Title :
Design of compact and simple three-frequency transformer with two-section
Author_Institution :
Dept. of Electron. Inf. Eng., Xi´´an Univ. of Posts & Telecommun., Xi´´an, China
Abstract :
A design of compact and simple three-frequency simultaneously matching transformer with two-section is proposed. Design equations and corresponding solution procedure are shown, based on lossless transmission-line circuit model and genetic algorithm technique. The performance of the return-loss bandwidth varying with transforming ratio is analyzed. Further, a transformer operating in 1 GHz, 3 GHz, and 5 GHz with two-section at different transforming ratio (0.6, 1.5 and 2), is designed and analyzed. The investigated results confirm that the designed transformer make the circuits size distinctly decreased.
Keywords :
genetic algorithms; microwave devices; transformers; transmission line theory; frequency 1 GHz; frequency 3 GHz; frequency 5 GHz; genetic algorithm technique; lossless transmission-line circuit model; matching transformer; return-loss bandwidth; three-frequency transformer; Bandwidth; Design methodology; Genetic algorithms; Propagation losses; Simulation; Substrates; Transmission lines; compact and simple transformer; decreasing circuits size; genetic algorithm; simultaneously matching;
Conference_Titel :
Electric Information and Control Engineering (ICEICE), 2011 International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-8036-4
DOI :
10.1109/ICEICE.2011.5778247
