Patents by Inventor Qingnan Meng
Qingnan Meng 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).
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Patent number: 11942672Abstract: Some embodiments of the present disclosure provide a cavity high-Q triple-mode dielectric resonance structure and a filter with the resonance structure. The resonance structure includes a cavity and a cover plate, wherein an arrangement inside the cavity includes a cube-like dielectric resonance block and a dielectric support frame; the cube-like dielectric resonance block and the dielectric support frame form a triple-mode dielectric resonance rod; between the triple-mode dielectric resonance rod and an inner wall of the cavity is air; one or any end of the cube-like dielectric resonance block is connected with the dielectric support frame respectively; the dielectric support frame is connected with the inner wall of the cavity; and the cube-like dielectric resonance block forms a triple-mode resonance in three directions of axes X, Y and Z of the cavity.Type: GrantFiled: December 29, 2018Date of Patent: March 26, 2024Assignee: HONGKONG FINGU DEVELOPMENT COMPANY LIMITEDInventor: Qingnan Meng
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Publication number: 20240030582Abstract: Disclosed are a high-Q multi-mode dielectric resonant structure and a dielectric filter. The high-Q multi-mode dielectric resonant structure includes a cavity, a dielectric support frame, a dielectric resonator and a cover plate, and the cavity is formed by a sealed space, herein one surface of the cavity is a cover plate surface; the dielectric resonator is formed by a medium; and the dielectric support frame is mounted in any positions between the dielectric resonator and an inner wall of the cavity, matched with any shapes of the dielectric resonator and the cavity and fixed by connecting, and the ratio of the dimension of the inner wall of the cavity to the corresponding dimension of the dielectric resonator corresponding to three axial directions thereof is between 1.01-4.5.Type: ApplicationFiled: May 28, 2021Publication date: January 25, 2024Inventor: Qingnan MENG
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Publication number: 20230344108Abstract: The present application provides a dielectric resonant structure for controlling harmonic distances, including a cavity, a support frame, a dielectric resonator and a cover plate, wherein the cavity is composed of a sealed space, and one surface of the cavity is a cover plate surface; the dielectric resonator is composed of a dielectric; the dielectric resonator is installed in the cavity; and the support frame is installed at any position between the dielectric resonator and an inner wall of the cavity, matches any shape of the dielectric resonator and the cavity, and is connected to, fixed with, and supported the dielectric resonator. The dielectric resonator is partially provided with a blind slot, a through slot, a blind hole or a through hole, or is provided with a protrusion on its surface, so as to change the span of frequency between a fundamental mode and the span of frequency high-order mode or between the high-order mode and a higher-order mode.Type: ApplicationFiled: May 24, 2021Publication date: October 26, 2023Inventor: Qingnan MENG
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Patent number: 11735801Abstract: The disclosure provides a high-Q triple-mode cavity dielectric resonant hollow structure and a filter with the dielectric resonant structure. The structure includes a cavity and a cover plate, wherein the cavity is internally provided with a cube-like dielectric resonance block and a dielectric support frame; the cube-like dielectric resonance block and the dielectric support frame form a triple-mode dielectric resonance rod; air is arranged between the triple-mode dielectric resonance rod and an inner wall of the cavity; one end or any end of the cube-like dielectric resonance block is connected with the dielectric support frame respectively; the dielectric support frame is connected with an inner wall of the cavity; and the cube-like dielectric resonance block forms triple-mode resonance in directions of X, Y and Z-axes of the cavity.Type: GrantFiled: December 29, 2018Date of Patent: August 22, 2023Assignee: HONGKONG FINGU DEVELOPMENT COMPANY LIMITEDInventor: Qingnan Meng
