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Method of Accurate Design of a Microwave Band-Pass Filter Based on Adjust of Center Frequency

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3 Author(s)
Zhang li-ming ; Inst. of Microelectron. Technol., Southwest Jiaotong Univ., Chengdu ; Feng Quan-yuan ; You Li-wen

In this paper, the problem of excursion in center frequency of half-wavelength parallel-coupled line band-pass filter in traditional design is discussed.First of all, the basic principle of half-wavelength parallel-coupled-resonator filter is introduced, and the reasons for the deviation of center frequency are analyzed. Based on an approximately linear correction in center frequency,a parallel coupling band-pass filter with high performance working in X wave band is designed . The simulation results in ADS (advanced design system) approves the validity of this theory , in compare, the relative error between the theory and the optimal goal is less than 10%.

Published in:

Education Technology and Computer Science, 2009. ETCS '09. First International Workshop on  (Volume:1 )

Date of Conference:

7-8 March 2009