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    • 1. 发明授权
    • Dielectric filter, dielectric duplexer, and communication equipment
    • 介质滤波器,介质双工器和通信设备
    • US06507250B1
    • 2003-01-14
    • US09374476
    • 1999-08-13
    • Hitoshi TadaHideyuki KatoMotoharu HiroshimaHaruo Matsumoto
    • Hitoshi TadaHideyuki KatoMotoharu HiroshimaHaruo Matsumoto
    • H01P1213
    • H01P1/2056H01P1/2136
    • A dielectric filter or a dielectric duplexer is provided which comprises a dielectric block in a substantially rectangular parallelepiped shape, having a pair of opposite parallel end-faces and plural sides extending between the paired opposite end-faces, one of the plural sides being a mounting face; plural resonator holes elongating through the inside of the dielectric block across the paired opposite end-faces; inner conductors provided on the inner walls of the plural resonator holes, respectively; an outer conductor provided on the outside of the dielectric block; input-output electrodes provided only on one of the paired opposite end-faces, separated from the outer conductor, and capacitance-coupled to the predetermined inner conductors, respectively; and conductive terminals for external connection, connected to the input-output electrodes, having at least portions thereof lying substantially in the same plane as the mounting face. In the dielectric filter or the dielectric duplexer, since input-output electrode are provided on the end-face of the dielectric block, not provided on the sides of the dielectric block, the deterioration of Q0, caused by the input-output electrodes, can be reduced. Accordingly, the insertion loss and the attenuation characteristics are improved.
    • 提供一种介质滤波器或介质双工器,其包括基本上为长方体形状的介质块,具有一对相对的平行端面和在所述一对相对端面之间延伸的多个侧面,所述多个侧面中的一个为安装 面对; 多个谐振器孔延伸穿过所述一对相对端面的所述介质块的内部; 分别设置在多个谐振器孔的内壁上的内部导体; 设置在介质块的外侧的外部导体; 输入输出电极仅设置在与外部导体分离的成对的相对端面中的一个上,并且电容耦合到预定的内部导体; 和用于外部连接的导电端子,连接到输入 - 输出电极,其至少部分基本上位于与安装面相同的平面中。 在介质滤波器或介质双工器中,由于输入输出电极设置在不设置在介质块的侧面的介质块的端面上,所以由输入 - 输出电极引起的Q0的劣化可以 减少 因此,插入损耗和衰减特性得到改善。
    • 6. 发明授权
    • Characteristic adjusting method for dielectric filter using a grinding
tool
    • 使用研磨工具的介质过滤器特性调整方法
    • US6078230A
    • 2000-06-20
    • US843433
    • 1997-04-15
    • Haruo MatsumotoYasuo YamadaYukihiro KitaichiTadahiro YoritaHideyuki KatoTatsuya TsujiguchiHisashi MoriHitoshi Tada
    • Haruo MatsumotoYasuo YamadaYukihiro KitaichiTadahiro YoritaHideyuki KatoTatsuya TsujiguchiHisashi MoriHitoshi Tada
    • H01P1/205H01P1/201H01P11/00
    • H01P1/2056Y10T29/49016
    • A method of adjusting characteristics of a dielectric filter having integral electromagnetic shielding, the dielectric filter comprises a dielectric body having an outer surface including first and second end surfaces and side surfaces extending between the first and second end surfaces; an external conductor disposed on the outer surface of the dielectric body and providing integral electromagnetic shielding of the dielectric filter; at least one hole extending through the dielectric body between the first and second end surfaces; a respective pair of internal conductors provided in the at least one hole and conductively connected to the external conductor at respective ends of the hole, a respective non-conductive portion in the hole being spaced from both ends and thereby separating the pair of internal conductors and defining a respective capacitance between the pair of internal conductors; and signal input and output electrodes provided on the outer surface of the dielectric body and electrically isolated from the external conductor. According to the method, a portion of the dielectric material is removed, for example by grinding, to form the respective non-conductive portion in the hole. The hole may have a changing diameter along its length, due to a hollow formed in one end surface, the non-conductive portion being adjacent to the hollow; or due to a narrowed throttle portion formed at or near the end surface, the non-conductive portion being formed on the throttle portion. Alternatively, the hole may have a substantially constant cross-section, and the non-conductive portion may be substantially flush with the inner surface of the hole. The dielectric body may be regular in shape or may have a side surface with portions spaced from the resonator hole by different respective distances.