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Patent number: 11688920Abstract: The disclosure discloses a concave triple-mode cavity resonance structure and a filter with the resonance structure. The structure comprises a cavity and a cover plate, wherein the cavity is internally provided with a dielectric resonance block and a dielectric support frame; at least one end face of the cavity and/or the dielectric response block is concave; the dielectric resonance block and the dielectric support frame form a triple-mode dielectric resonance rod; one end or any end of the cube-like dielectric resonance block is connected with the dielectric support frame; the dielectric support frame is connected with an inner wall of the cavity; and the dielectric response block and the dielectric support frame form triple-mode resonance in three directions along the X, Y and Z axes of the cavity.Type: GrantFiled: December 29, 2018Date of Patent: June 27, 2023Assignee: HONGKONG FINGU DEVELOPMENT COMPANY LIMITEDInventor: Qingnan Meng
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Publication number: 20230170154Abstract: An MEMS structure-based adjustable capacitor is provided, comprising: a lower plate A, a movable plate B, an upper plate C, a fixed apparatus D and one or more connecting conductors E; a lower end of the fixed apparatus D is fixedly connected to the lower plate A, an upper end of the fixed apparatus D is fixedly connected to the upper plate C, a structure B4 is provided at a middle part of movable plate B, and the movable plate B is able to move up and down along the fixed apparatus D; the lower plate A is provided with a lower electrode A1, and the movable plate B is provided with a movable electrode B1 and adjustment electrodes B2; the lower electrode A1 and the movable electrode B1 constitute a unit capacitor; and the upper plate C is provided with an upper electrode C1 and adjustment electrodes C2.Type: ApplicationFiled: August 24, 2020Publication date: June 1, 2023Inventor: Qingnan MENG
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Publication number: 20220352612Abstract: Some embodiments of the present disclosure provide a cavity high-Q triple-mode dielectric resonance structure and a filter with the resonance structure. The resonance structure includes a cavity and a cover plate, wherein an arrangement inside the cavity includes a cube-like dielectric resonance block and a dielectric support frame; the cube-like dielectric resonance block and the dielectric support frame form a triple-mode dielectric resonance rod; between the triple-mode dielectric resonance rod and an inner wall of the cavity is air; one or any end of the cube-like dielectric resonance block is connected with the dielectric support frame respectively; the dielectric support frame is connected with the inner wall of the cavity; and the cube-like dielectric resonance block forms a triple-mode resonance in three directions of axes X, Y and Z of the cavity.Type: ApplicationFiled: December 29, 2018Publication date: November 3, 2022Inventor: Qingnan MENG
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Patent number: 11258150Abstract: The disclosure discloses an outwardly protruding triple-mode cavity resonance structure and a filter with the resonance structure. The structure includes a cavity (1) and a cover plate, wherein the cavity (1) is internally provided with a dielectric resonance block (2) and a dielectric support frame (3); at least one end face of the cavity (1) and/or the dielectric response block (2) protrudes outwards; the dielectric resonance block (2) and the dielectric support frame (3) form a triple-mode dielectric resonance rod; one end or any end of the cube-like dielectric resonance block (2) is connected with the dielectric support frame (3); the dielectric support frame (3) is connected with an inner wall of the cavity (1); and the dielectric response block (2) forms triple-mode resonance in three directions along the X, Y and Z axes of the cavity.Type: GrantFiled: December 29, 2018Date of Patent: February 22, 2022Assignee: HONGKONG FINGU DEVELOPMENT COMPANY LIMITEDInventor: Qingnan Meng
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Patent number: 11239540Abstract: The disclosure discloses an irregular-shaped cavity multi-mode resonance structure and a filter with the resonance structure. The irregular-shaped cavity multi-mode resonance structure includes a cavity and a cover plate, wherein the cavity is internally provided with a dielectric resonance block and a dielectric support frame; at least one end face of the cavity is concave or convex, and at least one end face of the dielectric resonance block is convex or concave, the dielectric resonance block and the dielectric support frame form a triple-mode dielectric resonance rod; one end or any end of the cube-like dielectric resonance block is respectively connected with the dielectric support frame; the dielectric support frame is connected with an inner wall of the cavity; and the dielectric resonance block forms triple-mode resonance in three directions along the X, Y and Z axes of the cavity.Type: GrantFiled: December 29, 2018Date of Patent: February 1, 2022Assignee: HONGKONG FINGU DEVELOPMENT COMPANY LIMITEDInventor: Qingnan Meng
