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1. 发明专利

JP2002335110A DIELECTRIC RESONATOR DEVICE, FILTER, DUPLEXER, AND COMMUNICATIONS EQUIPMENT 失效
公开(公告)号：JP2002335110A
公开(公告)日：2002-11-22
申请号：JP2001139116
申请日：2001-05-09
申请人： MURATA MANUFACTURING CO
发明人： ISE TOMOYUKI , ABE MAKOTO , KOSHIGA ITARU , WAKAMATSU HIROMI
IPC分类号： H01P7/10 , H01P1/20 , H01P1/208 , H01P1/213
摘要： PROBLEM TO BE SOLVED: To constitute a dielectric resonator device, a filter, a duplexer, and communications equipment using the device, filter, and duplexer to have superior temperature characteristics, even when different kinds of modes are multiplexed. SOLUTION: A dielectric core 3 is constituted of dielectric core portions 31, 32, and 33, and a dielectric material used for forming the core 3 is selected, so that the temperature coefficient of the core portion 32 to which TEz-mode electric fields are concentrated become positive, and the temperature coefficients of the other core portions 31 and 32 becomes negative. In this way, the temperature characteristics of the dielectric resonator device, filter, duplexer, and communications equipment are compensated with respect to TMx+y, TMx-y, and TEz modes.

2. 发明专利

JP2001156511A MULTIPLE MODE DIELECTRIC RESONATOR, FILTER, DUPLEXER AND COMMUNICATION DEVICE 失效
公开(公告)号：JP2001156511A
公开(公告)日：2001-06-08
申请号：JP33340499
申请日：1999-11-24
申请人： MURATA MANUFACTURING CO
发明人： HATTORI JUN , ABE MAKOTO , WAKAMATSU HIROMI , ISE TOMOYUKI
IPC分类号： H01P1/20 , H01P1/208 , H01P1/212 , H01P1/213 , H01P7/10
摘要： PROBLEM TO BE SOLVED: To provide a multiple mode dielectric resonator having TM and TE multiplexed mode that facilitates coupling between the resonance modes and can take many sequential coupling stages of the resonance modes per single dielectric core and to provide a filter and a duplexer using the dielectric resonator and a communication device using them. SOLUTION: The dielectric core 10 placed in a cavity 2 consists of a TM mode dielectric core board section 11 and of a TE mode dielectric core section 12 that is swollen asymmetrically from the core section 11 in vertical direction so that the TMx mode and the TEz mode are coupled and also the TMy mode and the TEz mode are coupled through the asymmetry of the TE mode dielectric core section 12 with respect to the TM mode dielectric core board section 11.

3. 发明专利

JPH11251803A BAND STOP DIELECTRIC FILTER, DIELECTRIC DUPLEXER AND COMMUNICATION MACHINE DEVICE 失效
公开(公告)号：JPH11251803A
公开(公告)日：1999-09-17
申请号：JP4378498
申请日：1998-02-25
申请人： MURATA MANUFACTURING CO
发明人： KUBOTA KAZUHIKO , ISE TOMOYUKI
IPC分类号： H01P1/20 , H01P1/208 , H01P1/209 , H01P1/213 , H01P7/10 , H04B1/48
摘要： PROBLEM TO BE SOLVED: To weaken the subordinate relation of between a resonance frequency and a non-load Q and to individually design them by connecting an outer connection means to a dielectric resonator, which is arranged in a shielding concave having conductivity and in which electrodes are formed on two confronting faces. SOLUTION: Silver electrodes 18 are formed on the two confronting faces of dielectric resonators 12a. A signal inputted from an outer connector 14 flows to outer connection means 13, and capacity is generated between the outer connection means 13 and the dielectric resonator 12, and it is resonated by a resonance frequency which an area in a cross section parallel to the silver electrodes 18 of the dielectric resonator 12a regulates. The degree of connection is decided by the confronting areas and their distances. The degree of connection can be adjusted by changing the lengths and the arranging the places of the outer connection means 13. A dielectric filter for stopping a wide band by strengthening the degree of connection can be changed for a dielectric filter stopping a narrow band by weakening the degree of connection.

