Design of a high-power harmonic waveguide filter for radar transmitter
90 viewsDOI:
https://doi.org/10.54939/1859-1043.j.mst.98.2024.42-49Keywords:
Waffle-iron filter; Harmonic filter; Lowpass filter.Abstract
In this article, we present the research results on the designing and manufacturing method of a high-power harmonic filter applied in the X-band transmitter system. The harmonic filter utilizes Waffle-iron filters and quarter-wavelength converters on the waveguide. As a result, the loss and ripple within the passband are improved, while meeting the requirements of cutting off high-order harmonics. Based on the application of microwave theory and simulation software tools, the research team have calculated, designed and manufactured a harmonic filter that meets all the requested specifications for application in X-band transmitter systems: Loss ≤ 0,12dB@8,9-9,6GHz; Reflection coefficient ≤ -20dB@8,9-9,6GHz; Frequency selectivity ≤ -40dB@2nd harmonic, 3rd harmonic, 4th harmonic.
References
[1]. Jijesh J.J, “Design and Development of Band Pass Filter for X-Band Radar Receiver System”, 2nd IEEE International Conference on Recent Trends in Electronics, Information & Communication Technology (RTEICT), (2017). DOI: https://doi.org/10.1109/RTEICT.2017.8256963
[2]. Y. Wang and M. Yu, “True inline cross-coupled coaxial cavity filters”, IEEE Transactions on Microwave Theory and Techniques, vol. 57, no. 12, pp. 2958–2965, (2009). DOI: https://doi.org/10.1109/TMTT.2009.2034221
[3]. Trịnh Xuân Thọ, “Thiết kế bộ lọc thông dải ống dẫn sóng ứng dụng cho hệ thống thu/phát ra đa băng X”, Tạp chí nghiên cứu KHCN quân sự, tr. 30-37, (2021).
[4]. S. B. Cohn, “Design relations for the wide-band waveguide filter”, Proceedings of the IRE, vol. 38, no. 7, pp. 799-803, (1950). DOI: https://doi.org/10.1109/JRPROC.1950.233777
[5]. Matthaei, George L.; Young, Leo; Jones, E. M. T., “Microwave Filters, Impedance-Matching Networks, and Coupling Structures”, McGraw-Hill Book Co, pp.380-409, (1964). DOI: https://doi.org/10.21236/AD0402930
[6]. Aviraj R. Jadhav “Design Data for Quick Development of Corrugated E Plane Tee”, Annual IEEE India Conference (INDICON), (2015). DOI: https://doi.org/10.1109/INDICON.2015.7443386
[7]. S.B. Cohn, “Optimum Design of Stepped Transmission-Line Transfomers”, IRE Transactions on Microwave Theory and Techniques, vol. 3, no. 3, pp. 16–20, (1955). DOI: https://doi.org/10.1109/TMTT.1955.1124940
[8]. M. Yu, “Power-handling capability of RF filters”, IEEE Microwave Magazine, vol. 8, no. 5, pp. 88-97, (2007). DOI: https://doi.org/10.1109/MMM.2007.904712
[9]. S. B. Cohn, E. M. T. Jones, O. Heinz, J. K. Shimizu, B. M. Schiffman, and F. S. Coale, “Research on design criteria for microwave filters”, Stanford Research Institute, Final Report - SRI Project 1331, (1957).
[10]. F. Teberio, I. Arnedo, J. M. Percaz, I. Arregui, P. Martin-Iglesias, T. Lopetegi, and M. A. G. Laso “Accurate Design Procedure for Waffle-Iron Low-Pass Filter”, IEEE/MTT-S International Microwave Symposium, pp.1238-1241, (2018). DOI: https://doi.org/10.1109/MWSYM.2018.8439636
[11]. Ramin Ala, Behzad Ahmadi “A comparative study of high-power low-pass filters for satellite communications”, Microw Opt Lett, pp. 1-4, (2019).
