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1. 发明公开

CN106253872A 可调控的表面声波谐振器和过滤器有权
公开(公告)号：CN106253872A
公开(公告)日：2016-12-21
申请号：CN201610642154.X
申请日：2016-08-09
申请人：石以瑄 , 邱星星 , 邱树农 , 石恩地 , 邱书涯 , 石宇琦
发明人：石以瑄 , 邱星星 , 邱树农 , 石恩地 , 邱书涯 , 石宇琦
IPC分类号： H03H9/145 , H03H9/25 , H03H9/46
CPC分类号： H03H9/02574 , H03H9/02834 , H03H9/14541 , H03H2009/02165 , H03H9/14508 , H03H9/25 , H03H9/46
摘要：本发明提供了可调控的表面声波谐振器和过滤器，涉及到可调谐和可调整的具有嵌入型电极掺杂区或具有抬高型电极掺杂区的压电半导体过滤器，提供运用半导体的压电层中被埋置或抬高的电极掺杂区可调谐的表面声波谐振器。该过滤器以变化DC偏压来改变金属化比率和负荷质量作用来改变谐振频率。通过变化DC偏压，多件可调谐的SAW设备可以连接形成可调谐和可选择的微波过滤器来选择和调整带通频率或一台可调谐振荡器。

2. 发明授权

US4422000A Unidirectional surface acoustic wave device with meandering electrode 失效
标题翻译：具有曲折电极的单向表面声波装置
公开(公告)号：US4422000A
公开(公告)日：1983-12-20
申请号：US374758
申请日：1982-05-04
申请人： Jun Yamada , Katashi Hazama
发明人： Jun Yamada , Katashi Hazama
IPC分类号： H03H3/08 , H03H9/145
CPC分类号： H03H9/14508
摘要： A surface acoustic wave device on a piezoelectric substrate comprises an interdigital transducer having an interdigital sending part in the forward direction and an interdigital reflecting part in the reverse direction. An electrical phase difference of .phi. (radian) is applied between the sending and reflecting parts, while the distance between the sending and reflecting parts providing a geometrical phase difference therebetween is established to be ##EQU1## where n is a positive integer and .lambda..sub.o is the wavelength of surface acoustic wave. A third, common electrode meanders between the sending and reflecting electrodes.
摘要翻译：压电基板上的表面声波装置包括具有向前方向的叉指式发送部的交叉指型变换器和反方向的叉指反射部。在发送和反射部分之间施加phi（弧度）的电相位差，而在其间提供几何相位差的发送和反射部分之间的距离被确定为，其中n是正整数，λo是声表面波的波长。第三，在发射和反射电极之间的公共电极曲折。

3. 发明授权

US4315228A Multiple co-surface acoustic wave filters 失效
标题翻译：多重共表面声波滤波器
公开(公告)号：US4315228A
公开(公告)日：1982-02-09
申请号：US165580
申请日：1980-07-03
申请人： Robert A. Moore
发明人： Robert A. Moore
IPC分类号： H03B5/30 , H03H3/08 , H03H9/145 , H03H9/64 , H03H9/72 , H03H9/42
CPC分类号： H03H9/72 , H03H9/6406 , H03H9/14505 , H03H9/14508
摘要： Apparatus for providing a plurality of filtered outputs is described incorporating a substrate suitable for propagating surface acoustic waves having an input transducer, a first plurality of spaced-apart taps coupled together, a second plurality of spaced-apart taps coupled together where at least two of the second plurality of taps are positioned in spaces between the first plurality of taps.The invention overcomes the problem of providing separate substrate surface area for each plurality of taps coupled together.
摘要翻译：描述了用于提供多个滤波输出的设备，其包括适于传播具有输入换能器的表面声波的衬底，耦合在一起的第一多个间隔开的抽头，耦合在一起的第二多个间隔开的抽头，其中至少两个所述第二多个抽头位于所述第一多个抽头之间的空间中。本发明克服了为连接在一起的每个抽头提供单独的衬底表面积的问题。

