Soumya Yandrapalli

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Related publications (18)

Comb Transducer for Generation of SH0 Mode in Crystalline Piezoelectric Membrane

Soumya Yandrapalli, Victor Plessky

It is shown that the comb IDT (CT) can efficiently excite SH0 mode in piezoelectric membrane of suitable orientation. The transducer has pitch equal to the wavelength (p=lambda) and the electrode size is half of the wavelength. As compared to conventional ...

IEEE2020

Crystalline Y-cut Lithium Niobate Layers for the Bulk Acoustic Wave Resonator (YBAR)

Soumya Yandrapalli

The film bulk-acoustic wave resonator (FBAR) technology based on aluminum nitride (AlN) thin films has proven very successful, but it is limited by the relatively low piezoelectric coupling of AlN. Recently, FBAR resonators and laterally excited standing w ...

IEEE2020

5 GHz Band n79 wideband microacoustic filter using thin lithium niobate membrane

Luis Guillermo Villanueva Torrijo, Soumya Yandrapalli, Victor Plessky, Bruno Garcia

Microacoustic resonators made on suspended continuous membranes of LiNbO3 were recently shown to have very strong coupling and low losses at >= 5 GHz, suitable for high-performance filter design. Employing these simple resonator structures, the authors hav ...

2019

5 GHz laterally-excited bulk-wave resonators (XBARs) based on thin platelets of lithium niobate

Luis Guillermo Villanueva Torrijo, Soumya Yandrapalli, Victor Plessky

In a free-standing 400-nm-thick platelet of crystalline ZY-LiNbO3, narrow electrodes (500 nm) placed periodically with a pitch of a few microns can eXcite standing shear-wave bulk acoustic resonances (XBARs), by utilising lateral electric fields oriented p ...

2019

Laterally excited bulk wave resonators (XBARs) based on thin Lithium Niobate platelet for 5GHz and 13 GHz filters

Luis Guillermo Villanueva Torrijo, Annalisa De Pastina, Soumya Yandrapalli, Victor Plessky, Muhammad Faizan

In a free ZY-LiNbO3 400nm thick platelet, narrow electrodes (500nm wide) placed periodically with a pitch of few micrometers can eXcite standing Bulk Acoustic shear wave Resonances (XBARs), by means of lateral electric field parallel to crystalline Y- axis ...

IEEE2019

Analysis of XBAR resonance and higher order spurious modes

Luis Guillermo Villanueva Torrijo, Soumya Yandrapalli, Victor Plessky

A suspended 400nm thin mono-crystalline ZY cut Lithium Niobate (LN) membrane with narrow interdigital electrodes (IDEs) on top having a pitch of the order of few microns excites standing shear bulk acoustic wave resonance (XBAR) within the membrane through ...

IEEE2019

Fabrication Of Lithium Niobate Bulk Acoustic Resonator For 5G Filters

Luis Guillermo Villanueva Torrijo, Annalisa De Pastina, Soumya Yandrapalli, Victor Plessky, Muhammad Faizan

This work presents the fabrication of a MEMS resonant device which addresses the need for high quality and miniaturized RF filters in the 3-6 GHz range for 5th generation (5G) mobile networks. The 4-mask fabrication process is based on the definition of in ...

IEEE2019

Three-Dimensional Nano-Acoustic Bragg Reflectors for CMOS Embedded NEMS

Luis Guillermo Villanueva Torrijo, Soumya Yandrapalli, David Ruffieux

Integration of CMOS electronic circuits and electromechanical resonators has been pursued for a long time by many different research groups and even foundries. This would improve the overall performance of electromechanical oscillators and sensors. However ...

Institute of Electrical and Electronics Engineers2017

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