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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。
    • 2. 发明授权
    • Dielectric filter, dielectric duplexer, and communication apparatus
    • 介质滤波器,介质双工器和通信设备
    • US06411177B1
    • 2002-06-25
    • US09493561
    • 2000-01-28
    • Hitoshi TadaHideyuki KatoMotoharu Hiroshima
    • Hitoshi TadaHideyuki KatoMotoharu Hiroshima
    • H01P120
    • H01P1/2136H01P1/2056
    • There is disclosed a dielectric filter comprising: an attenuation band in proximity to a pass band; a threshold-frequency position of a determined maximum insertion loss being arranged close to a shoulder portion of a waveform exhibiting pass characteristics in which insertion losses increase in a region from the pass band to the attenuation band; temperature characteristics of a dielectric material being determined in such a manner that the shoulder portion moves toward the attenuation-band direction according to an increase and decrease in temperature. In the above dielectric filter, the deterioration of insertion-loss characteristics with respect to temperature changes is improved so that good characteristics are exhibited over a wide range of temperatures.
    • 公开了一种介质滤波器,包括:靠近通带的衰减带; 所确定的最大插入损耗的阈值频率位置被布置为接近表现出从通带到衰减带的区域中的插入损耗增加的通过特性的波形的肩部; 电介质材料的温度特性按照肩部根据温度的升高和降低朝向衰减带方向移动的方式确定。在上述介质滤波器中,插入损耗特性相对于温度变化的劣化 被改进,使得在宽的温度范围内表现出良好的特性。
    • 5. 发明授权
    • Dielectric filter, dielectric duplexer, and communication apparatus
    • 介质滤波器,介质双工器和通信设备
    • US06784767B2
    • 2004-08-31
    • US10245309
    • 2002-09-18
    • Motoharu HiroshimaJun TodaHideyuki Kato
    • Motoharu HiroshimaJun TodaHideyuki Kato
    • H01P120
    • H01P1/2056
    • A dielectric filter includes a dielectric block having inner-conductor-formed holes extending from a first face of the dielectric block to a second face opposed to the first face. Inner conductors are formed inside the inner-conductor-formed holes such that both ends of the inner-conductor-formed holes are open-circuited. On the exterior surface of the dielectric block, balanced input/output terminals are capacitively coupled to the open ends of the inner-conductor-formed holes. A metal cover is provided so as to cover one of the first or second face of the dielectric block. The metal cover functions as a short-circuit conductor in a spurious mode such as a TE mode other than a TEM mode, and hence the influence of the spurious mode is avoided.
    • 介质滤波器包括介质块,其具有从介质块的第一面延伸到与第一面相对的第二面的内导体形成的孔。 在内部导体形成的孔内部形成内导体,使得内部导体形成的孔的两端开放。 在介质块的外表面上,平衡的输入/输出端子电容耦合到内部导体形成的孔的开口端。 提供金属盖以覆盖介质块的第一或第二面中的一个。 金属盖用作诸如TEM模式之外的TE模式的杂散模式的短路导体,因此避免了寄生模式的影响。
    • 8. 发明授权
    • Dielectric resonator, dielectric filter, dielectric duplexer, and communication apparatus incorporating the same
    • 介质谐振器,介质滤波器,介质双工器以及包含该介质双工器的通信设备
    • US06680661B2
    • 2004-01-20
    • US09948329
    • 2001-09-06
    • Motoharu HiroshimaHideyuki KatoJun Toda
    • Motoharu HiroshimaHideyuki KatoJun Toda
    • H01P1213
    • H01P1/2056H01P1/2136H01P7/04
    • The present invention provides a dielectric resonator, a dielectric filter, a dielectric duplexer capable of reducing leakage of electromagnetic waves and capable of being miniaturized, and a communication apparatus incorporating the same. In each of the dielectric resonator and filter, inside a dielectric block, there is formed a L-shaped inner-conductor-formed hole having a bend at some point of the hole in a manner extending from an outer surface of the dielectric block to a surface perpendicular to the outer surface. An inner conductor is formed on the inner surface of the inner-conductor-formed hole. On the substantially entire outer surfaces of the dielectric block, there is disposed an outer conductor, with one end of the inner-conductor-formed hole open-circuited and the remaining end of the hole short-circuited. Around the edge of the open-circuited end there is formed an outer coupling electrode. This structure enables formation of the dielectric resonator and the dielectric filter having the L-shaped inner-conductor-formed holes.
    • 本发明提供了能够减少电磁波泄漏并能够小型化的介质谐振器,介质滤波器,介质双工器以及包含该电介质的通信装置。 在介质谐振器和滤波器的每一个中,在介质块的内部形成有L形的内导体形成的孔,该孔在孔的某个点具有从介质块的外表面延伸到 表面垂直于外表面。 内导体形成在内导体孔的内表面上。 在介质块的大致整个外表面上设置有外部导体,内部导体形成的孔的一端开放,孔的剩余端短路。 围绕开路端的边缘形成外部耦合电极。 这种结构能够形成具有L形内导体形成孔的介质谐振器和介质滤波器。
    • 10. 发明授权
    • Band pass filter, antenna duplexer, and communication apparatus
    • 带通滤波器,天线双工器和通信设备
    • US06356169B1
    • 2002-03-12
    • US09452984
    • 1999-12-02
    • Jun TodaMotoharu HiroshimaHideyuki Kato
    • Jun TodaMotoharu HiroshimaHideyuki Kato
    • H01P120
    • H01P1/2056
    • There is provided a band pass filter comprising three or more resonant-line holes disposed in a dielectric block, a resonant line formed on each inner surface of the holes, and an outer conductor disposed on the outer surfaces of the dielectric block so that a dielectric filter is formed; wherein one end of the resonant line is a short-circuited end, and the other end thereof is an open end; the sectional area size of each of the resonant-line holes is changed at a certain point in the axial direction of the resonant-line hole; the sectional area size on the short-circuited-end side or open-end side of at least one of the plurality of resonant-line holes is made differently from those of the other resonant-line holes; and regarding the resonant-line holes symmetric with respect to a symmetry axis made at the center in a direction in which the plurality of resonant-line holes is aligned, the sectional area sizes of the short-circuited-end side or open-end side thereof are made the same so as to form coupling between adjacent resonant lines.
    • 提供了一种带通滤波器,其包括设置在介质块中的三个或更多个谐振线路孔,形成在孔的每个内表面上的谐振线,以及设置在该介质块的外表面上的外导体, 过滤器形成; 其中所述谐振线路的一端为短路端,其另一端为开路端; 每个谐振线路孔的截面积尺寸在谐振线路孔的轴向上的某一点改变; 多个谐振线路孔中的至少一个谐振线路孔的短路端侧或开放端侧的截面积尺寸与其他谐振线路孔的截面面积大小不同。 并且关于相对于在多个谐振线路孔对准的方向上的中心形成的对称轴对称的谐振线路孔,短路端侧或开路端侧的截面积尺寸 使其相同,以形成相邻谐振线之间的耦合。