公开(公告)号：US20250096447A1

公开(公告)日：2025-03-20

申请号：US18888559

申请日：2024-09-18

Applicant: Nokia Solutions and Networks Oy

Inventor： Efstratios DOUMANIS

IPC: H01P1/207 ,  H04B1/10

Abstract: The present subject matter relates to a resonator comprising a chamber comprising a first wall, a second wall opposite the first wall, and side walls; a first cylinder grounded on one of the first and second walls and extending into the chamber; a second cylinder which is coaxial with the first cylinder and grounded on the other wall of the first and second walls and extending into the chamber; a tuner being coaxial with the second cylinder and grounded on the bottom of the first cylinder; and a dielectric tube is configured to circumscribe the tuner along an overlap length.

公开(公告)号：US20230395964A1

公开(公告)日：2023-12-07

申请号：US18033845

申请日：2021-10-22

Applicant: Nokia Solutions and Networks Oy

Inventor： Efstratios DOUMANIS

IPC: H01P7/06 ,  H01P11/00

CPC classification number: H01P7/06 ,  H01P11/008

Abstract: A resonator is described including: a first part of a metal cavity; a first ring extending from the first part of the metal cavity, wherein at least part of an external surface of the first supporting ring is coated with a first metal coating that provides an electrical connection to the metal cavity; a second part of the metal cavity; and a ceramic ring extending from the second part of the metal cavity. At least part of an external surface of the ceramic ring is coated with a second metal coating that provides an electrical connection to the metal cavity, wherein the first and second parts are mounted to form the metal cavity such that the first ring and the ceramic ring partially overlap such that at least part of the ceramic ring is between at least parts of the first and second metal coatings.

公开(公告)号：US20210234271A1

公开(公告)日：2021-07-29

申请号：US17158135

申请日：2021-01-26

Applicant: NOKIA SOLUTIONS AND NETWORKS OY

Inventor： Efstratios DOUMANIS ,  Murat Emre ERMUTLU

IPC: H01Q5/15 ,  H01Q5/47 ,  H01Q13/18

Abstract: An antenna system including a ground plane, an antenna radiator separated from and overlapping the ground plane and at least one first conductive element extending the antenna radiator towards the ground plane. The antenna system also includes at least one feed element configured to provide a radio-frequency feed for the antenna radiator. The feed element is spatially separated from the first conductive element and the antenna radiator.

公开(公告)号：US20220166133A1

公开(公告)日：2022-05-26

申请号：US17533418

申请日：2021-11-23

Applicant: NOKIA SOLUTIONS AND NETWORKS OY

Inventor： Efstratios DOUMANIS ,  Murat Emre ERMUTLU

IPC: H01Q1/52 ,  H01Q5/10 ,  H04W84/20

Abstract: An antenna system comprising: a ground plane; an antenna radiator separated from and overlapping the ground plane; at least one feed element configured to provide a radio-frequency feed for the antenna radiator; and at least one resonator coupled to the feed element and positioned in a space between the ground plane and the antenna radiator, wherein the antenna radiator is a broadband antenna radiator having a first operational range of frequencies and the resonator is a narrow band resonator having a second range of resonant frequencies that at least partially lie within the first operational range of frequencies.