11 papers
Nonlinear Characterization of Thin-Film LiNbO3 Acoustic Filters
Omar Barrera, Bryan T. Bosworth, Taran Anusorn +10
Compact, high-performance components in millimeter-wave (mmWave) communication systems demand new acoustic filter technology at increasingly higher frequencies. Among various promi…
50 GHz Piezoelectric Acoustic Filter
Omar Barrera, Jack Kramer, Lezli Matto +5
This paper presents significant frequency scaling of acoustic filter technology to 50 GHz. This achievement is enabled by the P3F LiNbO3 multilayer stack, in which piezoelectric th…
Non-reciprocal electrooptic intermodal scattering with momentum engineered RF waves
Jieun Yim, Gwan In Kim, Violet Workman +4
Spatiotemporal modulation approaches have been often employed as alternatives for producing optical non-reciprocity without magneto-optic materials. Unidirectional inter-modal scat…
19.3 GHz Acoustic Filter with High Close-in Rejection in Tri-layer Thin-Film Lithium Niobate
Omar Barrera, Sinwoo Cho, Jack Kramer +3
Acoustic filters are preferred front-end solutions at sub-6 GHz due to their superior frequency selectivity compared to electromagnetic (EM) counterparts. With the ongoing developm…
62.6 GHz ScAlN Solidly Mounted Acoustic Resonators
Yinan Wang, Byeongjin Kim, Nishanth Ravi +13
We demonstrate a record-high 62.6 GHz solidly mounted acoustic resonator (SMR) incorporating a 67.6 nm scandium aluminum nitride (Sc0.3Al0.7N) piezoelectric layer on a 40 nm buried…
An 11.7-GHz ScAlN FBAR Filter: Case Study on Scaling Limits and Challenges
Sinwoo Cho, Byeongjin Kim, Lezli Matto +9
This paper reports an 11.7 GHz compact 50 ohm ladder filter based on single layer Scandium Aluminum Nitride (ScAlN) film bulk acoustic resonators (FBARs) with platinum (Pt) electro…