Title :
Broad band CBCPW phase shifter optimized with Jumping Genes Evolutionary Algorithm
Author :
Yeung, S.H. ; Zheng, S.Y. ; Man, K.F. ; Chan, W.S.
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Kowloon
Abstract :
A 45deg microwave phase shifter is optimized for broad band application using jumping genes evolutionary algorithm. The simple structure based on conductor backed coplanar waveguide structure eliminates the air bridges and via holes. The measured insertion loss and phase difference for the two paths are within 0.5 dB and 45degplusmn5deg, respectively, over the frequency band from 3.21 to 4.62 GHz. The measured return loss is found to be better than -10 dB over the operating frequency band.
Keywords :
coplanar waveguides; evolutionary computation; microwave phase shifters; broadband CBCPW phase shifter; conductor backed coplanar waveguide structure; frequency 3.21 GHz to 4.62 GHz; insertion loss; jumping genes evolutionary algorithm; loss 0.5 dB; microwave phase shifter; Bandwidth; Bridge circuits; Conductors; Coplanar waveguides; Coupling circuits; Evolutionary computation; Frequency measurement; Insertion loss; MMICs; Phase shifters; CBCPW; CPW; broad band; jumping genes; phase shifter;
Conference_Titel :
Industrial Technology, 2008. ICIT 2008. IEEE International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-1705-6
Electronic_ISBN :
978-1-4244-1706-3
DOI :
10.1109/ICIT.2008.4608407
