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公开(公告)号：US5010269A
公开(公告)日：1991-04-23
申请号：US282177
申请日：1988-12-09
CPC分类号： H03H9/14505 , H03H9/25
摘要： A SAW resonator includes resonating SAW transducer units formed on a piezoelectric substrate and juxtaposed in a direction of propagation of acoustic waves, and a unidirectionally reflecting SAW transducer unit provided in each end of the juxtaposed resonating SAW transducer units on the substrate. Each resonating SAW transducer unit includes first and second SAW transducers connected in series and/or in parallel with each other. Each unidirectionally reflecting SAW transducer unit includes first and second comb-like electrodes having a plurality of first second fingers, respectively, formed on the substrate, in which: two second fingers are interposed between each pair of adjacent two first fingers; at least one reflective stripe is provided between the two second fingers interposed between at least one pair of adjacent two first fingers; and the distances between the reflective stripe and the two second fingers and the widths of the two second fingers are determined such that acoustic waves produced by the fingers of the reflecting SAW transducer units and propagating in a first direction perpendicular to the direction of the length of the fingers and reflected by the reflective stripe in a second direction perpendicular to the first direction are in phase with acoustic waves propagating in the second direction and acoustic waves produced by the fingers of the reflecting SAW transducer units and propagating in the second direction and reflected by the reflective stripe in the first direction are out of phase with acoustic waves propagating in the first direction.
摘要翻译： SAW谐振器包括形成在压电基板上并且在声波传播方向上并置的谐振SAW传感器单元，以及设置在基片上并置的谐振SAW换能器单元的每一端的单向反射SAW换能器单元。 每个谐振SAW换能器单元包括彼此串联和/或并联连接的第一和第二SAW换能器。 每个单向反射SAW换能器单元包括分别形成在基板上的多个第一第二指状物的第一和第二梳状电极，其中：两个第二指状物插入在每对相邻的两个第一指状物之间; 在插入在至少一对相邻的两个第一指状物之间的两个第二指状物之间提供至少一个反射条纹; 并且确定反射条和两个第二指状物之间的距离和两个第二指状物的宽度，使得由反射SAW换能器单元的指状物产生的声波在垂直于第二指状物的长度方向的第一方向上传播 手指并且在与第一方向垂直的第二方向上由反射条纹反射，与在第二方向上传播的声波和由反射SAW换能器单元的指状产生的声波相同，并且在第二方向上传播并由第 在第一方向上的反射条纹与在第一方向上传播的声波不同相。
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公开(公告)号：US4734664A
公开(公告)日：1988-03-29
申请号：US844104
申请日：1986-03-26
CPC分类号： H03H9/6479 , H03H9/1455 , H03H9/25 , H03H9/6463
摘要： In order to realize an SAW filter withstanding high power, a plurality of single open-ended surface acoustic wave resonators are connected in series, and an earth conductor is disposed at least on a part of rear face of a piezoelectric substrate constituting the surface acoustic wave resonators. And static capacities formed between said earth conductor and electrode conductors on the piezoelectric substrate constituting the surface acoustic wave resonators are utilized as constituents of the filter circuit. In the above described structure, a part of input power is not converted into acoustic energy, but directly transmitted to the output side. Since the mechanical stress imposed upon the electrode material and the piezoelectric substrate is thus lightened, the SAW filter can withstand a large power signal.
摘要翻译： 为了实现具有高功率的SAW滤波器，多个单开口声表面波谐振器串联连接，接地导体至少设置在构成声表面波的压电基片的背面的至少一部分上 谐振器。 在构成表面声波谐振器的压电基板上的所述接地导体和电极导体之间形成的静电容量被用作滤波器电路的组成部分。 在上述结构中，输入功率的一部分不被转换为声能，而是直接传输到输出侧。 由于施加在电极材料和压电基板上的机械应力因此减轻，所以SAW滤波器可以承受大的功率信号。
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公开(公告)号：US4792939A
公开(公告)日：1988-12-20
申请号：US6171
申请日：1987-01-23
申请人： Mitsutaka Hikita , Atsushi Sumioka , Yoshikatu Ishida , Kunihiro Hamada , Yutaka Chiba , Yoshio Abe
发明人： Mitsutaka Hikita , Atsushi Sumioka , Yoshikatu Ishida , Kunihiro Hamada , Yutaka Chiba , Yoshio Abe
摘要： In order to reduce the size of a duplex radio communication transceiver such as a mobile telephone, this transceiver is constructed of a transmitting and receiving duplexer, a filter to be coupled to the duplexer, an amplifier for amplifying a signal received, and a filter to be connected with the output of the amplifier. All the filters are made of acoustic surface wave filters, and all the circuits are mounted on a single metallic substrate and sealed by means of a metallic casing into a module. The transceiver thus constructed has a volume which is one tenth as small as that of the device of the same kind according to the prior art.