4. 发明专利

JPH11205004A DIELECTRIC FILTER AND DIELECTRIC DUPLEXER 失效
公开(公告)号：JPH11205004A
公开(公告)日：1999-07-30
申请号：JP886098
申请日：1998-01-20
申请人： MURATA MANUFACTURING CO
发明人： KUBOTA KAZUHIKO , ISE TOMOYUKI
IPC分类号： H01P1/20 , H01P1/208 , H01P1/213 , H01P5/04 , H01P7/10
摘要： PROBLEM TO BE SOLVED: To attain the decrease in discharging occurrences by improving voltage resistance between an electric probe and a dielectric by composing at least one part of an external coupling means of the electric probe covered with a covering dielectric. SOLUTION: An external coupling means 20 is formed by covering the desired part of an electric probe 21 composed of a metal wire with the covering dielectric, such as resin 22. The resin 22 is formed into a columnar shape having a diameter larger than that of the electric probe 21, and a through-hole is formed through two opposed surfaces. The resin 22 is moved and the electric probe 21 is inserted through the through-hole, and the resin 22 is adjusted so as to cover the electric probe 21 up to the desired position. By covering the electric probe 21 with the resin 22, the possibility of discharging occurrences between the electric probe 21 and a dielectric 12 is decreased. Also by changing the dielectric constant between the electric probe 21 and the dielectric 12 through the resin 22, a capacitance is changed, the coupling strength between the electric probe 21 and the dielectric 12 can be changed, and the desired band characteristics can be provided.

5. 发明专利

JPH09326608A THIN FILM MULTILAYER ELECTRODE, HIGH FREQUENCY TRANSMISSION LINE, HIGH FREQUENCY RESONATOR AND HIGH FREQUENCY FILTER 失效
公开(公告)号：JPH09326608A
公开(公告)日：1997-12-16
申请号：JP14005696
申请日：1996-06-03
申请人： MURATA MANUFACTURING CO
发明人： ISHIKAWA YOHEI , HIDAKA SEIJI , MATSUI NORIBUMI , ISE TOMOYUKI
IPC分类号： H01L27/01 , H01P3/08 , H01P3/18 , H01P7/08
摘要： PROBLEM TO BE SOLVED: To attain the use of even a ceramic dielectric substrate that has the projecting/recessing parts or pores on its surface and also to secure a skin effect suppression effect which is equivalent to the conventional effect by setting the film thickness so as to secure the substantial coincidence between the phase of an electromagnetic field generated on the dielectric substrate and that of the electromagnetic field generated on every thin dielectric film. SOLUTION: A flattening dielectric film 20 is formed on the upper surface of a ceramic dielectric substrate 10 to flatten its surface. Then the thin conductor films 1, 2 and 3 and the thin dielectric films 30-1 and 30-2 are alternately laminated on the film 20. The thickness of films 1 to 3 and 30-1 and 30-2 are set in consideration of the thickness of the film 20 and the relative dielectric constant, so that the substantial coincidence is secured between the phase of the electromagnetic field generated on the substrate 10 and the phase of the electromagnetic field generated on each of both films 30-1 and 30-2 when a thin film multilayer electrode 100 is used with the prescribed working frequency.

6. 发明专利

JPH08167804A HIGH FREQUENCY ELECTROMAGNETIC FIELD COUPLING TYPE THIN FILM LAMINATED ELECTRODE, HIGH FREQUENCY TRANSMISSION LINE, HIGH FREQUENCY RESONATOR, HIGH FREQUENCY FILTER, HIGH FREQUENCY DEVICE, AND METHOD FOR SETTING UP FILM THICKNESS OF THE ELECTRODE 失效
公开(公告)号：JPH08167804A
公开(公告)日：1996-06-25
申请号：JP31090094
申请日：1994-12-14
申请人： MURATA MANUFACTURING CO
发明人： ISHIKAWA YOHEI , HIDAKA SEIJI , ISE TOMOYUKI , GOTO YOSHIHIKO
IPC分类号： H01P1/20 , H01P1/203 , H01P1/208 , H01P3/08 , H01P3/18 , H01P7/08 , H01P7/10
摘要： PURPOSE: To reduce the loss of a conductor by simple structure by forming an electromagnetic field coupling type thin film laminated transmission line using a high frequency electromagnetic field coupling type thin film laminated electrode on which thin film conductors and thin film dielectrics are alternately laminated. CONSTITUTION: A band-like thin film conductor 5 having longitudinal length of λg/2 (λg is intra-conduit wavelength) is formed on a dielectric substrate 10. A main transmission line LN 10 is constituted of conductors 5, 11 and the substrate 10 held between the conductors 5, 11. Then a thin film dielectric 30-4, a thin film conductor 4, a thin film dielectric 30-3, a thin film conductor 3, a thin film dielectric 30-2, a thin trim conductor 2, a thin film dielectric 30-1, and a thin film conductor 1 are successively laminated on the conductor 5. Then an input terminal conductor 12 and an output terminal conductor 13 are formed on the substrate 10 with respective gaps g1, g2 from the conductor 5 so as to be electromagnetically mutually coupled.

