专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

KR1020030048759A 표면탄성파 필터 시스템의 잡음 방지 장치 无效
标题翻译：防止表面声波滤波系统噪声的装置
公开(公告)号：KR1020030048759A
公开(公告)日：2003-06-25
申请号：KR1020010078772
申请日：2001-12-13
申请人： 엘지이노텍 주식회사
发明人： 김주상
IPC分类号： H03H9/64
CPC分类号： H03H9/64 , H03H9/125 , H03H9/25 , H03H9/30
摘要： PURPOSE: An apparatus for preventing noise of a surface acoustic wave filter system is provided to minimize noise due to feedthrough by installing a shield portion between an input portion and an output portion of the surface acoustic wave filter system. CONSTITUTION: A surface acoustic wave filter system includes a package(10) and a shield portion(50). A circuit including a surface acoustic wave filter(40) is installed in inside of the package in order to protect and array the circuit. The shield portion shields particular signals which is directly transmitted from an input portion to an output portion instead of the surface acoustic wave filter. The shield portion is formed with a metal plate which is connected to an external earth portion. The shield portion is provided to a lid of the package.
摘要翻译：目的：提供一种用于防止表面声波滤波系统的噪声的装置，以通过在声表面波滤波器系统的输入部分和输出部分之间安装屏蔽部分来最小化由馈通引起的噪声。构成：表面声波滤波器系统包括封装（10）和屏蔽部分（50）。包括表面声波滤波器（40）的电路安装在封装的内部，以保护和排列电路。屏蔽部分屏蔽从输入部分直接传输到输出部分而不是表面声波滤波器的特定信号。屏蔽部分形成有连接到外部接地部分的金属板。屏蔽部分设置在封装的盖子上。

2. 发明公开

KR1020030088995A 표면 탄성파 필터의 잡음 방지 구조 失效
标题翻译：表面声波滤波器的噪声消除结构
公开(公告)号：KR1020030088995A
公开(公告)日：2003-11-21
申请号：KR1020020026862
申请日：2002-05-15
申请人： 엘지이노텍 주식회사
发明人： 이승기
IPC分类号： H03H9/64
CPC分类号： H03H9/64 , H03H9/1092 , H03H9/25 , H03H9/30 , H03H9/6473
摘要： PURPOSE: A noise eliminating structure of a SAW(Surface Acoustic Wave) filter is provided to prevent the noise generated upon filtering signals by increasing area from a cross region of fingers to a region of a ground electrode. CONSTITUTION: An input electrode(42) is comprised of a signal electrode(42a) and a ground electrode(42b). The signal electrode(42a) and the ground electrode(42b) are disposed in parallel on a piezoelectric substrate(30). An input IDT(InterDigital Transducer)(40) is comprised of a plurality of input fingers(41). An output electrode(52) is comprised of signal and ground electrodes(52a,52b), which are disposed in parallel with the input IDT(40). An output IDT(50) is comprised of a plurality of output fingers(51). The input fingers(41) of the input IDT(40) are crossed to form a predetermined pattern. An area(43b) from the cross region of the input fingers(41) to the ground electrode(42b) is greater than an area(43a) from the cross region to the signal electrode(42a).
摘要翻译：目的：提供SAW（表面声波）滤波器的噪声消除结构，以通过增加从手指的交叉区域到接地电极的区域的面积来防止滤波信号产生的噪声。构成：输入电极（42）由信号电极（42a）和接地电极（42b）构成。信号电极（42a）和接地电极（42b）平行配置在压电基板（30）上。输入IDT（数字间传感器）（40）由多个输入指状物（41）组成。输出电极（52）由与输入IDT（40）并联设置的信号和接地电极（52a，52b）组成。输出IDT（50）由多个输出指（51）组成。输入IDT（40）的输入指状物（41）交叉以形成预定图案。从输入爪（41）到接地电极（42b）的交叉区域的区域（43b）大于从交叉区域到信号电极（42a）的区域（43a）。

