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71.发明公开Wireless unit for a time division multiple access system 失效FunkübertragungsvorrichtungfürZeitmultiplex-Vielfachzugriffssystem
公开(公告)号：EP1146638A1
公开(公告)日：2001-10-17
申请号：EP01106159.5
申请日：1996-05-15
发明人： Ishida, Kaoru , Morinaga, Yoichi, 507,Foyu Hillside Terr. Kamihosh , Sasaki, Fujio , Ishizaki, Toshio , Sakakura, Makoto , Yamada, Toru , Kosugi, Hiroaki
CPC分类号： H01P1/20345 , H01P1/2135 , H03B2201/0208 , H03H7/38 , H03H7/46 , H03H2007/386 , H04B1/005 , H04B1/0057 , H04B1/006 , H04B1/406 , H04B1/48
摘要： A time division multiple access FDD wireless unit has a first local oscillator 8 for oscillating a first frequency; a second local oscillator 12 for oscillating a second frequency; a n-times multiplier 14 for multiplying the second frequency by n; a m-times multiplier 18 for multiplying the second frequency by m; a converter 6 for transmitting frequency of difference between a reception signal and an output of the first local oscillator 8; a converter 11 for transmitting frequency of sum or difference between an output of the converter 6 and an output of the n-times multiplier 14; modulator 19 for modulating an output of the m-times multiplier 18; a converter 22 for transmitting frequency of sum of an output of the modulator 19 and the output of m-times multiplier 18.
摘要翻译： 时分多址FDD无线单元具有用于振荡第一频率的第一本地振荡器8; 用于振荡第二频率的第二本地振荡器12; 用于将第二频率乘以n的n次乘法器14; m倍乘法器18，用于将第二频率乘以m; 用于发送接收信号和第一本地振荡器8的输出之间的差的频率的转换器6; 用于发送转换器6的输出和n次乘法器14的输出之间的和或差的频率的转换器11; 调制器19，用于调制m次乘法器18的输出; 用于发送调制器19的输出和m次乘法器18的输出的和的频率的转换器22
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公开(公告)号：EP0924857A3
公开(公告)日：2001-08-29
申请号：EP98124548.3
申请日：1998-12-22
IPC分类号： H03H9/64
CPC分类号： H03H9/6453 , H03H9/0042 , H03H9/0285 , H03H9/14505 , H03H9/14526 , H03H9/643 , H03H9/6433
摘要： A surface acoustic wave filter has : a piezoelectric substrate; a first filter track having a first input interdigital transducer, a first reflector, and a first output interdigital transducer disposed therebetween; and a second filter track having a second input interdigital transducer, a second reflector, and a second output interdigital transducer disposed therebetween on said piezoelectric substrate, wherein said first filter track and said second filter track are substantially arranged in parallel to each other, the distance between said first input interdigital transducer and said first output interdigital transducer is equal to the distance between said second input interdigital transducer and said second output interdigital transducer, the distance between said first output interdigital transducer and said first reflector differs from the distance between said second output interdigital transducer and said second reflector by (nλ+λ/4) (n: natural number), assuming that the wavelength of the surface acoustic wave is λ, an electrical connection mutually in opposite phase is established for any one of between said first input interdigital transducer and said second input interdigital transducer, or between said first output interdigital transducer and said second output interdigital transducer, while an electrical connection mutually in phase is established for the other, and each positive electrode and negative electrode of respective output interdigital transducers of said first and second filter tracks are both so configured that, electrode fingers are arranged in groups of two in a cycle of λ, each of the electrode fingers has a width along the surface acoustic wave propagation direction of approximately λ/8, while the center-to-center distance between the two electrode fingers of the one group is λ/4, and the space between adjacent, one pair of electrode fingers of said positive electrode and one pair of electrode fingers of said negative electrode is λ/2.