7. 发明专利

JP2000068708A DIELECTRIC RESONATOR EQUIPMENT, TRANSMISSION/RECEPTION MULTICOUPLER AND COMMUNICATION EQUIPMENT 失效
公开(公告)号：JP2000068708A
公开(公告)日：2000-03-03
申请号：JP23555098
申请日：1998-08-21
申请人： MURATA MANUFACTURING CO
发明人： HATTORI JUN , ABE MAKOTO , ISE TOMOYUKI
IPC分类号： H01P1/20 , H01P1/208 , H01P1/213 , H01P7/10
摘要： PROBLEM TO BE SOLVED: To constitute dielectric resonator equipment consisting of small and plural resonators and dielectric resonator equipment provided with a resonator whose non-load Q is high and to constitute a transmission/reception multicoupler and communication equipment using the dielectric resonator equipment. SOLUTION: A dielectric core 1 is provided in a cavity 2 to constitute a resonator of a six-fold mode and conductors for coaxial resonators 6a and 6b are provided in the cavity 2 as a connecting resonator. Thus, the connecting resonator is connected side by side with the dielectric resonator of each mode of the six-fold mode to operate as a dielectric resonator filter consisting of the plural resonators.

8. 发明专利

JPH11239011A DIELECTRIC FILTER, DIELECTRIC DUPLEXER AND COMMUNICATION DEVICE 失效
公开(公告)号：JPH11239011A
公开(公告)日：1999-08-31
申请号：JP3881098
申请日：1998-02-20
申请人： MURATA MANUFACTURING CO
发明人： KUBOTA KAZUHIKO , ISE TOMOYUKI
IPC分类号： H01P1/20 , H01P1/208 , H01P1/213 , H01P7/10
摘要： PROBLEM TO BE SOLVED: To obtain a dielectric filter which prevents the short circuit of a conductor layer at the edge of a thin film multilayer electrode due to solder and suppresses the drop of a no-load Q. SOLUTION: This dielectric filter 10 comprises a shielding cavity 11 having conductivity, dielectric resonators 12 which are arranged in the cavity 11 and form electrodes on two opposite planes, an earth plate 13a arranged in the cavity 11 and external connecting means 14, has at least one of the electrodes that is a thin film multilayer electrode and connects the thin film multilayer electrode to the plate 13a. In this case, a projecting part 40a is formed on the plate 13a and the part 40a is connected to the plane on which the thin film multilayer electrode of the resonator 12 is formed, on a plane which is smaller than range that is formed by the edge of the resonator 12.

9. 发明专利

JPH10242720A DIELECTRIC RESONATOR AND DIELECTRIC FILTER 失效
公开(公告)号：JPH10242720A
公开(公告)日：1998-09-11
申请号：JP4064697
申请日：1997-02-25
申请人： MURATA MANUFACTURING CO
发明人： KUBOTA KAZUHIKO , ISE TOMOYUKI
IPC分类号： H01P1/207 , H01P3/18 , H01P7/06
摘要： PROBLEM TO BE SOLVED: To prevent the leakage of an electromagnetic field and the deterioration of no-load resonance sharpness Qo by forming an electrode of a plane part as a thin film multilayer electrode where both thin film electrode and dielectric layers are alternately laminated and the peripheral part of every thin film electrode layer is short-circuited and then forming a hole on a face almost vertical to the plane part of a dielectric plate or post. SOLUTION: A thin film multilayer electrode 2 is formed at a plane part by laminating alternately both thin film electrode and dielectric layers and short-circuiting the peripheral part of every thin film electrode layer. When the resonance frequency of a dielectric resonator of such a constitution is controlled, a hole 6 is formed on a face vertical to the upper and lower plane parts of a dielectric plate 1. The change of the resonance frequency is increased when the depth of the hole 6 is controlled at a position near the center of the plate 1, and the resonance frequency is finely controlled when the depth of the hole 6 is controlled at a position excluding the center of the plate 1. Thus, it's possible to decide the size of the hole 6 in order to secure the prescribed resonance frequency even in a design step.

10. 发明专利

JPH10229302A DIELECTRIC RESONATOR 失效
公开(公告)号：JPH10229302A
公开(公告)日：1998-08-25
申请号：JP22618397
申请日：1997-08-22
申请人： MURATA MANUFACTURING CO
发明人： HIDAKA SEIJI , MATSUI NORIBUMI , KUBOTA KAZUHIKO , ISE TOMOYUKI
IPC分类号： H01P7/06 , H01P1/20 , H01P1/208 , H01P7/10
摘要： PROBLEM TO BE SOLVED: To provide a dielectric resonator which is miniaturized as a whole, while keeping Qo high. SOLUTION: In the case of configuring a dielectric resonator 10 that is resonated in the mode, where an electric field component is provided in a direction perpendicular to a plane by forming an electrode on the surface of a dielectric board 1 or a dielectric pole, the electrode 2 of the plane is formed to be a thin-film multi-layer electrode, where a thin-film electrode layer and a thin-film dielectric layer are laminated alternately. Each thin dielectric layer inserted between the thin film electrode layers acts as the dielectric resonator 10. The thin-film multi-layer electrode acts as many laminated dielectric resonators. Thus, a current is distributed to the many thin film electrode layers so as to relax the concentration of current on the dielectric board or the surface of the dielectric pole, thereby reducing the entire conductor loss.

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