Patents by Inventor Xuanyi ZHAO

Xuanyi ZHAO has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12255603
    Abstract: A microelectromechanical resonator device is provided having two-dimensional resonant rods. The resonator device has a piezoelectric layer formed with a plurality of alternating rods and trenches. A bottom electrode is in contact with a bottom surface of the piezoelectric layer. A top electrode metal grating of conductive strips is aligned in contact with corresponding rods of the piezoelectric layer.
    Type: Grant
    Filed: October 10, 2023
    Date of Patent: March 18, 2025
    Assignee: Northeastern University
    Inventors: Cristian Cassella, Xuanyi Zhao
  • Publication number: 20240380384
    Abstract: An on-chip acoustic delay line (ADL) for operation in the radio frequency (RF) range uses a two-dimensional array of resonant rods and a piezoelectric layer having corrugated structure. The ADL has one or more programmable passband frequencies which are determined by the lithographically-defined artificial dispersive characteristics of acoustic metamaterials formed by forests of the locally resonant rods and selectable attached matching networks. The ADL devices offer exceptionally high fractional bandwidth and low insertion loss. The ADL can be used in self-interference cancellation networks to provide full duplex radio.
    Type: Application
    Filed: September 28, 2022
    Publication date: November 14, 2024
    Inventors: Cristian CASSELLA, Onurcan KAYA, Xuanyi ZHAO
  • Publication number: 20240186981
    Abstract: Provided herein are acoustic material (AM) CMRs having an active region including a conductive plate suspended over a cavity in a substrate and anchored to the substrate by two y-anchors, a piezoelectric layer disposed on the conductive plate, and an interdigitated metal structure (IDT) to cause transduction for excitement of a longitudinal mode of vibration of the AM CMR; and a pair of AM reflectors (AMRs) forming lateral anchors anchored to the substrate and attached to opposite sides of the conductive plate along the direction of vibration of the AM CMR, the AMRs each including a conductive anchor plate suspended over the cavity in the substrate, and a piezoelectric layer disposed on the conductive plate, and a parallel array of rods disposed on the piezoelectric layer, wherein the AMRs are configured to generate an acoustic stopband for inhibiting lateral leakage of the excited longitudinal mode of vibration.
    Type: Application
    Filed: July 6, 2023
    Publication date: June 6, 2024
    Inventors: Cristian CASSELLA, Xuanyi ZHAO, Onurcan KAYA
  • Publication number: 20240039504
    Abstract: A microelectromechanical resonator device is provided having two-dimensional resonant rods. The resonator device has a piezoelectric layer formed with a plurality of alternating rods and trenches. A bottom electrode is in contact with a bottom surface of the piezoelectric layer. A top electrode metal grating of conductive strips is aligned in contact with corresponding rods of the piezoelectric layer.
    Type: Application
    Filed: October 10, 2023
    Publication date: February 1, 2024
    Inventors: Cristian CASSELLA, Xuanyi ZHAO
  • Patent number: 11784623
    Abstract: A microelectromechanical resonator device is provided having two-dimensional resonant rods. The resonator device has a piezoelectric layer formed with a plurality of alternating rods and trenches. A bottom electrode is in contact with a bottom surface of the piezoelectric layer. A top electrode metal grating of conductive strips is aligned in contact with corresponding rods of the piezoelectric layer.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: October 10, 2023
    Assignee: Northeastern University
    Inventors: Cristian Cassella, Xuanyi Zhao
  • Publication number: 20210152146
    Abstract: A microelectromechanical resonator device is provided having two-dimensional resonant rods. The resonator device has a piezoelectric layer formed with a plurality of alternating rods and trenches. A bottom electrode is in contact with a bottom surface of the piezoelectric layer. A top electrode metal grating of conductive strips is aligned in contact with corresponding rods of the piezoelectric layer.
    Type: Application
    Filed: November 13, 2020
    Publication date: May 20, 2021
    Inventors: Cristian CASSELLA, Xuanyi ZHAO
  • Patent number: D992631
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: July 18, 2023
    Assignee: SHENZHEN HOLATEK CO., LTD.
    Inventors: Dilong He, Qianshang Chen, Luwei Ma, Yusen Wang, Haitian Wang, Enyang Zhu, Gang Zhao, Xuanyi Zhao