4. 发明授权

US3723919A Acoustic surface wave filters with reflection suppression 失效
标题翻译：具有反射抑制功能的声波表面波滤波器
公开(公告)号：US3723919A
公开(公告)日：1973-03-27
申请号：US3723919D
申请日：1972-03-20
申请人： ZENITH RADIO CORP
发明人： ADLER R
IPC分类号： H03H9/145 , H03H9/20 , H03H9/30
CPC分类号： H03H9/14508
摘要： A surface-wave integratable filter includes an input transducer for launching acoustic surface waves along a path in a propagating medium. An output transducer responds to those surface waves by developing output signals. One or both transducers takes the form of an iterative series of conductive ribbons disposed laterally across the path. The ribbons are spaced apart by a distance of one-fourth the wavelength of the acoustic energy. A first source or load is connected exclusively across one of a first pair of successive ribbons and one of an adjacent pair of successive ribbons. A second source or load similarly is connected exclusively across the others of the ribbons in those first and second pairs. The center-to-center distance between the ribbons across which each source or load is connected is one-half the acoustic wavelength.
摘要翻译：表面波可积分滤波器包括用于沿传播介质中的路径发射声表面波的输入换能器。输出传感器通过开发输出信号来响应这些表面波。一个或两个换能器采取跨过路径横向布置的迭代系列的导电带的形式。色带间隔开声能波长四分之一的距离。第一源或负载专门连接在第一对连续带中的一个和相邻的一对连续带中的一个之间。类似地，第二源或负载仅在第一和第二对中的另一个带上连接。每个源或负载连接的色带之间的中心到中心距离是声波长的一半。

5. 发明授权

US4408347A High-frequency channel selector having fixed bandpass filters in the RF section 失效
标题翻译：在RF部分中具有固定带通滤波器的高频信道选择器
公开(公告)号：US4408347A
公开(公告)日：1983-10-04
申请号：US813198
申请日：1977-07-29
申请人： Darrell L. Ash
发明人： Darrell L. Ash
IPC分类号： H03B5/18 , H03B5/32 , H03B5/36 , H03D7/12 , H03D7/16 , H03H9/145 , H03H9/64 , H03J5/02 , H03J7/08 , H04B1/16
CPC分类号： H03J7/08 , H03B5/1847 , H03B5/326 , H03D7/125 , H03D7/161 , H03H9/6403 , H03J5/02 , H03J5/0254 , H03B5/362 , H03H9/14508
摘要： A high-frequency channel selector for a television receiver including at least one fixed filter having a predetermined passband, and a high-frequency mixer. The antenna for the television receiver receives radiated electromagnetic signals including, for example, a plurality of television channels. The fixed filter has an input coupled to the antenna and filters one fixed frequency spectrum of television channels from the received signals. The mixer has inputs coupled to simultaneously receive the fixed frequency spectrum of channels and mixing signals of a high selectable frequency. The high selectable frequency shifts selectable channels of the spectrum to high intermediate frequency substantially greater than 45 MHz.
摘要翻译：一种用于电视接收机的高频信道选择器，包括至少一个具有预定通带的固定滤波器和高频混频器。用于电视接收机的天线接收包括例如多个电视频道的辐射电磁信号。固定滤波器具有耦合到天线的输入，并且从接收到的信号中滤出电视频道的一个固定频谱。混频器具有耦合以同时接收频道的固定频谱和具有高可选择频率的混合信号的输入。高可选择频率将频谱的可选频道移动到大于45MHz的高中频。

6. 发明授权

US4254388A Frequency selector apparatus 失效
标题翻译：频率选择装置
公开(公告)号：US4254388A
公开(公告)日：1981-03-03
申请号：US74626
申请日：1979-09-12
申请人： Nobuo Mikoshiba , Shoichi Minagawa , Takeshi Okamoto
发明人： Nobuo Mikoshiba , Shoichi Minagawa , Takeshi Okamoto
IPC分类号： H03H9/25 , G10K11/36 , H03F7/04 , H03F13/00 , H03H3/08 , H03H9/145 , H01L41/04 , H01L27/20 , H03H9/64
CPC分类号： H03F13/00 , G10K11/36 , H03F7/04 , H03H9/14508
摘要： A frequency selector apparatus wherein unidirectional input and output surface-acoustic-wave transducers are provided in an acoustic wave propagation path formed on a piezoelectric device and reflecting electrodes, to which a.c. signals are applied respectively, are disposed in the acoustic wave propagation path on opposite sides of the transducers and adjacent thereto.
摘要翻译：一种频率选择装置，其中单向输入和输出表面声波换能器设置在形成在压电装置和反射电极上的声波传播路径中，分别施加信号，设置在换能器的相对侧的声波传播路径中并与其相邻。

