Zobrazeno 1 - 10
of 716
pro vyhledávání: '"Campbell, Joshua"'
Energy arbitrage is one of the most profitable sources of income for battery operators, generating revenues by buying and selling electricity at different prices. Forecasting these revenues is challenging due to the inherent uncertainty of electricit
Externí odkaz:
http://arxiv.org/abs/2410.20005
Autor:
Anderson, Ian, Hsu, Tzu-Hsuan, Chulukhadze, Vakhtang, Kramer, Jack, Cho, Sinwoo, Barrera, Omar A., Campbell, Joshua, Li, Ming-Huang, Lu, Ruochen
This paper presents surface acoustic wave (SAW) acoustic delay lines (ADL) for studying propagation loss mechanisms in Lithium Niobate (LN). Devices were fabricated by depositing 50 nm aluminum patterns on 600 nm X-Cut LN on amorphous silicon on sili
Externí odkaz:
http://arxiv.org/abs/2409.14272
Autor:
Barrera, Omar, Ravi, Nishanth, Saha, Kapil, Dasgupta, Supratik, Campbell, Joshua, Kramer, Jack, Kwon, Eugene, Hsu, Tzu-Hsuan, Cho, Sinwoo, Anderson, Ian, Simeoni, Pietro, Hou, Jue, Rinaldi, Matteo, Goorsky, Mark S., Lu, Ruochen
Publikováno v:
Journal of Microelectromechanical Systems, 2024
This work reports an acoustic solidly mounted resonator (SMR) at 18.64 GHz, among the highest operating frequencies reported. The device is built in scandium aluminum nitride (ScAlN) on top of silicon dioxide (SiO2) and tantalum pentoxide (Ta2O5) Bra
Externí odkaz:
http://arxiv.org/abs/2407.02741
Autor:
Chulukhadze, Vakhtang, Kramer, Jack, Hsu, Tzu-Hsuan, Barrera, Omar, Anderson, Ian, Cho, Sinwoo, Campbell, Joshua, Lu, Ruochen
As 5G connectivity proliferates, signal processing applications at 6G centimeter bands have gained attention for urban wireless capacity expansion. At sub-5 GHz, acoustic resonators operating in the fundamental symmetric (S0) Lamb mode hold significa
Externí odkaz:
http://arxiv.org/abs/2405.08139
Acoustic devices offer significant advantages in size and loss, making them ubiquitous for mobile radio frequency signal processing. However, the usable bandwidth is often limited to the achievable electromechanical coupling, setting a hard limit usi
Externí odkaz:
http://arxiv.org/abs/2405.08132
Advancing robotic grasping and manipulation requires the ability to test algorithms and/or train learning models on large numbers of grasps. Towards the goal of more advanced grasping, we present the Grasp Reset Mechanism (GRM), a fully automated app
Externí odkaz:
http://arxiv.org/abs/2402.18650
Publikováno v:
Journal of Microelectromechanical Systems, 2024, Early Access
In this work, we demonstrate a C-band shear-horizontal surface acoustic wave (SH-SAW) resonator with high electromechanical coupling (kt2) of 22% and a quality factor (Q) of 565 based on a thin-film lithium niobate (LN) on silicon carbide (SiC) platf
Externí odkaz:
http://arxiv.org/abs/2402.16732
Autor:
Cho, Sinwoo, Barrera, Omar, Kramer, Jack, Chulukhadze, Vakhtang, Hsu, Tzu-Hsuan, Campbell, Joshua, Anderson, Ian, Lu, Ruochen
Publikováno v:
IEEE Microwave and Wireless Technology Letters, vol. 34, no. 4, pp. 391-394, April 2024
This paper reports the first piezoelectric acoustic filter in periodically poled piezoelectric film (P3F) lithium niobate (LiNbO3) at 23.8 GHz with low insertion loss (IL) of 1.52 dB and 3-dB fractional bandwidth (FBW) of 19.4%. The filter features a
Externí odkaz:
http://arxiv.org/abs/2402.12194
Autor:
Hsu, Tzu-Hsuan, Campbell, Joshua, Kramer, Jack, Cho, Sinwoo, Lee, Zhi-Qiang, Li, Ming-Huang, Lu, Ruochen
Publikováno v:
2024 IEEE MTT-S International Conference on Microwave Acoustics & Mechanics (IC-MAM), Chengdu, China, 2024, pp. 117-120
In this work, we investigate the frequency scaling of shear-horizontal (S.H.) surface acoustic wave (SAW) resonators based on a lithium niobate on insulator (LNOI) substrate into the centimeter bands for 6G wireless systems. Prototyped resonators wit
Externí odkaz:
http://arxiv.org/abs/2402.11508
Autor:
Cho, Sinwoo, Barrera, Omar, Simeoni, Pietro, Wang, Ellie Y., Kramer, Jack, Chulukhadze, Vakhtang, Campbell, Joshua, Rinaldi, Matteo, Lu, Ruochen
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 (Pt) electrodes. FBARs with combinations of Pt and aluminum (Al) electro
Externí odkaz:
http://arxiv.org/abs/2311.13448