SAW filter manufacture and piezoelectric materials evaluation based on printed electronics technology |
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| Authors: | Xiao-chen Liu Kun Li Xiu-wei Xuan Yang Cao Jian-fu Teng |
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| Affiliation: | 1. Tianjin Key Laboratory of Film Electronic and Communication Device, School of Electronics Information Engineering, Tianjin University of Technology, Tianjin, 300384, China
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| Abstract: | In this paper, the silver nanoparticle ink and ink-jet printing technology are used to manufacture the surface acoustic wave (SAW) filters. The characteristics of three common substrate piezoelectric materials of ST-quartz, Y36°-LiTaO3 and Y128°-LiNbO3 are evaluated. The experimental results show that Y128°-LiNbO3 matches the ink much better than others. The printed SAW filter with Y128°-LiNbO3 as piezoelectric substrate is realized, and its center frequency and bandwidth are 18.4 MHz and 500 kHz, respectively. |
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