3. 发明公开

KR1020010026400A Ｋ 대역 디지털 위상변위기 失效
标题翻译： K带宽数字相位变换器
公开(公告)号：KR1020010026400A
公开(公告)日：2001-04-06
申请号：KR1019990037705
申请日：1999-09-06
申请人： 주식회사 팬택앤큐리텔
发明人： 최병환 , 김태용 , 민동욱 , 정영균
IPC分类号： H03H7/18
CPC分类号： H03H7/18 , H01P1/20 , H03H9/30 , H03H11/22
摘要： PURPOSE: A digital phase displacer for K bandwidth is provided to limit insertion loss to -5plus or minus1dB, reflection loss of minimum input to -12dB and average RMS phase error to 8deg. CONSTITUTION: In a digital phase displacer for K bandwidth, a 22.5deg phase displacer(100) converts from a N-type low pass filter into a high pass filter responding to a power supply control signal(Q1,Q1_), thereby displacing the phase of the super high frequency of K bandwidth from an input(Input) by 22.5deg. A 45deg phase displacer(200) converts from a N-type low pass filter into a high pass filter responding to a power supply control signal(Q2,Q2_), thereby displacing the phase of the super high frequency from the 22.5deg phase displacer(100) by 45deg. A 90deg phase displacer(300) converts from a N-type low pass filter into a high pass filter responding to a power supply control signal(Q3,Q3_), thereby displacing the phase of the super high frequency from the 45deg phase displacer(200) by 90deg. A 180deg phase displacer(400) converts from a N-type low pass filter into a high pass filter responding to a power supply control signal(Q4,Q4_), thereby displacing the phase of the super high frequency from the 90deg phase displacer(300) by 180deg and sends the result to an output(Output).
摘要翻译：目的：提供K带宽的数字相位置换器，将插入损耗限制在-5plus或-1dB，最小输入的反射损耗降至-12dB，平均RMS相位误差降至8deg。构成：在用于K带宽的数字相位置换器中，22.5度相位置换器（100）响应于电源控制信号（Q1，Q1_）将N型低通滤波器转换成高通滤波器，从而使相位的超高频K带宽从输入（输入）22.5度。 45度相位置换器（200）根据电源控制信号（Q2，Q2_）将N型低通滤波器转换成高通滤波器，从而将超高频相位从22.5度相位置换器（ 100）45度。 90度相位置换器（300）根据电源控制信号（Q3，Q3_）将N型低通滤波器转换成高通滤波器，从而使来自45度相位置换器（200）的超高频相位移位）90度 180度相位置换器（400）根据电源控制信号（Q4，Q4_）将N型低通滤波器转换成高通滤波器，从而将超高频相位从90度相位置换器（300 ）180deg，并将结果发送到输出（Output）。

4. 发明公开

KR1020030048758A 표면탄성파 필터의 잡음 방지 장치 无效
标题翻译：防止表面声波滤波器噪声的装置
公开(公告)号：KR1020030048758A
公开(公告)日：2003-06-25
申请号：KR1020010078771
申请日：2001-12-13
申请人： 엘지이노텍 주식회사
发明人： 오세창
IPC分类号： H03H9/64
CPC分类号： H03H9/64 , H03H9/14541 , H03H9/25 , H03H9/30
摘要： PURPOSE: An apparatus for preventing noise of a surface acoustic wave filter is provided to prevent characteristics variation between plural filters and prevent the noise due to spurious frequency by forming a metal bar to transmit a signal between plural filters and forming a shield portion made of sound absorbing material. CONSTITUTION: Two or more filter portions(11,12) are arranged on a surface of one piezoelectric substrate(10). The filter portions(11,12) are serially connected to each other by a metal bar(50). The metal bar(50) is used for transmitting a signal. A shield portion(40) is formed between the filter portions(11,12) in order to shield the noise. The shield portion(40) is formed by coating a noise absorbing material on the piezoelectric substrate(10). The metal bar(50) and the filter portions(11,12) are simultaneously formed with patterns.
摘要翻译：目的：提供一种用于防止表面声波滤波器的噪声的装置，以防止多个滤波器之间的特性变化，并通过形成金属棒来在多个滤波器之间传输信号并形成由声音形成的屏蔽部分来防止由于杂散频率引起的噪声吸收材料。构成：在一个压电基板（10）的表面上设置两个以上的过滤部（11,12）。过滤器部分（11,12）通过金属棒（50）彼此串联连接。金属棒（50）用于发送信号。在过滤器部分（11,12）之间形成屏蔽部分（40）以屏蔽噪声。屏蔽部分（40）通过在压电基板（10）上涂覆噪声吸收材料而形成。金属棒（50）和过滤器部分（11,12）同时形成图案。

