Title :
Cost effective ferroelectric thick film phase shifter based on screen-printing technology
Author :
Hu, Wenfei ; Zhang, Dou ; Lancaster, Michael J. ; Yeo, Kenneth S K ; Button, Tim W. ; Su, Bo
Author_Institution :
Sch. of Eng., Birmingham Univ., UK
Abstract :
A cost effective phase shifter technology based on ferroelectric thick film fabricated by screen-printing technology is described in this paper. As the demonstration device, a reflection-type phase shifter is designed and fabricated. At 2.2GHz to 2.6GHz band, the reflection-type phase shifter offers an average differential phase shift about 48° with a mean insertion loss of -2.4dB. The biasing DC voltage to achieve this performance is about 100V. This is the first report on screen-printed ferroelectric thick film phase shifter which offers promising device performance.
Keywords :
ferroelectric devices; microwave phase shifters; thick film circuits; thick films; -2.4 dB; 2.2 to 2.6 GHz; differential phase shift; ferroelectric thick film phase shifter; reflection-type phase shifter; screen-printing technology; Ceramics; Costs; FETs; Fabrication; Ferroelectric materials; Insertion loss; Phase shifters; Semiconductor thin films; Substrates; Thick films;
Conference_Titel :
Microwave Symposium Digest, 2005 IEEE MTT-S International
Print_ISBN :
0-7803-8845-3
DOI :
10.1109/MWSYM.2005.1516669