摘要翻译： 为了减小诸如移动电话的双工无线电通信收发机的大小，该收发器由发送和接收双工器，要耦合到双工器的滤波器，用于放大接收的信号的放大器和滤波器构成 与放大器的输出连接。 所有滤波器由声表面波滤波器制成，所有电路都安装在单个金属基板上，并通过金属外壳密封成模块。 如此构造的收发器具有根据现有技术的相同类型装置的体积的十分之一的体积。
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公开(公告)号：US5438305A
公开(公告)日：1995-08-01
申请号：US924091
申请日：1992-08-03
IPC分类号： H01L21/60 , H01L23/12 , H01L23/66 , H03H7/38 , H03H9/05 , H03H9/145 , H03H9/25 , H05K1/02 , H05K1/16 , H05K1/18 , H05K7/02 , H03H9/64 , H03H11/28
CPC分类号： H03H9/1071 , H01L23/66 , H03F3/195 , H03F3/50 , H03H9/0542 , H03H9/0547 , H03H9/0585 , H03H9/1085 , H01L2224/32245 , H01L2224/45144 , H01L2224/45147 , H01L2224/48091 , H01L2224/48137 , H01L2224/4823 , H01L2224/73265 , H01L24/45 , H01L24/48 , H01L2924/00014 , H01L2924/01079 , H01L2924/01087 , H01L2924/14 , H01L2924/16152 , H01L2924/16195 , H01L2924/19041 , H01L2924/30107 , H01L2924/3011 , H03F2203/5036 , H03H2001/0078 , H05K1/0237 , H05K1/165 , H05K1/189
摘要： A high frequency module is disclosed which comprises a high frequency device in a package, a circuit formed on a flexible substrate in the package, the circuit, the high frequency device and input/output terminals of the package being connected electrically.
摘要翻译： 公开了一种高频模块，其包括封装中的高频器件，形成在封装中的柔性衬底上的电路，电路，封装的高频器件和输入/输出端子电连接。
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15.发明授权Electrode material for surface acoustic wave devices and surface acoustic wave device using the same 失效表面声波装置的电极材料和使用其的声表面波装置
公开(公告)号：US4906885A
公开(公告)日：1990-03-06
申请号：US247339
申请日：1988-09-21
摘要： A surface acoustic wave device has its inter--digital transducers made of a 3--metal alloyed material consisting of aluminum, copper and magnesium.
摘要翻译： 表面声波装置具有由铝，铜和镁组成的3金属合金材料制成的数字间换能器。
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公开(公告)号：US5235234A
公开(公告)日：1993-08-10
申请号：US785524
申请日：1991-10-31
IPC分类号： H03H9/145
CPC分类号： H03H9/14502
摘要： A surface acoustic wave device comprises a piezoelectric substrate and a plurality of electrode fingers which are located on the piezoelectric substrate along the propagation direction of a surface acoustic wave. The electrode fingers are located on the piezoelectric substrate at a pitch of about 1.5.lambda.o/2 (where a symbol .lambda.o indicates a wavelength of a surface acoustic wave with a frequency equivalent to the center frequency of the surface acoustic wave device). The width of each of the electrode fingers is about 1.5.lambda.o/4. The electrode fingers are located on the substrate so as to be electrically independent of an external circuit and each other.Since the width of electrode fingers is about 1.5.lambda.o/4, the surface acoustic wave device can be produced without fine processing techniques.
摘要翻译： 表面声波装置包括压电基板和沿着声表面波的传播方向位于压电基板上的多个电极指。 电极指以约1.5λo/ 2的间距位于压电基板上（其中符号λo表示具有与声表面波装置的中心频率相当的频率的表面声波的波长）。 每个电极指的宽度为约1.5λo / 4。 电极指位于基板上，以便与外部电路彼此电独立。 由于电极指的宽度为约1.5λo / 4，所以可以在没有精细加工技术的情况下制造表面声波装置。
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公开(公告)号：US5065065A
公开(公告)日：1991-11-12
申请号：US526508
申请日：1990-05-21
IPC分类号： H03H9/145
CPC分类号： H03H9/14502
摘要： A surface acoustic wave device comprises a piezoelectric substrate and a plurality of electrode fingers which are located on the piezoelectric substrate along the progagation direction of a surface acoustic wave. The electrode fingers are located on the piezoelectric substrate at a pitch of about 1.5.lambda.o/2 (where a symbol .lambda.o indicates a wavelength of a surface acoustic wave with a frequency equivalent to the center frequency of the surface acoustic wave device). The width of each of the electrode fingers is about 1.5.lambda.o/4. The electrode fingers are located on the substrate so as to be electrically independent of an external circuit and each other.Since the width of electrode fingers is about 1.5.lambda.o/4, the surface acoustic wave device can be produced without fine processing techniques.