5. 发明公开

KR1020010093566A 표면탄성파 필터의 흡음제 구조 失效
标题翻译：用于表面声波滤波器的吸收结构
公开(公告)号：KR1020010093566A
公开(公告)日：2001-10-29
申请号：KR1020000016229
申请日：2000-03-29
申请人： 엘지이노텍 주식회사
发明人： 오세창 , 김부영
IPC分类号： H03H9/64
CPC分类号： H03H9/64 , H03H3/08 , H03H9/1092 , H03H9/30
摘要： PURPOSE: An absorber structure for a surface acoustic wave(SAW) filter is provided to improve the performance of the filter by absorbing a reflective wave reflected from a primary absorber in a secondary absorber and minimizing a reflective wave reflected to an IDT(Inter Digital Transducer). CONSTITUTION: An input IDT(2) converts an external electric signal into a mechanical signal. An output IDT(4) converts a filtered mechanical signal into an electric signal. A ground bar(6) is installed between the input IDT(2) and the output IDT(4) for performing a ground operation. The first absorber(8) absorbs a reflective wave reflected from the input IDT(2) and the output IDT(4). The second absorber(10) reabsorbs a reflective wave reflected from the first absorber(8).
摘要翻译：目的：提供一种用于表面声波（SAW）滤波器的吸收体结构，以通过吸收从二次吸收器中的主吸收器反射的反射波来最小化反射到IDT的反射波（Inter Digital Transducer ）。构成：输入IDT（2）将外部电信号转换为机械信号。输出IDT（4）将经滤波的机械信号转换为电信号。在输入IDT（2）和输出IDT（4）之间安装接地棒（6），用于进行地面操作。第一吸收器（8）吸收从输入IDT（2）和输出IDT（4）反射的反射波。第二吸收器（10）重新吸收从第一吸收器（8）反射的反射波。

6. 发明公开

KR1020010037951A 표면탄성파 듀플렉서 및 그의 제조방법 失效
标题翻译：表面声波复用器及其制造方法
公开(公告)号：KR1020010037951A
公开(公告)日：2001-05-15
申请号：KR1019990045731
申请日：1999-10-21
申请人： 주식회사 한국전자홀딩스
发明人： 이만형
IPC分类号： H03H9/30
CPC分类号： H03H9/30 , H03H3/08 , H03H9/02992 , H03H9/64
摘要： PURPOSE: A surface acoustic wave duplexer and a method for manufacturing the same are provided to uniformly maintain the impedance of a micro-strip line by attaching a lead frame to the micro-strip line. CONSTITUTION: A transmitting filter signal pattern(21b), a receiving filter signal pattern(22b), an antenna signal pattern(23b) and a grounded pattern are formed on an underside and an upper surface of a substrate(20). A micro-strip line pattern(26) for the phase matching is formed at the underside of the substrate(20). A perforation hole is formed at both ends of the micro-strip line pattern(26). A thick layer is formed on the surface of the substrate. Then, a transmitting filter signal pattern, a receiving filter signal pattern, an antenna signal pattern and a grounded pattern are formed on the thick layer. A lead frame(50) is fixed to a lower portion of the substrate(20) and the micro-strip line pattern(26) is positioned in an air layer formed at an inner side of the lead frame(50). A transmitting filer and a receiving filter are fixed to the substrate(20) and are wire-bonded.
摘要翻译：目的：提供一种表面声波双工器及其制造方法，以通过将引线框架附接到微带线来均匀地保持微带线的阻抗。构成：在基板（20）的下表面和上表面上形成发送滤波器信号图案（21b），接收滤波器信号图案（22b），天线信号图案（23b）和接地图案。用于相位匹配的微带线图案（26）形成在基底（20）的下侧。在微带线图案（26）的两端形成穿孔。在基板的表面上形成厚层。然后，在厚层上形成发射滤波器信号模式，接收滤波器信号模式，天线信号模式和接地模式。引线框架（50）固定到基板（20）的下部，微带线图案（26）位于形成在引线框架（50）的内侧的空气层中。传输滤波器和接收滤波器固定到基片（20）上并进行导线接合。

