Title :
Automated Microwave Filter Tuning Using Curve Similarity and Weighted Least Squares
Author :
Kwak, Changsoo ; Uhm, Manseok ; Yom, Inbok ; Eom, Hyo Joon
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea
Abstract :
This letter presents an automated microwave filter tuning algorithm that emulates manual tuning. Measured S-parameter curve´s shape similarity and value similarity with a target one are utilized for coarse tuning. A sensitivity matrix of S-parameter curve´s feature points and a weighted least squares method are used for fine tuning. The utility of algorithm is demonstrated with an X-band four-pole dual-mode cavity filter.
Keywords :
S-parameters; least mean squares methods; microwave filters; S-parameter curve feature points; S-parameter curve shape similarity; X-band four-pole dual-mode cavity filter; automated microwave filter tuning; curve similarity; sensitivity matrix; value similarity; weighted least squares method; Fasteners; Filtering theory; Microwave filters; Scattering parameters; Shape; Tuning; Automated tuning; curve similarity; microwave filters; weighted least squares;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2012.2218585
