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    Dielectric Microwave Resonator Device with A Small Mode Volume
    2.
    发明公开
    Dielectric Microwave Resonator Device with A Small Mode Volume 审中-公开

    公开(公告)号：US20230369736A1

    公开(公告)日：2023-11-16

    申请号：US17743400

    申请日：2022-05-12

    申请人： Raytheon BBN Technologies, Corp.

    发明人： Moe D. Soltani ,  Ian Moore ,  Ken Dinndorf

    IPC分类号： H01P7/10 ,  H01P11/00

    CPC分类号： H01P7/10 ,  H01P11/008

    摘要： A microwave resonator device including a first resonator member comprised of a dielectric material and a second resonator member comprised of a dielectric material. The second resonator member can be positioned spatially offset from the first resonator member to define a spatial interaction region configured to confine an electromagnetic field in a microwave region of the electromagnetic spectrum. The spatial offset between the first resonator member and the second resonator member defining the spatial interaction region is less than the microwave wavelength associated with a resonant frequency of the microwave resonator device. The microwave resonator device facilitates generation of a resonant field enhancement within the spatial interaction region.

    OPTOELECTRONIC OSCILLATOR WITH TUNABLE FILTER
    3.
    发明申请
    OPTOELECTRONIC OSCILLATOR WITH TUNABLE FILTER 审中-公开

    公开(公告)号：US20180248518A1

    公开(公告)日：2018-08-30

    申请号：US15752797

    申请日：2016-08-19

    申请人： NANOWAVE TECHNOLOGIES INC.

    发明人： Charles William Tremlett NICHOLLS

    IPC分类号： H03B17/00 ,  H03H9/64 ,  H03J3/28 ,  G02F1/225

    CPC分类号： H03B17/00 ,  G01S7/292 ,  G01S13/524 ,  G02F1/2252 ,  G02F2/02 ,  G02F2001/212 ,  G02F2201/205 ,  H01P7/06 ,  H01P7/10 ,  H03B2200/0044 ,  H03B2200/0048 ,  H03B2200/009 ,  H03H9/6406 ,  H03J3/28

    摘要： An optoelectronic oscillator (OEO) is disclosed comprising an electronically tunable filter for transposing narrow pass band characteristics of a surface acoustic wave (SAW) filter to a microwave frequency to provide mode selection in the OEO. An OEO is disclosed comprising a set of optical domain components, a downconverter in communication with an output of the optical domain components, and a set of radio frequency (RF) domain components in communication with an output of the downconverter. The set of RF domain components comprises a tunable filter operating at a filter center frequency and having an output coupled to the set of optical domain components for communicating a mode selection result. The tunable filter including a tuner; and a sub-filter. The sub-filter operating at a fixed center frequency to provide mode selection and adjacent mode suppression with respect to the tunable filter center frequency. The sub-filter center frequency being lower than the tunable filter center frequency, and a ratio of the tunable filter center frequency to a bandwidth of the sub-filter being at least 1000:1.

    THREADLESS TUNING ELEMENTS FOR COAXIAL RESONATORS, AND METHOD FOR TUNING SAME
    4.
    发明申请
    THREADLESS TUNING ELEMENTS FOR COAXIAL RESONATORS, AND METHOD FOR TUNING SAME 审中-公开

    公开(公告)号：US20180212298A1

    公开(公告)日：2018-07-26

    申请号：US15742743

    申请日：2016-07-08

    申请人： KATHREIN-WERKE KG

    发明人： Maximilian OBERMAYER ,  Franz ROTTMOSER ,  Michael SPUNT

    IPC分类号： H01P7/04 ,  H01P1/202 ,  H01P1/213 ,  H01P7/10

    CPC分类号： H01P7/04 ,  H01P1/202 ,  H01P1/2133 ,  H01P7/10

    摘要： A high-frequency filter with a coaxial design has at least one resonator with a first inner conductor and an outer conductor housing. The outer conductor housing comprises a housing base, a housing cover which is arranged at a distance from the housing base, and a peripheral housing wall between the housing base and the housing cover. The first inner conductor is galvanically connected to the housing base and extends axially from the housing base in the direction of the housing cover. The resonator comprises a second internal conductor which is galvanically connected to the housing cover and extends axially from the housing cover in the direction of the housing base. The first and/or second inner conductor has an inner conductor bore, and a tuning element is arranged in one inner conductor bore in a thread-free axially movable manner. The tuning element is arranged in a sleeve or bushing and optionally or in addition thereto has an enlarged elastic region.

    DIELECTRIC RESONATOR, DIELECTRIC FILTER, AND FABRICATION METHOD
    8.
    发明申请
    DIELECTRIC RESONATOR, DIELECTRIC FILTER, AND FABRICATION METHOD 审中-公开

    公开(公告)号：US20170365904A1

    公开(公告)日：2017-12-21

    申请号：US15691246

    申请日：2017-08-30

    申请人： Huawei Technologies Co., Ltd.

    发明人： Bengui YUAN ,  Qiang WANG

    IPC分类号： H01P1/205 ,  H01P7/04 ,  H01P7/06 ,  H01P7/10

    CPC分类号： H01P1/2056 ,  H01P7/04 ,  H01P7/06 ,  H01P7/10

    摘要： The present application provides a dielectric resonator, a dielectric filter, a base station and a method for fabricating the dielectric resonator or the dielectric filter. The dielectric resonator includes: a solid dielectric resonator body, a blind hole located on one side of the solid dielectric resonator body, a metalized layer covering both a surface of the solid dielectric resonator body and a surface of the blind hole, and a demetallized notch located at the metalized layer on the surface of the blind hole. The dielectric resonator provided in the present application can implement tuning of the dielectric resonator, and reduce impact on the resonance frequency of the dielectric resonator after the dielectric resonator is tuned, where the impact caused by that the demetallized notch is covered by a metal material in an assembly process of the dielectric resonator, and signal energy that is leaked from the notch is reduced.

    DIELECTRIC FILTER
    9.
    发明申请
    DIELECTRIC FILTER 审中-公开

    公开(公告)号：US20170365902A1

    公开(公告)日：2017-12-21

    申请号：US15620053

    申请日：2017-06-12

    申请人： TDK CORPORATION

    发明人： Yuta ASHIDA ,  Kazunari KIMURA ,  Shigemitsu TOMAKI

    IPC分类号： H01P1/20 ,  H01P7/10

    CPC分类号： H01P1/2002 ,  H01P1/20309 ,  H01P1/2084 ,  H01P7/10

    摘要： A dielectric filter includes: a resonator body formed of dielectric material; surrounding dielectric portion present around the resonator body and formed of dielectric material having a relative permittivity lower than the dielectric material used to form the resonator body; and an input/output conductor portion formed of a conductor and configured to perform at least one supply of an electromagnetic wave to the resonator body and reception of an electromagnetic wave from the resonator body. The resonator body has a first end face and a second end face located at opposite ends in a first direction. The input/output conductor portion is located either at least part of the input/output conductor portion is contained in a space formed by shifting a virtual plane corresponding to the first end face in the first direction away from the second end face, or the input/output conductor portion is in contact with the space.