    • 一种调节具有整体电磁屏蔽的介质滤波器的特性的方法,所述介质滤波器包括具有包括第一和第二端面以及在所述第一和第二端面之间延伸的侧表面的外表面的电介质体; 设置在电介质体的外表面上并提供介质滤波器的整体电磁屏蔽的外部导体; 至少一个孔延伸穿过第一和第二端面之间的电介质体; 设置在所述至少一个孔中的相应的一对内部导体,并且在所述孔的相应端处导电地连接到所述外部导体,所述孔中的相应的非导电部分与两端间隔开,从而将所述一对内部导体和 限定所述一对内部导体之间的相应电容; 以及设置在电介质体的外表面上并与外部导体电隔离的信号输入和输出电极。 根据该方法,例如通过研磨去除介电材料的一部分,以在孔中形成相应的非导电部分。 由于在一个端面形成的中空孔,孔的长度可以具有变化的直径,非导电部分与中空部相邻; 或者由于形成在端面处或附近的节流部分变窄,所以非导电部分形成在节流部分上。 或者,孔可以具有基本上恒定的横截面,并且非导电部分可以与孔的内表面基本上齐平。 电介质体的形状可以是规则的,也可以具有不同的距离的与谐振器孔隔开的侧面。
    • 9. 发明授权
    • Dielectric resonator apparatus comprising a plurality of one-half
wavelength dielectric coaxial resonators having open-circuit gaps at
ends thereof
    • 介质谐振器装置,包括在其端部具有开路间隙的多个半波长介电同轴谐振器
    • US5525946A
    • 1996-06-11
    • US306207
    • 1994-09-14
    • Tatsuya TsujiguchiTadahiro YoritaHitoshi TadaHideyuki KatoYukihiro KitaichiHaruo Matsumoto
    • Tatsuya TsujiguchiTadahiro YoritaHitoshi TadaHideyuki KatoYukihiro KitaichiHaruo Matsumoto
    • H01P1/205H01P1/202
    • H01P1/2056
    • A dielectric resonator apparatus comprising a plurality of dielectric coaxial resonators has a dielectric block with first and second surfaces and a plurality of side surfaces located therebetween, and a plurality of cylindrical resonator holes are formed in parallel to each other so as to penetrate the dielectric block, each of the resonator holes having an opening at the first surface and another opening at the second surface. Further, an outer conductor is formed on the first and second surfaces and a plurality of side surfaces, and a plurality of inner conductors is formed on the plurality of resonator holes, respectively. Then a plurality of extending conductors is formed in the vicinity of the openings of the plurality of resonator holes, respectively, so as to extend from the outer conductor to the plurality of resonator holes and to form gaps between the plurality of extending conductors and the inner conductors, each of the inner conductors having open-circuit ends in the vicinity of both the openings of the resonator holes, thereby constituting a plurality of dielectric coaxial resonators. Furthermore, a pair of input and output electrodes is formed on the side surfaces so as to be electrically insulated from the outer conductor.
    • 包括多个介电同轴谐振器的介质谐振器装置具有介电块,其具有第一和第二表面以及位于其间的多个侧表面,并且多个圆柱形谐振器孔彼此平行地形成以穿透介电块 每个谐振器孔在第一表面具有开口,在第二表面具有另一个开口。 此外,在第一和第二表面和多个侧表面上形成外导体,并且在多个谐振器孔上分别形成多个内导体。 然后,分别在多个谐振器孔的开口附近形成多个延伸导体,以便从外部导体延伸到多个谐振器孔,并在多个延伸导体和内部导体之间形成间隙 导体,每个内部导体在谐振器孔的两个开口附近都具有开路端,从而构成多个电介质同轴谐振器。 此外,在侧表面上形成一对输入和输出电极,以便与外部导体电绝缘。
    • 10. 发明授权
    • Dielectric filter having non-conductive adjusting regions
    • 具有非导电调节区域的介质滤波器
    • US06466109B1
    • 2002-10-15
    • US09590243
    • 2000-06-08
    • Haruo MatsumotoYasuo YamadaYukihiro KitaichiTadahiro YoritaHideyuki KatoTatsuya TsujiguchiHisashi MoriHitoshi Tada
    • Haruo MatsumotoYasuo YamadaYukihiro KitaichiTadahiro YoritaHideyuki KatoTatsuya TsujiguchiHisashi MoriHitoshi Tada
    • H01P1201
    • H01P1/2056Y10T29/49016
    • A dielectric filter having a dielectric body made of dielectric material and having an outer surface including first and second end faces; an external conductor disposed on the outer surface of the dielectric body; at least one hole extending through the dielectric body between the two end faces, the at least one hole having a respective inner surface; the at least one hole having a pair of internal conductors respectively provided in the corresponding hole and conductively connected to the external conductor at respective ends of the corresponding hole, a respective non-conductive portion at the inner surface of the corresponding hole being spaced from both ends of the respective hole and thereby separating the corresponding pair of internal conductors and defining a capacitance between the corresponding pair of internal conductors; the first end face of said dielectric body being closer to the non-conductive portion at the inner surface of the corresponding hole than the second end face; the first end face having a non-conductive portion free of a portion of the external conductor, the non-conductive portion being disposed at a location for adjusting either a resonance frequency or a coupling degree of the filter, or both. At the first end face of the dielectric body, the non-conductive portion may in addition be free of a portion of the dielectric material.
    • 一种介质滤波器,具有由电介质材料制成并具有包括第一和第二端面的外表面的电介质体; 布置在电介质体的外表面上的外部导体; 至少一个孔延伸穿过所述介电体在所述两个端面之间,所述至少一个孔具有相应的内表面; 所述至少一个孔具有一对内部导体,分别设置在相应的孔中,并且在相应的孔的相应端部处导电地连接到外部导体,相应孔的内表面处的相应非导电部分与两者间隔开 从而分离相应的一对内部导体,并且在相应的一对内部导体之间限定电容; 所述电介质体的第一端面比所述第二端面更靠近相应孔的内表面处的非导电部分; 所述第一端面具有不具有所述外部导体的一部分的非导电部分,所述非导电部分设置在用于调节所述滤波器的共振频率或耦合度的位置,或两者。 在电介质体的第一端面,非导电部分可以另外不含电介质材料的一部分。