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Publication number: 20210328320Abstract: The disclosure discloses a concave triple-mode cavity resonance structure and a filter with the resonance structure. The structure comprises a cavity and a cover plate, wherein the cavity is internally provided with a dielectric resonance block and a dielectric support frame; at least one end face of the cavity and/or the dielectric response block is concave; the dielectric resonance block and the dielectric support frame form a triple-mode dielectric resonance rod; one end or any end of the cube-like dielectric resonance block is connected with the dielectric support frame; the dielectric support frame is connected with an inner wall of the cavity; and the dielectric response block and the dielectric support frame form triple-mode resonance in three directions along the X, Y and Z axes of the cavity.Type: ApplicationFiled: December 29, 2018Publication date: October 21, 2021Inventor: Qingnan MENG
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Publication number: 20210320391Abstract: The disclosure provides a high-Q triple-mode cavity dielectric resonant hollow structure and a filter with the dielectric resonant structure. The structure includes a cavity and a cover plate, wherein the cavity is internally provided with a cube-like dielectric resonance block and a dielectric support frame; the cube-like dielectric resonance block and the dielectric support frame form a triple-mode dielectric resonance rod; air is arranged between the triple-mode dielectric resonance rod and an inner wall of the cavity; one end or any end of the cube-like dielectric resonance block is connected with the dielectric support frame respectively; the dielectric support frame is connected with an inner wall of the cavity; and the cube-like dielectric resonance block forms triple-mode resonance in directions of X, Y and Z-axes of the cavity.Type: ApplicationFiled: December 29, 2018Publication date: October 14, 2021Inventor: Qingnan MENG
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Publication number: 20210257707Abstract: The disclosure discloses an outwardly protruding triple-mode cavity resonance structure and a filter with the resonance structure. The structure includes a cavity (1) and a cover plate, wherein the cavity (1) is internally provided with a dielectric resonance block (2) and a dielectric support frame (3); at least one end face of the cavity (1) and/or the dielectric response block (2) protrudes outwards; the dielectric resonance block (2) and the dielectric support frame (3) form a triple-mode dielectric resonance rod; one end or any end of the cube-like dielectric resonance block (2) is connected with the dielectric support frame (3); the dielectric support frame (3) is connected with an inner wall of the cavity (1); and the dielectric response block (2) forms triple-mode resonance in three directions along the X, Y and Z axes of the cavity.Type: ApplicationFiled: December 29, 2018Publication date: August 19, 2021Inventor: Qingnan MENG
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Publication number: 20210249750Abstract: The disclosure discloses an irregular-shaped cavity multi-mode resonance structure and a filter with the resonance structure. The irregular-shaped cavity multi-mode resonance structure includes a cavity and a cover plate, wherein the cavity is internally provided with a dielectric resonance block and a dielectric support frame; at least one end face of the cavity is concave or convex, and at least one end face of the dielectric resonance block is convex or concave, the dielectric resonance block and the dielectric support frame form a triple-mode dielectric resonance rod; one end or any end of the cube-like dielectric resonance block is respectively connected with the dielectric support frame; the dielectric support frame is connected with an inner wall of the cavity; and the dielectric resonance block forms triple-mode resonance in three directions along the X, Y and Z axes of the cavity.Type: ApplicationFiled: December 29, 2018Publication date: August 12, 2021Inventor: Qingnan MENG
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Publication number: 20150349819Abstract: An intermodulation cancellation device, including: a power coupler, a regulating module, a nonlinear device, and an input/output port. When in use, a part of a transmitted signal including an intermodulation signal is coupled from a passive device by the power coupler via the input/output port. The coupled transmitted signal is processed for a first time by the regulating module and the nonlinear device, reflected at an end of the intermodulation cancellation device, and then processed for a second time to produce a power signal including a second intermodulation cancellation signal. The second intermodulation cancellation signal of the power signal and the intermodulation signal of the transmitted signal of the passive device have the same frequency and level and opposite phases. The power signal is superimposed on the transmitted signal of the passive device and a superimposed signal is output to the passive device via the input/output port.Type: ApplicationFiled: August 6, 2015Publication date: December 3, 2015Inventor: Qingnan MENG