7. 发明授权

US3878407A Surface wave electromechanical filter 失效
标题翻译：表面波电动过滤器
公开(公告)号：US3878407A
公开(公告)日：1975-04-15
申请号：US42579273
申请日：1973-12-18
申请人： THOMSON CSF
发明人： HARTEMANN PIERRE , GENAUZEAU FRANCEL
IPC分类号： H03H9/25 , H03H3/08 , H03H9/02 , H03H9/145 , H01V7/00
CPC分类号： H03H9/0296 , H03H9/02543 , H03H9/14508
摘要： The present invention relates to elastic surface wave electromechanical filters utilising interdigitated transducers. The electromechanical filter in accordance with the invention is made of a piezoelectric substrate carrying on each of its opposite main faces a pair of side-by-side comb type transducers for forming two collateral transmission channels coupled to a balanced-unbalanced electrical transmission device.
摘要翻译：本发明涉及利用交叉换能器的弹性表面波机电滤波器。根据本发明的机电滤波器由压电基板制成，压电基板在其相对的主表面中的每一个上承载一对并排梳状换能器，用于形成耦合到平衡不平衡电力传输装置的两个侧向传输通道。

8. 发明授权

US3755761A Surface wave transversal frequency filter 失效
标题翻译：表面波横向频率滤波器
公开(公告)号：US3755761A
公开(公告)日：1973-08-28
申请号：US3755761D
申请日：1971-12-30
申请人： TEXAS INSTRUMENTS INC
发明人： HARTMANN C
IPC分类号： H03H3/08 , H03H9/64 , H03H9/72 , H03H9/26 , H03H9/32 , H04R17/00
CPC分类号： H03H9/1452 , H03H9/14508 , H03H9/6403 , H03H9/6426 , H03H9/6433 , H03H9/72
摘要： Elastic waves propagating at the surface of a solid substrate are generated by a transducer-filter of interdigitated electrodes patterned to pass a particular wavelength of frequencies at an established center frequency. Interdigitated electrodes of the filter may be either uniformly spaced one-half wavelength apart or spaced to produce a desired function. The overlapping length of the electrode configuration for each filter varies in accordance with a weighting function usually approximating sin x/x. To generate an output signal having a desired frequency distribution between band pass and band stop regions, each filter comprises two sections of an array of three or more taps of interdigitated electrodes. These taps correspond to a fundamental, third, fifth, etc., time harmonic of the band passband stop periodicity. The two sections are arranged back to back on the substrate, that is, with the fundamental tap of each section adjacent and the highest time harmonic tap of each section at the ends of the filter. An interchange of the band pass and band stop regions is accomplished by splitting each filter and connecting the individual sections to a reversal switch. By selective programming of a plurality of filters, a particular frequency will be selected and passed through an array of such filters.
摘要翻译：在固体基板的表面传播的弹性波通过图形化以在已建立的中心频率通过特定波长的频率的交错电极的换能器滤波器来产生。滤波器的交错电极可以均匀间隔开两分之一波长或隔开以产生期望的功能。每个滤波器的电极配置的重叠长度根据通常接近sin x / x的加权函数而变化。为了产生在带通和带阻区域之间具有所需频率分布的输出信号，每个滤波器包括三个或更多个交叉电极抽头的阵列的两个部分。这些抽头对应于带通通带停止周期的基本，第三，第五等时间谐波。两个部分背靠背地布置在基板上，即每个部分的基本抽头相邻，并且在过滤器的端部处的每个部分的最高时间谐波抽头。带通和带阻区域的交换通过分割每个滤波器并将各个部分连接到反转开关来实现。通过对多个滤波器的选择性编程，将选择特定频率并通过这种滤波器的阵列。

9. 发明授权

EP0065389B1 Surface acoustic wave device 失效
公开(公告)号：EP0065389B1
公开(公告)日：1985-08-21
申请号：EP82302321.3
申请日：1982-05-06
申请人： Hitachi, Ltd.
发明人： Yamada, Jun , Hazama, Katashi
IPC分类号： H03H9/145
CPC分类号： H03H9/14508

10. 发明公开

EP0065389A3 SURFACE ACOUSTIC WAVE DEVICE 失效
标题翻译：表面声波设备
公开(公告)号：EP0065389A3
公开(公告)日：1983-01-26
申请号：EP82302321
申请日：1982-05-06
申请人： HITACHI, LTD.
发明人： YAMADA, JUN , HAZAMA, KATASHI
IPC分类号： H03H3/08 , H03H9/145
CPC分类号： H03H9/14508

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