Lamb Wave AlN Micromechanical Filters Integrated With On-chip Capacitors for RF Front-End Architectures

IEEE Journal of the Electron Devices Society

Hao Zhang¹  Daihua Zhang¹  Ji Liang¹  Hongxiang Zhang¹  Wei Pang¹ 

[1] State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin, China;

关键词: Aluminum nitride;    band pass filter;    Lamb wave resonator;    microelectromechanical systems (MEMS).;   

DOI  :  10.1109/JEDS.2015.2417865

来源: DOAJ

【 摘 要 】

This paper reports on the implementation of an ultraminiature 140 MHz narrowband filter based on aluminum nitride Lamb wave resonators. Monolithically integrated with a pair of on-chip capacitors and cascaded with a pair of inductors, the filter is well matched to 50 ohm, showing a remarkably high performance. A low pass-band insertion loss of 2.78 dB and steep filter skirts are achieved. The form factor of the monolithic microelectromechanical systems filter is more than ten times smaller than its surface acoustic wave counterpart in the intermediate frequency band and it involves much simpler matching circuits.

【 授权许可】

Unknown