7. 发明公开

KR1020040066527A 변/복조 기술을 통한 대역 가변이 가능한 세라믹 필터회로 有权
标题翻译：陶瓷过滤器电路通过使用调制/解调方法更换带
公开(公告)号：KR1020040066527A
公开(公告)日：2004-07-27
申请号：KR1020030003612
申请日：2003-01-20
申请人： 엘아이지넥스원 주식회사
发明人： 김기범
IPC分类号： H03H9/30
CPC分类号： H03H9/30 , H03H9/542 , H03H9/545
摘要： PURPOSE: A ceramic filter circuit for changing a band by using a modulation/demodulation method is provided to change a band pass region and a band limit region by using the modulation/demodulation method. CONSTITUTION: A ceramic filter circuit for changing a band by using a modulation/demodulation method includes a first multiplier, a first waveform generator, a ceramic filter, a second multiplier, a second waveform generator, and an amplification and low pass filter. The first multiplier(110) is used for converting a baseband signal by multiplying the baseband signal by a carrier signal. The first waveform generator(120) is used for generating the carrier signal to the first multiplier. The ceramic filter(130) is used for filtering an output signal of the first multiplier. The second multiplier(140) is used for converting an output signal of the ceramic filter by multiplying the output signal of the ceramic filter by the carrier signal. The second waveform generator(150) is used for generating the carrier signal and supplying it to the second multiplier. The amplification and low pass filter(160) includes a low pass filter to compensate the insertion loss of the ceramic filter and remove the carrier frequency signal.
摘要翻译：目的：提供一种通过使用调制/解调方法改变频带的陶瓷滤波器电路，以通过使用调制/解调方法来改变带通区域和频带限制区域。构成：用于通过调制/解调方法改变频带的陶瓷滤波器电路包括第一乘法器，第一波形发生器，陶瓷滤波器，第二乘法器，第二波形发生器和放大和低通滤波器。第一乘法器（110）用于通过将基带信号乘以载波信号来转换基带信号。第一波形发生器（120）用于向第一乘法器产生载波信号。陶瓷滤波器（130）用于对第一乘法器的输出信号进行滤波。第二乘法器（140）用于通过将陶瓷滤波器的输出信号乘以载波信号来转换陶瓷滤波器的输出信号。第二波形发生器（150）用于产生载波信号并将其提供给第二乘法器。放大和低通滤波器（160）包括低通滤波器以补偿陶瓷滤波器的插入损耗并去除载波频率信号。

8. 发明公开

KR1020020072056A 표면탄성파 필터 无效
标题翻译：表面声波滤波器
公开(公告)号：KR1020020072056A
公开(公告)日：2002-09-14
申请号：KR1020010012018
申请日：2001-03-08
申请人： 엘지이노텍 주식회사
发明人： 김주일
IPC分类号： H03H9/64
CPC分类号： H03H9/64 , H03H9/02779 , H03H9/1092 , H03H9/30 , H03H9/6496
摘要： PURPOSE: A surface acoustic wave (SAW) filter is provided to randomly reflect a triple transit echo generated at both ends of input and output terminals of the SAW filter in the form of saw tooth. CONSTITUTION: A surface acoustic wave filter includes a piezoelectric substrate, an input inter digital transducer (IDT)(11a) formed on the piezoelectric substrate in the form of pattern for converting an electric signal into a surface acoustic wave (SAW), an output IDT(11b) for a SAW generated from the input IDT(11a) into an electric signal and a pair of reflectors(12a,12b) formed in the form of saw tooth at sides of the piezoelectric substrate around the input and output IDTs(11a,11b).
摘要翻译：目的：提供表面声波（SAW）滤波器，以随机反映锯齿形式的SAW滤波器的输入和输出端两端产生的三通道回波。构成：表面声波滤波器包括压电基板，形成在压电基板上的输入数字式换能器（11a），其形式用于将电信号转换成声表面波（SAW），输出IDT （11b），用于从输入IDT（11a）产生的SAW变为电信号;以及一对反射器（12a，12b），其形成为在输入和输出IDT（11a，12b）周围的压电基板的侧面处的锯齿形， 11B）。

