Title :
Thin-film bulk acoustic resonator RF bandpass filter design technique using genetic algorithm
Author :
Lee, Jeongheum ; Kim, Hyeongdong
Author_Institution :
Dept. of Electr. & Comput. Eng., Hanyang Univ., Seoul, South Korea
fDate :
3/6/2003 12:00:00 AM
Abstract :
A thin-film bulk acoustic resonator (FBAR) filter design technique based on the genetic algorithm (GA) is proposed. Instead of using the approximate Butterworth-Van Dyke (BVD) model, the GA is used to optimise the structure of each FBAR with its exact analytical impedance expressions. US-PCS Rx/Tx bandpass filters, obtained by the proposed method, exhibit better response than those obtained by the BVD model.
Keywords :
UHF filters; acoustic resonator filters; band-pass filters; bulk acoustic wave devices; frequency response; genetic algorithms; ladder filters; passive filters; thin film devices; 1930 to 1990 MHz; RF bandpass filter; US-PCS Rx/Tx bandpass filters; analytical impedance expressions; filter design technique; genetic algorithm; thin-film bulk acoustic resonator;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20030313
