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1. 发明专利

JP2000252703A DIELECTRIC FILTER DIELECTRIC DUPLEXER AND COMMUNICATION APPARATUS 失效
公开(公告)号：JP2000252703A
公开(公告)日：2000-09-14
申请号：JP4794299
申请日：1999-02-25
申请人： MURATA MANUFACTURING CO
发明人： HATTORI JUN , KUBOTA KAZUHIKO , KUBO HIROYUKI
IPC分类号： H01P1/20 , H01P1/208 , H01P1/213 , H01P7/10
摘要： PROBLEM TO BE SOLVED: To provide a dielectric filter where an attenuation pole is provided to a lower frequency and a higher frequency of a pass band without the use of two dielectric resonators. SOLUTION: The dielectric filter 10 is provided with a dielectric resonator 20 that includes a cavity 21 with a conductive layer 23 formed thereto and a cross-shaped dielectric resonator 22 placed in the cavity 21 and has at least three resonance modes, and with loops 12a, 12b coupled with the dielectric resonator 20. The loop 12a is coupled with the 1st stage resonance mode among the resonance modes of the dielectric resonator 20 and coupled with the 3rd stage resonance mode in nearly an inverted phase with respect to the 1st stage.

2. 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.

3. 发明专利

JPH10209725A DIELECTRIC RESONATOR 失效
公开(公告)号：JPH10209725A
公开(公告)日：1998-08-07
申请号：JP624097
申请日：1997-01-17
申请人： MURATA MANUFACTURING CO
发明人： HATTORI JUN , KUBOTA KAZUHIKO , ISE TOMOYUKI , ANDO MASAMICHI , MOTOOKA YUTAKA
IPC分类号： H01P7/06 , H01P5/08
摘要： PROBLEM TO BE SOLVED: To eliminate the need for boring a hole in a planar part of a dielectric plate or dielectric column and to maintain low-loss operation by a thin-film multi-layered electrode by jointing an external coupling member, which has a coupling loop formed in advance to an electrode non-formation part provided on the dielectric plate or dielectric column planar part surface. SOLUTION: On a main member 11 for external coupling, a ground electrode 21 and electrodes 23a and 23b for a coupling loop are formed. On a subordinate member 12 for external coupling, a ground electrode 22 is formed except on the opposite surface of the electrode 23a and the opposite surface of the flank of a dielectric resonator 10. Then the center conductor of a coaxial connector 13 is connected to the electrode 23a for the coupling loop, an external conductor is connected to ground electrodes 21 and 22, and the external coupling main member 11 and subordinate member 12 are jointed to form a member for external coupling, which is jointed to the electrode non-formation part 7. Consequently, the coupling loop in the dielectric resonator is constituted to obtain a magnetic field coupling with TM110 mode.

4. 发明专利

JPH09214206A DIELECTRIC RESONATOR 失效
公开(公告)号：JPH09214206A
公开(公告)日：1997-08-15
申请号：JP2139496
申请日：1996-02-07
申请人： MURATA MANUFACTURING CO
发明人： HATTORI JUN , KURISU TORU , ABE MAKOTO
IPC分类号： H01P1/20 , H01P1/208 , H01P7/10
摘要： PROBLEM TO BE SOLVED: To provide the dielectric resonator with high performance having a characteristic equivalent to a triple mode configuration formed at a low cost with a prescribed outer size without increasing the size larger. SOLUTION: A cylindrical hole 4b is made two crossing parts of two resonators 2a, 2b being a component of a TM duplex mode dielectric resonator 2 in the broadwise direction, a nearly quadrangular pyramid hole 4a with bottom is made from an outer wall of a cavity 1 toward the inside of the resonators 2a, 2b at a connection part with a cavity 1 at both end faces of the resonators 2a, 2b respectively and a conductor 3a in continuity with a cabity conductor 3 is formed to the entire inner face of each hole 4a. The shape of the holes 4a, 4b is selected so that the resonance frequency in the TM111 mode is the same as the resonance frequency in the TM110 mode of the TM duplex mode dielectric resonator.

5. 发明专利

JPH0614454A FILTER DEVICE 失效
公开(公告)号：JPH0614454A
公开(公告)日：1994-01-21
申请号：JP16113492
申请日：1992-06-19
申请人： MURATA MANUFACTURING CO , NIPPON TELEGRAPH & TELEPHONE
发明人： NOJIMA TOSHIO , TARUSAWA YOSHIAKI , ISHIKAWA YOHEI , HATTORI JUN , SONODA TOMIYA , MIYAZAKI SHINICHI
IPC分类号： H01P1/20 , H02H9/04 , H04B1/18 , H04B7/26 , H04W88/02
摘要： PURPOSE:To greatly increase the resistance against lightning in a filter device using an active resonator. CONSTITUTION:A lightning arrester 2 for leading a lightning current to the ground is provided at the input side of a filter device 4 to be protected from lightning, and a surge absorbing circuit capable of absorbing a lightning surge to an active element is provided near the active element located inside the filter device 4. By doing this, if an antenna 1 receives a lightning shock, the lightning impulse current I0 flows to the ground through the lightning arrester 2. The residual component which could not absorbed by the lightning arrester 2 enters to the filter 4 as a lightning surge, but the lightning surge is absorbed by the surge absorbing circuit. By doing this, the active element can be protected.

