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  • Corresponding author: LIN Fumin (corresponding author) was born in 1964. He received the Ph.D. degree from Insititute of Electronics, Chinese Academy of Sciences in 2004. He is now a professor and also the instructor of graduate students with the School of Physics & Optoelectronic Engineering, Guangdong University of Technology, Guangdong, China. His research concerns high power microwave devices, microwave filters and RF circuits, satellite navigation antenna, receiving terminal system, etc. (Email:linfumin@gdut.edu.cn)
  • Received Date: 2017-04-06
  • Rev Recd Date: 2018-04-13
  • Publish Date: 2019-07-10
  • A novel structure cavity filter, crosscoupled multi-cavity filter with double-layer structure is proposed. The transmission zero of cross coupling is analyzed qualitatively and quantitatively, while some of the design experience of simulation modeling are summed up and the magnetic coupling and electric coupling of synchronously tuned coupling resonators with double-layer structure are studied. Simulation and experimental results show that the cross-coupled multi-cavity filter with doublelayer structure not only can meet the high selectivity requirements, but also save space, which is conducive to miniaturization design. The feasibility, practicability and superior performance of the double-layer multi-cavity filter are fully verified by the experimental samples and the measurement results of the six-pole double-layer base station filter processed by the design model.
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