公开(公告)号：US20230361742A1

公开(公告)日：2023-11-09

申请号：US18196202

申请日：2023-05-11

Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： Alexander Figotin ,  Filippo Capolino

IPC: H03H7/00

CPC classification number: H03H7/002

Abstract: Disclosed are example embodiments of a circuit comprising a first inductor-capacitor (LC) loop, a second LC loop having at least one of a series connection or parallel connection to the first LC loop, and a gyrator coupled between the first LC loop and the second LC loop. In an example, the first LC and the second LC loop each include an inductive element (L) and a capacitive (C) element coupled to each other in series. In another example, the first LC and the second LC loop each include an inductive element (L) and a capacitive (C) element coupled to each other in parallel.

公开(公告)号：US20250167730A1

公开(公告)日：2025-05-22

申请号：US18961804

申请日：2024-11-27

Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： Filippo Capolino ,  Alireza Nikzamir

IPC: H03B5/02 ,  H03B5/12 ,  H03B5/18

Abstract: Some embodiments relate to systems and methods for electronic circuits configured to operate at or near an exceptional point of degeneracy (EPD). An electronic system includes an electronic circuit configured to operate approximately at an EPD. The electronic circuit includes an active component that, via an instability, brings the system to self-oscillations, wherein a second component of the circuit is perturbed leading to high sensitivity to such perturbation.

公开(公告)号：US20220057440A1

公开(公告)日：2022-02-24

申请号：US17408071

申请日：2021-08-20

Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： Filippo Capolino ,  Hamidreza Kazemi Varnamkhasti

IPC: G01R23/02 ,  H03B5/08

Abstract: Disclosed herein is an exceptional points of degeneracy (EPD) system with a resonator by introducing a linear time-periodic variation. In contrast, prior art systems with EPD require two coupled resonators with precise values of gain and loss and a precise symmetry of inductances and capacitances. The disclosed EPD system only requires the tuning of the modulation frequency or modulation depth, which can be easily achieved in electronic systems. The EPD is a point in a system parameters' space at which two or more eigenstates coalesce, and this leads to unique properties not occurring at other non-degenerate operating points. Also disclosed are experimental data showing the existence of a second order EPD in a time-varying single resonator and the expected sensitivity of its resonances to circuit perturbations. The disclosed EPD system exhibits structural degenerate and non-degenerate resonances whose dynamics dramatically boosts its sensitivity performance to very small perturbations. The unique sensitivity induced by an EPD can be employed to create exceptionally-sensitive sensors based on a resonator by simply applying time modulation.

公开(公告)号：US11921136B2

公开(公告)日：2024-03-05

申请号：US17408071

申请日：2021-08-20

Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： Filippo Capolino ,  Hamidreza Kazemi Varnamkhasti

IPC: G01R23/02 ,  H03B5/08

CPC classification number: G01R23/02 ,  H03B5/08 ,  H03B2200/004

Abstract: Disclosed herein is an exceptional points of degeneracy (EPD) system with a resonator by introducing a linear time-periodic variation. In contrast, prior art systems with EPD require two coupled resonators with precise values of gain and loss and a precise symmetry of inductances and capacitances. The disclosed EPD system only requires the tuning of the modulation frequency or modulation depth, which can be easily achieved in electronic systems. The EPD is a point in a system parameters' space at which two or more eigenstates coalesce, and this leads to unique properties not occurring at other non-degenerate operating points. Also disclosed are experimental data showing the existence of a second order EPD in a time-varying single resonator and the expected sensitivity of its resonances to circuit perturbations. The disclosed EPD system exhibits structural degenerate and non-degenerate resonances whose dynamics dramatically boosts its sensitivity performance to very small perturbations. The unique sensitivity induced by an EPD can be employed to create exceptionally-sensitive sensors based on a resonator by simply applying time modulation.

公开(公告)号：US20240171222A1

公开(公告)日：2024-05-23

申请号：US18283975

申请日：2022-03-22

Applicant: The Regents of the University of California

Inventor： Filippo Capolino ,  Ender Ayanoglu ,  Arnold Lee Swindlehurst

IPC: H04B7/04

CPC classification number: H04B7/04013

Abstract: Wave-controlled reconfigurable intelligent surfaces in accordance with embodiments of the invention are disclosed. In one embodiment, a wave-controlled reconfigurable intelligent surface for wireless communication may include a first layer comprising a plurality of unit cells devoted to providing local reflection properties via one or more tuning components in each unit cell of the plurality of unit cells, a system of one or more biasing transmission lines configured to provide control, and where at least one transmission line is configured for biasing the one or more tuning components using at least one full-domain basis function.

公开(公告)号：US11162902B2

公开(公告)日：2021-11-02

申请号：US16112608

申请日：2018-08-24

Applicant: The Regents of the University of California

Inventor： Regina Ragan ,  Filippo Capolino ,  William Thrift

IPC: G01N21/65 ,  B01L3/00 ,  G06N20/00 ,  C12Q1/04 ,  C25D13/22 ,  C25D13/02 ,  C25D13/04

Abstract: Nanoarchitectures comprised of subwavelength metal nanosphere oligomers with uniform narrow gap spacings for plasmonic and metamaterial devices are described, as well as methods of fabrication thereof, a biosensor system based thereon, and methods of detection of pathogenic or other organisms (e.g., bacteria) using the same.

公开(公告)号：US20190064074A1

公开(公告)日：2019-02-28

申请号：US16112608

申请日：2018-08-24

Applicant: The Regents of the University of California

Inventor： Regina Ragan ,  Filippo Capolino ,  William Thrift

IPC: G01N21/65 ,  B01L3/00 ,  G06N99/00

Abstract: Nanoarchitectures comprised of subwavelength metal nanosphere oligomers with uniform narrow gap spacings for plasmonic and metamaterial devices are described, as well as methods of fabrication thereof, a biosensor system based thereon, and methods of detection of pathogenic or other organisms (e.g., bacteria) using the same.