activity
20232026
most citedThin-Film Lithium Niobate Acoustic Resonator with High Q of 237 and k2 of 5.1% at 50.74 GHz

46 citations · 98 across the 13 of their papers we have counts for

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11 papers · 1 filter

eess.SP2025

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…

eess.SP2025

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…

eess.SP2025

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…

eess.SP2025

Practical Demonstrations of FR3-Band Thin-Film Lithium Niobate Acoustic Filter Design

Taran Anusorn, Omar Barrera, Jack Kramer +4

This article presents an approach to control the operating frequency and fractional bandwidth (FBW) of miniature acoustic filters in thin-film lithium niobate (TFLN). More specific…

eess.SP2023

Millimeter Wave Thin-Film Bulk Acoustic Resonator in Sputtered Scandium Aluminum Nitride Using Platinum Electrodes

Sinwoo Cho, Omar Barrera, Pietro Simeoni +6

This work describes sputtered scandium aluminum nitride (ScAlN) thin-film bulk acoustic resonators (FBAR) at millimeter wave (mmWave) with high quality factor (Q) using platinum (P…

eess.SP2023

Transferred Thin Film Lithium Niobate as Millimeter Wave Acoustic Filter Platforms

Omar Barrera, Sinwoo Cho, Kenny Hyunh +6

This paper reports the first high-performance acoustic filters toward millimeter wave (mmWave) bands using transferred single-crystal thin film lithium niobate (LiNbO3). By transfe…