A Ku-Band Oscillator Utilizing Overtone Lithium Niobate RF-MEMS Resonator for 5G

被引：12

作者：

Kourani, Ali ^{[1
]}

Yang, Yansong ^{[1
]}

Gong, Songbin ^{[1
]}

机构：

[1] Univ Illinois, Dept Elect & Comp Engn, Urbana, IL 61801 USA

来源：

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2020年 / 30卷 / 07期

基金：

美国国家科学基金会;

关键词：

Lithium niobate (LiNbO3); MEMS; oscillator; overtone;

D O I：

10.1109/LMWC.2020.2996961

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This letter presents a 12.9-GHz silicon germanium (Site) Pierce oscillator using a third antisymmetric overtone in a lithium niobate (LiNbO3) resonator for 56 communications. Quarter-wave resonators are used to satisfy the Barkhausen oscillation conditions for the third overtone while suppressing the fundamental and higher order resonances. The oscillator achieves a measured phase noise of -70 and -111 dBc/Hz at 1 and 100-kHz offsets from a 12.9-CHz carrier while consuming 20 mW of dc power. The oscillator achieves a figure-of-merit of 200 dBc/Hz at 100-kHz offset, surpassing the state-of-the-art electromagnetic (EM) and overtone MEMS oscillators. The achieved oscillation frequency is the highest reported to date for an MEMS oscillator. The demonstrated performance shows the strong potential of microwave acoustic oscillators for 56 frequency synthesis. This work will enable low-power 56 transceivers featuring high speed, high sensitivity, and high selectivity in small form factors.

引用

页码：681 / 684

页数：4

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