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公开(公告)号：US4803449A
公开(公告)日：1989-02-07
申请号：US122325
申请日：1987-11-18
CPC分类号： H03H9/6479 , H03H9/02755 , H03H9/6443 , H03H9/6463 , H03H9/14597
摘要： This invention relates to the structure of a band-pass or band-rejection filters by combining a plurality of one-port surface acoustic wave resonators whose interdigital electrode fingers are disposed on a piezoelectric substrate. The filter combining surface acoustic wave resonators of the present invention consists of a series circuit of the one-port surface acoustic wave resonators disposed on a piezoelectric substrate for transmitting elastic surface wave and a plurality of circuit elements containing capacitance elements, and one-port surface acoustic wave resonators disposed between the electrodes of the plurality of circuit elements and the common ground. This structure can accomplish a filter having a low loss, high power handling capability and high design freedom of rejection- and passing-band.
摘要翻译： 本发明涉及通过组合多个单指示声表面波谐振器的带通或带阻滤波器的结构，其中叉形电极指配置在压电基片上。 组合本发明的表面声波谐振器的滤波器由布置在用于传播弹性表面波的压电基片上的单端口声表面波谐振器和包含电容元件的多个电路元件的串联电路和单端口表面 声波谐振器设置在多个电路元件的电极和公共地之间。 该结构可以实现具有低损耗，高功率处理能力和高排斥与通带设计自由度的滤波器。
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公开(公告)号：US07659795B2
公开(公告)日：2010-02-09
申请号：US12216646
申请日：2008-07-09
摘要： A technology which can realize a high-performance multiband operation in a compact circuit configuration and is advantageous for a wireless terminal of GSM system for which the further increase of the demands is expected in the future is provided. Provided is a multiband switch type antenna duplexer adopted in a mobile phone used in TDMA system such as the GSM system, in which the signals of respectively different first to fourth frequency bands (GSM 850, EGSM, DCS, PCS) share a single antenna, wherein switching elements such as receive filters and diodes are combined in various ways to perform the high-performance band switch with the minimum number of switching elements. The circuit of this antenna duplexer can realize not only the size reduction of the multiband switch antenna duplexer but also the size reduction and performance improvement of the wireless terminal itself.
摘要翻译： 提供了一种在紧凑的电路配置中实现高性能多频带操作的技术，并且对于将来期望进一步增加需求的GSM系统的无线终端是有利的。 提供了在诸如GSM系统的TDMA系统中使用的移动电话中采用的多频带开关型天线双工器，其中分别不同的第一至第四频带（GSM 850，EGSM，DCS，PCS）的信号共享单个天线， 其中诸如接收滤波器和二极管的开关元件以各种方式组合以执行具有最少数量的开关元件的高性能频带开关。 该天线双工器的电路不仅可以实现多频带开关天线双工器的尺寸减小，而且可以实现无线终端本身的尺寸减小和性能改进。
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公开(公告)号：US20070052494A1
公开(公告)日：2007-03-08
申请号：US11312414
申请日：2005-12-21
CPC分类号： H03H9/605 , H03H9/6483
摘要： A resonator is connected in parallel to at least one serial-arm-connected resonator in a resonator type filter having a serial arm and a parallel arm. At this time, the resonance frequency of the resonator connected in parallel is set to be substantially the same as the resonance frequency of the parallel-arm-connected resonator. This makes it possible to prevent the deterioration of attenuation levels at the lower-frequency side of the filter, caused by an increase in the resistance of a connection element due to an increase in packaging density.
摘要翻译： 谐振器与具有串联臂和并联臂的谐振器型滤波器中的至少一个串联臂连接的谐振器并联连接。 此时，并联连接的谐振器的谐振频率被设定为与并联臂连接的谐振器的谐振频率基本相同。 这使得可以防止由于封装密度的增加导致的连接元件的电阻的增加而导致的滤波器的低频侧的衰减电平的劣化。
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