Waveguide filter formed by a casing and a cap fitted into the casing, where a tuning sheet is interposed between the cap and the casing

    公开(公告)号:US10530028B2

    公开(公告)日:2020-01-07

    申请号:US15818692

    申请日:2017-11-20

    申请人: KMW INC.

    发明人: In-Ho Na

    摘要: The present disclosure provides a waveguide filter including a casing configured to form a waveguide having a side wall, a part of which is formed with a through hole, a plurality of partitions configured to form resonance sections by partitioning an interior of the waveguide within the casing, a cap configured to have a body that is fitted within the through hole of the casing so as to define at least a part of an inner region of the waveguide, and to have a head formed to correspond to at least a part of a peripheral region around the through hole of the casing so that the head is coupled with the casing, and at least one tuning sheet configured to be held interposed between the head of the cap and the casing when coupled.

    BASE STATION DEVICE IN MOBILE COMMUNICATION SYSTEM

    公开(公告)号:US20170207835A1

    公开(公告)日:2017-07-20

    申请号:US15477611

    申请日:2017-04-03

    申请人: KMW INC.

    摘要: A base station apparatus of mobile communication system is provided, including an antenna system including first antenna for transceiving signals for a first path among MIMO paths, and a second antenna for transceiving signals for a second path among the MIMO paths, a first duplexer including transmission filter for processing the transmitted signal of first path and reception filter for processing the received signal of second path, a second duplexer including reception filter for processing the received signal of first path and transmission filter for processing the transmitted signal of second path, and a path change unit for providing the transmitted signal provided from the first duplexer to the first antenna and the received signal provided from the first antenna to the second duplexer and to provide the transmitted signal from the second duplexer to the second antenna and the received signal from the second antenna to the first duplexer.

    BASE STATION DEVICE IN MOBILE COMMUNICATION SYSTEM

    公开(公告)号:US20170207836A1

    公开(公告)日:2017-07-20

    申请号:US15477716

    申请日:2017-04-03

    申请人: KMW INC.

    摘要: A base station apparatus of mobile communication system is provided, including an antenna system including first antenna for transceiving signals for a first path among MIMO paths, and a second antenna for transceiving signals for a second path among the MIMO paths, a first duplexer including transmission filter for processing the transmitted signal of first path and reception filter for processing the received signal of second path, a second duplexer including reception filter for processing the received signal of first path and transmission filter for processing the transmitted signal of second path, and a path change unit for providing the transmitted signal provided from the first duplexer to the first antenna and the received signal provided from the first antenna to the second duplexer and to provide the transmitted signal from the second duplexer to the second antenna and the received signal from the second antenna to the first duplexer.