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    • 5. 发明授权
    • Dielectric duplexer and communication apparatus
    • 介质双工器和通信设备
    • US06525625B1
    • 2003-02-25
    • US09627620
    • 2000-07-28
    • Hideki TsukamotoKatsuhito KurodaJinsei IshiharaHideyuki Kato
    • Hideki TsukamotoKatsuhito KurodaJinsei IshiharaHideyuki Kato
    • H01P512
    • H01P1/2135H01P1/2136
    • A dielectric duplexer has first and second filters passing two adjacent bands and is not influenced by signals in bands that are outwardly adjacent to the two passing bands. The space between small sectional area portions on short-circuit-end sides of first and second resonator holes is arranged to be relatively small, and the two resonator holes are coupled with each other according to a distributed-constant-type inductive coupling method. The space between small sectional area portions on short-circuit-end sides of fourth and fifth resonator holes is arranged to be relatively large, and the two resonator holes are coupled with each other according to a distributed-constant-type capacitive coupling method. Furthermore, the space between small sectional area portions on short-circuit-end sides of the fifth resonator hole and a sixth resonator hole is arranged to be relatively small, and the two resonator holes are coupled with each other according to a distributed-constant-type inductive coupling method. In this way, an attenuation pole is generated on a high-band side of a transmitting band according to the first and second resonator holes. Also, attenuation poles are individually generated on a high-band side and a low-band side of a receiving band according to the fourth, fifth, and sixth resonator holes.
    • 介质双工器具有通过两个相邻频带的第一和第二滤波器,并且不受与两个通过频带相邻的频带中的信号的影响。 第一和第二谐振器孔的短路端侧的小截面积部分之间的空间被布置为相对较小,并且两个谐振器孔根据分布常数型电感耦合方法彼此耦合。 第四谐振孔和第五谐振器孔的短路端侧的小截面积部分之间的空间被布置为相对较大,并且两个谐振器孔根据分布常数型电容耦合方法彼此耦合。 此外,第五谐振器孔的短路端侧的小截面积部分与第六谐振器孔之间的空间被布置为相对较小,并且两个谐振器孔根据分布常数相互耦合, 型电感耦合方法。 以这种方式,根据第一和第二谐振器孔,在发送频带的高频带侧产生衰减极。 此外,根据第四,第五和第六谐振器孔,在接收频带的高频带侧和低频带侧分别产生衰减极。
    • 8. 发明授权
    • Dielectric filter, duplexer, and communication apparatus
    • 介质滤波器,双工器和通信设备
    • US06351198B1
    • 2002-02-26
    • US09440865
    • 1999-11-16
    • Hideki TsukamotoKatsuhito KurodaJinsei IshiharaHideyuki Kato
    • Hideki TsukamotoKatsuhito KurodaJinsei IshiharaHideyuki Kato
    • H01P120
    • H01P1/2136H01P1/2056
    • The open faces of resonator holes of a dielectric filter are capable of being formed with high dimensional precision by a simple process, by which a coupling between resonators and an external coupling can easily be adjusted. In addition, a duplexer including the dielectric filter, and a communication apparatus including at least one of the dielectric filter and the duplexer are provided. The dielectric filter includes a dielectric block having protrusions on the upper surface of a substantially rectangular-parallelepiped base. Resonator holes are disposed by penetrating from the end faces of the protrusions to the lower surface of the base that opposes the end faces. External coupling holes are disposed by penetrating the opposing upper and lower surfaces of the base. An inner conductor is formed on the inner surface of each hole, and an outer conductor is formed on the substantially entire outer surface of the dielectric block except the end faces of the protrusions. Additionally, input and output electrodes separated from the outer conductor are formed at the openings of the external coupling holes on the lower surface of the dielectric block.
    • 介质滤波器的谐振器孔的开放面能够通过简单的工艺以高尺寸精度形成,由此可以容易地调节谐振器和外部耦合之间的耦合。 此外,提供了包括介质滤波器的双工器,以及包括介质滤波器和双工器中的至少一个的通信设备。 介质滤波器包括在大致矩形平行六面体基底的上表面上具有突起的介质块。 谐振器孔通过从突起的端面穿过底座的与端面相对的下表面而设置。 通过穿过基座的相对的上表面和下表面设置外部联接孔。 在每个孔的内表面上形成内部导体,并且在除了突起的端面之外的绝缘块的大致整个外表面上形成外部导体。 此外,与外导体分离的输入和输出电极形成在介质块的下表面上的外部耦合孔的开口处。