摘要翻译： 表面声波滤波器具有：压电基片; 具有第一输入叉指式换能器，第一反射器和设置在它们之间的第一输出叉指式换能器的第一滤波器轨道; 以及第二滤波器轨道，其具有设置在所述压电基板上的第二输入叉指式换能器，第二反射器和第二输出叉指式换能器之间的第二滤波器轨道，其中所述第一滤波器轨道和所述第二滤波器轨道基本上彼此平行布置， 所述第一输入叉指式换能器和所述第一输出叉指式换能器之间的距离等于所述第二输入叉指式换能器和所述第二输出叉指式换能器之间的距离，所述第一输出叉指式换能器和所述第一反射器之间的距离不同于所述第二输出 （nλ+λ/ 4）（n：自然数），假设表面声波的波长为λ，则为所述第一输入端之间的任何一个建立相互反相的电连接 叉指式换能器和所述第二输入叉指式换能器 在所述第一输出叉指式换能器和所述第二输出叉指式换能器之间建立相互同相的电连接，并且所述第一和第二滤波器轨道的各个输出叉指式换能器的每个正电极和负电极都是 如此配置，即电极指在λ的周期中以两个一组的方式排列，每个电极指的沿声表面波传播方向的宽度大约为λ/ 8，而两个电极指之间的中心到中心的距离 所述一组的电极指为λ/ 4，所述正极的相邻的一对电极指与所述负极的一对电极指之间的间隔为λ/ 2。
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公开(公告)号：EP0939449A3
公开(公告)日：2001-06-13
申请号：EP99103505.6
申请日：1999-02-24
IPC分类号： H01P1/203
CPC分类号： H01P11/007 , H01P1/20345
摘要： The present invention relates to a balanced dielectric filter used in high-frequency circuits, such as those used for radio apparatuses, and provides a balanced dielectric filter having balanced input/output terminals. Namely, the balanced dielectric filter comprises two resonators, each comprising plural strip-line resonating elements, disposed in parallel and mutually coupled electro-magnetically, and input and output terminals coupled to each resonator so as to function as a pair of balanced input terminals and a pair of balanced output terminals, wherein the two resonators are located in a ceramic dielectric to face each other and to be mirror images of each other. The resonating element is a quarter-wavelength resonating element, the end of the strip line thereof is grounded. The strip lines and coupling electrodes are arranged among ceramic layers, whereby the filter is integrated into a ceramic-multilayered structure.
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公开(公告)号：EP0648015B1
公开(公告)日：2000-05-31
申请号：EP94115793.5
申请日：1994-10-06
IPC分类号： H03H9/64
CPC分类号： H03H9/6479 , H03H7/38 , H03H9/0028 , H03H9/0542 , H03H9/14591 , H03H9/14597 , H03H9/6433 , H03H9/6463
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75.发明公开
公开(公告)号：EP0921636A3
公开(公告)日：2000-05-17
申请号：EP99103711.0
申请日：1997-05-22
IPC分类号： H03H9/64
CPC分类号： H03H9/6443 , H03H9/0028 , H03H9/02763 , H03H9/02913 , H03H9/02992 , H03H9/14588 , H03H9/14597 , H03H9/6463 , H03H9/6479
摘要： A surface acoustic wave filter on a piezoelectric substrate (101) comprising first and third surface acoustic wave resonators each having a reflector electrode (102b,102c) on both sides of an IDT electrode (102a,104a) as in inter-digital transducer electrode, said resonators being disposed on a piezoelectric substrate in positions in which directions of propagation of the respective surface acoustic waves are parallel with each other, a plurality of strip line electrodes (103a) being disposed in parallel between said first and third surface acoustic wave resonators in the same electrode period as those of the first and third surface acoustic wave resonators, said plural strip line electrodes being connected one another by bus bar electrodes to form a second surface acoustic wave resonator having periodic structured electrode rows, said first and third surface acoustic wave resonators being disposed nearby to said second surface acoustic wave resonator to make acoustic couple, and the adjacent bus bar electrodes between said surface acoustic wave resonators being electrically separated, and all periodic structured electrodes of said second surface acoustic wave resonators being grounded, assuming that an electrode finger crossing width of IDT electrodes (102a,104a) constituting the first and third acoustic wave resonators to be W1, and a strip line length of said periodic structured electrode rows (103a) constituting the second surface acoustic wave resonator to be W2, the relative size of W1 to W2 being set to 1≤ W2/W1.