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Patent number: 9112456Abstract: An assembly structure of a power amplifier is provided. The assembly structure comprises at least two power amplifier modules, each power amplifier module comprises a heat-conducting board, an amplifier tube matching circuit board is assembled on the heat-conducting board; at least one radio frequency power amplifier tube is assembled on the amplifier tube matching circuit board, assembly directions of all the radio frequency power amplifier tubes are parallel to each other; the heat-conducting boards of adjacent two power amplifier modules are connected vertically along a transmission direction of the radio frequency signal. Comparing with the existing plane assembly technology, the application has a character of needing small assembly areas, which is adapted in an assembly environment with a certain height and small assembly areas.Type: GrantFiled: April 6, 2012Date of Patent: August 18, 2015Assignee: Wuhan Gewei Electronic Technology Co., Ltd.Inventor: Qingnan Meng
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Publication number: 20150048888Abstract: An assembly structure of a power amplifier is provided. The assembly structure comprises at least two power amplifier modules, each power amplifier module comprises a heat-conducting board, an amplifier tube matching circuit board is assembled on the heat-conducting board; at least one radio frequency power amplifier tube is assembled on the amplifier tube matching circuit board, assembly directions of all the radio frequency power amplifier tubes are parallel to each other; the heat-conducting boards of adjacent two power amplifier modules are connected vertically along a transmission direction of the radio frequency signal. Comparing with the existing plane assembly technology, the application has a character of needing small assembly areas, which is adapted in an assembly environment with a certain height and small assembly areas.Type: ApplicationFiled: April 6, 2012Publication date: February 19, 2015Applicant: Wuhan Gewei Electronic Technology Co., LtdInventor: Qingnan Meng
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Patent number: 8324965Abstract: The invention relates to a final stage three-way power combining amplifying circuit applied to power amplifier of a mobile communications base station system. The circuit includes at least a first power divider, a power combiner, a Doherty amplifier and a Class AB amplifier, as well as some transmission lines and phase-shift lines. A first output port of the first power divider is connected to a first input port of the power combiner via a first phase-shift line and the Doherty amplifier by concatenating them with transmission lines. A second output port of the first power divider is connected to an input terminal of a Class AB amplifier via a transmission line, an output terminal of the Class AB amplifier is connected to a second input port of the power combiner via a microstrip line, and the output terminal of the power combiner outputs an amplified radio frequency signal. The invention can meet the requirements of both high efficiency and low cost.Type: GrantFiled: January 15, 2010Date of Patent: December 4, 2012Assignee: Wuhan Gewei Electronic Technology Co., Ltd.Inventor: Qingnan Meng
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Publication number: 20110080215Abstract: The invention relates to a final stage three-way power combining amplifying circuit applied to power amplifier of a mobile communications base station system. The circuit includes at least a first power divider, a power combiner, a Doherty amplifier and a Class AB amplifier, as well as some transmission lines and phase-shift lines. A first output port of the first power divider is connected to a first input port of the power combiner via a first phase-shift line and the Doherty amplifier by concatenating them with transmission lines. A second output port of the first power divider is connected to an input terminal of a Class AB amplifier via a transmission line, an output terminal of the Class AB amplifier is connected to a second input port of the power combiner via a microstrip line, and the output terminal of the power combiner outputs an amplified radio frequency signal. The invention can meet the requirements of both high efficiency and low cost.Type: ApplicationFiled: January 15, 2010Publication date: April 7, 2011Applicant: WUHAN GEWEI ELECTRONIC TECHNOLOGY CO., LTD.Inventor: Qingnan Meng