A method of reducing insertion loss for microstrip filters
65 viewsDOI:
https://doi.org/10.54939/1859-1043.j.mst.97.2024.75-82Keywords:
Multiple coupled-resonator filter; Insertion loss; Transfer function of filter; Coupling matrix; Microstrip square open loop resonator.Abstract
Based on the theory of multiple coupled-resonator filter, coupling matrix and microstrip square open loop resonator, this paper studies a method of designing bandpass microstrip filter in order to reduce insertion loss. The results of simulation on ADS software and measurement on vector network analysis machine of a sample of designed filter showed that the method can reduce insertion loss which compare to other common microstrip filters. The method can be completely used to design microstrip filters with low insertion loss and high selectivity, applying for wireless systems.
References
[1]. Agilent, “ADS Circuit Design Cookbook 2.0”, (2011).
[2]. Agilent Technology, “Advanced Design System”, (2014).
[3]. J. S. Hong and M. J. Lancaster, “Microstrip Filters for RF/Microwave Applications”, John Wiley & Sons (2001).
[4]. A. E. Atia and A. E. Williams, “Narrow-Bandpass Waveguide Filters”, IEEE Trans. Microwave Theory Tech., vol. MTT-20, pp. 258-265, (1972).
[5]. R. J. Cameron, C. M. Kudsia, and R. R. Mansour, “Microwave filters for communication systems: fundamentals, design, and applications”, John Wiley & Sons (2007).
[6]. R. J. Cameron, “General Coupling Matrix Synthesis Methods for Chebychev Filtering Functions”, IEEE Trans. Microwave Theory Tech., vol. 47, pp. 433-442, (1999).
[7]. S. Amari, C. LeDrew, and W. Menzel,“Space-mapping optimization of planar coupled-resonator microwave filters”, Microwave Theory and Techniques, IEEE Transactions on, vol. 54, no. 5, pp. 2153–2159, (2006).
[8]. Matthias Caenepeel, Fabien Seyfert, Yves Rolain and Martine Olivi, “Parametric Modeling of the Coupling Parameters of Planar Coupled-Resonator Microwave Filters”, Conference: European Microwave Week (2015).
