CAVITY FILTER AND CONNECTING STRUCTURE INCLUDED THEREIN

    公开(公告)号:US20240332766A1

    公开(公告)日:2024-10-03

    申请号:US18676458

    申请日:2024-05-28

    申请人: KMW INC.

    摘要: The present invention relates to a cavity filter. The cavity filter includes: an RF signal connecting portion spaced apart, by a predetermined distance, from an outer member having an electrode pad provided on a surface thereof; and a terminal portion configured to electrically connect the electrode pad of the outer member and the RF signal connecting portion so as to absorb assembly tolerance existing at the predetermined distance and to prevent disconnection of the electric flow between the electrode pad and the RF signal connecting portion, wherein the terminal portion is divided into a first side terminal contacted with the electrode pad and a second side terminal connected to the RF signal connecting portion, absorbs the assembly tolerance existing in a terminal insertion port, in which the terminal portion is provided, through an elastic member provided between the first side terminal and the second side terminal, and prevents disconnection of an electric flow, thereby preventing degradation in performance of an antenna device.

    Band pass filter and high frequency front-end circuit including same

    公开(公告)号:US12107312B2

    公开(公告)日:2024-10-01

    申请号:US17981603

    申请日:2022-11-07

    发明人: Masayuki Kikuda

    IPC分类号: H01P1/208 H01P1/20 H01P1/205

    摘要: A band pass filter includes a dielectric substrate, conductor plates, a ground via, waveguide resonators, and a trap resonator. The conductor plates are inside the dielectric substrate and opposed to each other. The ground via connects the conductor plates together. The waveguide resonators are coupled in series in a space between the conductor plates along a principal coupling path from an input terminal to an output terminal. Waveguide resonators adjacent along the principal coupling path are subjected to inductive coupling. The trap resonator couples waveguide resonators in two pairs included in the waveguide resonators as jumping over a portion of the principal coupling path, and capacitive couples the waveguide resonators included in each of the pairs.

    Band-stop filter and electronic device

    公开(公告)号:US12034195B2

    公开(公告)日:2024-07-09

    申请号:US17727441

    申请日:2022-04-22

    摘要: This application relates to the field of communications component technologies, and provides a band-stop filter and an electronic device. The band-stop filter includes: a waveguide transmission line, configured to transmit electromagnetic waves; and a plurality of dielectric resonance units, sequentially arranged along an extension track of the waveguide transmission line, and configured to be coupled to the waveguide transmission line, where the dielectric resonance units each include at least one dielectric resonator; the dielectric resonator includes a first dielectric block and a first conductive layer covering an outer surface of the first dielectric block; and a first surface of the first dielectric block has a blind hole, and the first conductive layer covers an inner surface of the blind hole; where a dielectric constant of a material that forms the first dielectric block is greater than 1.

    Cavity filter comprising a terminal portion having first and second conductive terminals with an elastic member disposed there between

    公开(公告)号:US12027740B2

    公开(公告)日:2024-07-02

    申请号:US17118720

    申请日:2020-12-11

    申请人: KMW INC.

    摘要: The present invention relates to a cavity filter. The cavity filter includes: an RF signal connecting portion spaced apart, by a predetermined distance, from an outer member having an electrode pad provided on a surface thereof; and a terminal portion configured to electrically connect the electrode pad of the outer member and the RF signal connecting portion so as to absorb assembly tolerance existing at the predetermined distance and to prevent disconnection of the electric flow between the electrode pad and the RF signal connecting portion, wherein the terminal portion is divided into a first side terminal contacted with the electrode pad and a second side terminal connected to the RF signal connecting portion, absorbs the assembly tolerance existing in a terminal insertion port, in which the terminal portion is provided, through an elastic member provided between the first side terminal and the second side terminal, and prevents disconnection of an electric flow, thereby preventing degradation in performance of an antenna device.

    Cavity filter and connecting structure included therein

    公开(公告)号:US11967749B2

    公开(公告)日:2024-04-23

    申请号:US17974645

    申请日:2022-10-27

    申请人: KMW INC.

    IPC分类号: H01P1/208 H01P1/213 H01R13/24

    摘要: The present invention relates to a cavity filter and a connecting structure included therein. The cavity filter includes: an RF signal connecting portion spaced apart, by a predetermined distance, from an outer member having an electrode pad provided on a surface thereof; and a terminal portion configured to electrically connect the electrode pad of the outer member and the RF signal connecting portion so as to absorb assembly tolerance existing at the predetermined distance and to prevent disconnection of the electric flow between the electrode pad and the RF signal connecting portion, wherein the terminal portion includes: a first side terminal contacted with the electrode pad; and a second side terminal having a housing space in which a part of the first side terminal is housed, and connected to the RF signal connecting portion, wherein the first side terminal is provided as an elastic deformable body whose part is radially widened or narrowed against an assembly force provided by an assembler. Therefore, the cavity filter can efficiently absorb assembly tolerance which occurs through assembly design, and prevent disconnection of an electric flow, thereby preventing degradation in performance of an antenna device.