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公开(公告)号：EP0924857A2
公开(公告)日：1999-06-23
申请号：EP98124548.3
申请日：1998-12-22
IPC分类号： H03H9/64
CPC分类号： H03H9/6453 , H03H9/0042 , H03H9/0285 , H03H9/14505 , H03H9/14526 , H03H9/643 , H03H9/6433
摘要： A surface acoustic wave filter has :
a piezoelectric substrate; a first filter track having a first input interdigital transducer, a first reflector, and a first output interdigital transducer disposed therebetween; and a second filter track having a second input interdigital transducer, a second reflector, and a second output interdigital transducer disposed therebetween on said piezoelectric substrate,
wherein said first filter track and said second filter track are substantially arranged in parallel to each other,
the distance between said first input interdigital transducer and said first output interdigital transducer is equal to the distance between said second input interdigital transducer and said second output interdigital transducer,
the distance between said first output interdigital transducer and said first reflector differs from the distance between said second output interdigital transducer and said second reflector by (nλ+λ/4) (n: natural number), assuming that the wavelength of the surface acoustic wave is λ,
an electrical connection mutually in opposite phase is established for any one of between said first input interdigital transducer and said second input interdigital transducer, or between said first output interdigital transducer and said second output interdigital transducer, while an electrical connection mutually in phase is established for the other, and
each positive electrode and negative electrode of respective output interdigital transducers of said first and second filter tracks are both so configured that,
electrode fingers are arranged in groups of two in a cycle of λ, each of the electrode fingers has a width along the surface acoustic wave propagation direction of approximately λ/8, while the center-to-center distance between the two electrode fingers of the one group is λ/4, and the space between adjacent, one pair of electrode fingers of said positive electrode and one pair of electrode fingers of said negative electrode is λ/2.摘要翻译： 表面声波滤波器具有：压电基板; 第一滤波器轨道，具有第一输入叉指换能器，第一反射器和设置在它们之间的第一输出叉指换能器; 以及第二滤波器轨道，其具有设置在所述压电基板上的第二输入叉指式换能器，第二反射器和第二输出叉指换能器，其中所述第一滤波器轨道和所述第二滤波器轨道基本上彼此平行地布置， 所述第一输入叉指式换能器和所述第一输出叉指式换能器之间的距离等于所述第二输入叉指换能器与所述第二输出叉指式换能器之间的距离，所述第一输出叉指式换能器与所述第一反射器之间的距离与所述第二输出叉指式换能器之间的距离不同， 假设表面声波的波长是λ，则假定表面声波的波长为λ，则相互相反的电连接被建立为所述第一和第二反射器之间的所述第一反射器（nλ+λ/ 4）（n：自然数） 输入叉指式换能器和所述第二输入端 Nterdigital换能器或所述第一输出叉指式换能器和所述第二输出叉指式换能器之间，同时为另一方形成相位相同的电连接，并且所述第一和第二滤波器轨道的各个输出叉指式换能器的每个正电极和负极为 这两个构造使得电极指以λ的周期被布置成两组，每个电极指具有沿着表面声波传播方向的大约λ/ 8的宽度，而中心到中心之间的距离 一组的两个电极指是λ/ 4，并且所述正极的相邻的一对电极指和所述负极的一对电极指之间的空间为λ/ 2。
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公开(公告)号：EP0590612B1
公开(公告)日：1998-08-26
申请号：EP93115651.7
申请日：1993-09-28
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78.发明公开Surface acoustic wave filter and multistage surface acoustic wave filter 失效AkustischerOberflächenwellenfilterund mehrstufiger akustischerOberflächenwellenfilter
公开(公告)号：EP0809357A2
公开(公告)日：1997-11-26
申请号：EP97108314.2
申请日：1997-05-22
IPC分类号： H03H9/64
CPC分类号： H03H9/6443 , H03H9/0028 , H03H9/02763 , H03H9/02913 , H03H9/02992 , H03H9/14588 , H03H9/14597 , H03H9/6463 , H03H9/6479
摘要： A surface acoustic wave resonator is constituted by an IDT electrode and reflector electrodes disposed on both sides thereof, on a piezoelectric substrate. Two of said surface acoustic wave resonators are disposed nearby so that the propagation directions of the respective surface acoustic waves are in parallel to each other to make acoustic couple to constitute a surface acoustic wave filter having plural exciting modes with different propagation frequencies. The bus bar electrodes of each of two IDT electrodes are electrically separated from each other, and the leading out electrodes led out from at least two spots on those bus bar electrodes are electrically connected to each other, by which one side of the balanced input and output terminal. As a result, the electrode resistance of the IDT electrode is alleviated to make the insertion loss less.