6. 发明专利

JPH0548305A BAND REJECTION FILTER 失效
公开(公告)号：JPH0548305A
公开(公告)日：1993-02-26
申请号：JP20693791
申请日：1991-08-19
申请人： MURATA MANUFACTURING CO
发明人： HATTORI JUN , SONODA TOMIYA
IPC分类号： H01P1/208 , H01P1/20 , H01P1/209 , H01P7/10
摘要： PURPOSE:To realize the small sized, light weight and inexpensive band rejection filter using a TM mode dielectric resonator. CONSTITUTION:Plural TM mode dielectric resonator units in the multiple mode each formed by providing an inner dielectric body 1 integrated with plural columnar dielectric bodies set orthogonal are employed and the resonance frequency of each resonator is set to the resonance frequency of each stage in a block band to form a multistage band rejection filters by using a few number of the resonator units. Since the band rejection filter is formed by using a few number of the resonator units, the small sized, light weight and inexpensive band rejection filter is obtained.

7. 发明专利

JPH04276906A DISTRIBUTER 失效
公开(公告)号：JPH04276906A
公开(公告)日：1992-10-02
申请号：JP3847391
申请日：1991-03-05
申请人： MURATA MANUFACTURING CO
发明人： HATTORI JUN , SONODA TOMIYA
IPC分类号： H01P5/04 , H01P5/12
摘要： PURPOSE:To easily and continuously set the power distribution ratio by having only to adjust a phase shift angle of a variable phase shifter. CONSTITUTION:When a power is supplied to an input terminal 20 while a phase angle of a variable phase shifter 28 inserted between directional couplers 12, 14 interconnected by a main transmission line 16 is set zero, the power is not outputted to an output terminal 22 but outputted to an output terminal 26 only. Moreover, when a power is supplied to the input terminal 20 while a phase angle of the variable phase shifter 28 is set to pi, the power is not outputted to the output terminal 26 but outputted to the output terminal 22 only. Thus, the distribution ratio of the power outputted from the output terminals 22, 26 is regulated by adjusting optionally the phase angle of the variable phase shifter 28 is set within 0-pi.

8. 发明专利

JPH01212901A DIELECTRIC FILTER 失效
公开(公告)号：JPH01212901A
公开(公告)日：1989-08-25
申请号：JP3772488
申请日：1988-02-19
申请人： MURATA MANUFACTURING CO
发明人： ISHIKAWA YOHEI , HATTORI JUN , SONODA TOMIYA
IPC分类号： H01P1/20 , H01P1/208 , H01P5/08 , H01P7/10
摘要： PURPOSE:To facilitate the connection between an input/output terminal of a dielectric filter and a printed circuit board by providing a notch a frame at one end of each dielectric pole and forming an external connection electrode in the notch in the dielectric filter where the two dielectric poles of a dielectric resonator are arranged orthogonally to each other. CONSTITUTION:The input electrode 23 of a 1st stage dielectric resonator 12 is led out at a right angle to the dielectric pole 12b from the notch 21 formed to the side face of one end of the dielectric pole 12b. Moreover, the output electrode 25 of the final stage dielectric resonator 13 is led out in a direction in parallel with the dielectric pole 13b. Thus, the input electrode 23 of the 1st stage dielectric resonator 12 and the output electrode 25 of the final stage dielectric resonator 13 are led from positions turned by 180 deg. each other. Then in case of mounting the dielectric filter onto, e.g., a face of the printed circuit board 26, the pattern of the mount face and the input electrode 23 and the output electrode 25 are connected simply by semi-rigid coaxial cables 27, 28.

9. 发明专利

JPS63224398A ELECTRONIC COMPONENT 失效
公开(公告)号：JPS63224398A
公开(公告)日：1988-09-19
申请号：JP5823287
申请日：1987-03-13
申请人： MURATA MANUFACTURING CO
发明人： ISHIKAWA YOHEI , HATTORI JUN , KATO HIDEYUKI
IPC分类号： H05K5/04 , H05K9/00

10. 发明专利

JPS63219203A STRIP LINE FILTER 失效
公开(公告)号：JPS63219203A
公开(公告)日：1988-09-12
申请号：JP31351586
申请日：1986-12-26
申请人： MURATA MANUFACTURING CO
发明人： ISHIKAWA YOHEI , HATTORI JUN , KATO HIDEYUKI
IPC分类号： H01P1/203 , H01P1/205
摘要： PURPOSE:To prevent deterioration in the attenuation characteristic by forming a recessed part to a location of a ground electrode opposed to a resonance electrode, making the gap between the tip face of the resonance electrode and the resonance electrode opposed part of the ground electrode wide and making the gap between the resonance electrode adjacent to the tip face and the ground connection part narrow. CONSTITUTION:In an interdigital filter 1, a recessed part 5 is formed to a part of the ground electrodes 3a, 3b opposed to the resonance electrode 4 to make the gap S3 between the tip face of the resonance electrode 4 and the resonance electrode opposed part of arm electrodes 3a, 3b wide. Simultaneously, the gap S4 between the tip face and the ground electrode connection part of the adjacent resonance electrode 4 is made narrow. Thus, since the coupling capacitor with skipped by one stage is decreased, the deterioration in the attenuation characteristic is avoided.

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