IEICE Electronics Express | |
A low phase noise FBAR based multiband VCO design | |
Guoqiang Zhang2  Kenya Hashimoto1  Haruichi Kanaya2  Ramesh K. Pokharel2  Keiji Yoshida2  Shuji Tanaka3  Masayoshi Esashi3  Abhay Kochhar3  | |
[1] Graduate School of Engineering, Chiba University;Graduate School of Information Science and Electrical Engineering, Kyushu University;Graduate School of Engineering, Tohoku University | |
关键词: FBAR; low phase noise; low frequency instability; multiband; VCO; | |
DOI : 10.1587/elex.10.20130425 | |
学科分类:电子、光学、磁材料 | |
来源: Denshi Jouhou Tsuushin Gakkai | |
【 摘 要 】
References(6)Cited-By(1)In this letter, design methodlogy of a low phase noise multiband film bulk acoustic resonator (FBAR) based voltage controlled oscillator (FBAR-VCO) is presented. It employs a 1.9GHz cross-coupled FBAR-VCO core, and extends oscillation to 0.65GHz, 0.98GHz, 1.96GHz and 3.92GHz by a divider and a multiplier. By analyzing the low frequency instability and proposing the solution based on a capacitor, cross-coupled architecture is employed in 1.9GHz FBAR-VCO core and phase noise degradation is extensively studied for extended frequencies. By considering the effect of transistors’ size on the Q-factor and impedance of FBAR, excellent phase noise and high loop gain are obtained. The post-layout simulation shows the proposed multiband FBAR-VCO achieves the lowest phase noise below −150dBc/Hz at 1MHz offset frequency.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201911300691815ZK.pdf | 1658KB | download |