摘要翻译： 表面声波谐振器由压电基板上的IDT电极和设置在其两侧的反射器电极构成。 两个所述表面声波谐振器被设置在附近，使得各声表面波的传播方向彼此平行，以使声耦合构成具有不同传播频率的多个激励模式的表面声波滤波器。 两个IDT电极中的每一个的汇流条电极彼此电分离，并且从那些汇流条电极上的至少两个点引出的引出电极彼此电连接，通过该平行输入的一侧和 输出端子。 结果，减轻了IDT电极的电极电阻，使插入损耗减小。
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79.发明公开Wireless unit for a time division multiple access system 失效Drahtlose VorrichtungfürZeitmultiplex-Vielfachzugriffssystem
公开(公告)号：EP0744831A2
公开(公告)日：1996-11-27
申请号：EP96107777.3
申请日：1996-05-15
发明人： Ishida, Kaoru , Kosugi, Hiroaki , Sasaki, Fujio , Morinaga, Yoichi , Ishizaki, Toshio , Sakakura, Makoto , Yamada, Toru
CPC分类号： H01P1/20345 , H01P1/2135 , H03B2201/0208 , H03H7/38 , H03H7/46 , H03H2007/386 , H04B1/005 , H04B1/0057 , H04B1/006 , H04B1/406 , H04B1/48
摘要： A time division multiple access FDD wireless unit has a first local oscillator 8 for oscillating a first frequency; a second local oscillator 12 for oscillating a second frequency; a n-times multiplier 14 for multiplying the second frequency by n; a m-times multiplier 18 for multiplying the second frequency by m; a converter 6 for transmitting frequency of difference between a reception signal and an output of the first local oscillator 8; a converter 11 for transmitting frequency of sum or difference between an output of the converter 6 and an output of the n-times multiplier 14; modulator 19 for modulating an output of the m-times multiplier 18; a converter 22 for transmitting frequency of sum of an output of the modulator 19 and the output of m-times multiplier 18.
摘要翻译： 时分多址FDD无线单元具有用于振荡第一频率的第一本地振荡器8; 用于振荡第二频率的第二本地振荡器12; 用于将第二频率乘以n的n次乘法器14; m倍乘法器18，用于将第二频率乘以m; 用于发送接收信号和第一本地振荡器8的输出之间的差的频率的转换器6; 用于发送转换器6的输出和n次乘法器14的输出之间的和或差的频率的转换器11; 调制器19，用于调制m次乘法器18的输出; 用于发送调制器19的输出和m次乘法器18的输出的和的频率的转换器22
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公开(公告)号：EP0648015A2
公开(公告)日：1995-04-12
申请号：EP94115793.5
申请日：1994-10-06
IPC分类号： H03H9/64
CPC分类号： H03H9/6479 , H03H7/38 , H03H9/0028 , H03H9/0542 , H03H9/14591 , H03H9/14597 , H03H9/6433 , H03H9/6463
摘要： A SAW resonator disposed with an IDT electrode and reflector electrodes is formed on the surface of a piezoelectric substrate (11). Three pieces of the SAW resonator form an acoustic coupling by being disposed close to each other, electrode fingers comprising the IDT electrode (13a) in the center are all grounded, and IDT electrode fingers are electrically independent on the side to be connected to input-output terminals of the IDT electrodes (12a, 14a) disposed outside. As a result, three excitation modes having different propagation frequencies are generated which are used to attain a broad band SAW resonator filter. When these three pairs of the IDT electrode are electrically independent, a balanced input-output can be achieved, and excellent out-of-band rejection characteristics can be obtained.
摘要翻译： 设置有IDT电极和反射器电极的SAW谐振器形成在压电基片（11）的表面上。 三个SAW谐振器通过彼此靠近布置而形成声耦合，包括位于中央的IDT电极（13a）的电极指都接地，并且IDT电极指在要连接到输入 - IDT电极（12a，14a）的输出端子配置在外部。 结果，产生具有不同传播频率的三种激励模式，用于获得宽带SAW谐振器滤波器。 当这三对IDT电极电独立时，可以实现平衡的输入 - 输出，并且可以获得优异的带外抑制特性。
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