9. 发明公开

KR1020010037952A 표면탄성파 듀플렉서 및 그의 제조방법 失效
标题翻译：表面声波复用器及其制造方法
公开(公告)号：KR1020010037952A
公开(公告)日：2001-05-15
申请号：KR1019990045732
申请日：1999-10-21
申请人： 주식회사 한국전자홀딩스
发明人： 이만형
IPC分类号： H03H9/30
CPC分类号： H03H9/30 , H03H3/08 , H03H9/02992 , H03H9/64
摘要： PURPOSE: A surface acoustic wave duplexer and a method for manufacturing the same are provided to optimize the function of the surface acoustic wave duplexer by achieving a phase matching circuit. CONSTITUTION: A transmitting filter signal pattern, a receiving filter signal pattern, an antenna signal pattern and a grounded pattern are formed on an underside and an upper surface of the first substrate layer(20). A grounded pattern is formed at an underside of the second substrate layer(30). At the same time, a micro-strip line pattern is formed on an upper surface of the second substrate layer(30) and a grounded pattern is formed at a portion of the second substrate layer(30) to which a signal transmitting filter(61) and a signal receiving filer are fixed. Then, the second substrate layer(30) is attached to an upper surface of the first substrate layer(20). Then, the signal transmitting filter(61) and the signal receiving filer are fixed to the grounded pattern formed on the surface of the second substrate layer(30). A ceramic cap(40) is fixed to a peripheral area of the first substrate layer(20).
摘要翻译：目的：提供一种表面声波双工器及其制造方法，通过实现相位匹配电路来优化声表面波双工器的功能。构成：在第一衬底层（20）的下表面和上表面上形成发射滤波器信号图案，接收滤波器信号图案，天线信号图案和接地图案。接地图形形成在第二基底层（30）的下侧。同时，在第二衬底层（30）的上表面上形成微带线图形，并且在第二衬底层（30）的一部分处形成接地图案，信号发射滤波器（61））和信号接收滤波器是固定的。然后，第二基板层（30）附接到第一基板层（20）的上表面。然后，信号发送滤波器（61）和信号接收滤波器固定到形成在第二基板层（30）的表面上的接地图案。陶瓷盖（40）固定到第一基板层（20）的周边区域。

10. 发明公开

KR1020010029235A 피이드백 회로가 있는 능동 인버터를 이용한 고주파용 여파기 회로 失效
标题翻译：使用其反馈电路的有源逆变器的高频滤波电路
公开(公告)号：KR1020010029235A
公开(公告)日：2001-04-06
申请号：KR1019990041951
申请日：1999-09-30
申请人： 윤상원
发明人： 윤상원 , 전영훈
IPC分类号： H03H11/00
CPC分类号： H03H9/205 , H03H9/30 , H03H9/46 , H03H9/58
摘要： PURPOSE: A filter circuit for high frequency using active inverter which has a feedback circuit is provided to amplify desired frequency component by removing unnecessary frequency component for each kind of transceivers. CONSTITUTION: In a filter circuit for high frequency, an active inverter(303) is connected between resonators(302,307) and resonators(304,313). The active inverter(303) has the first serial feedback circuit(310), the second serial feedback circuit(311), the third serial feedback circuit(312) and a parallel feedback circuit(308). The second serial feedback circuit(311), an active device(309) and the third serial feedback circuit(312) are coupled each other. The first serial feedback circuit(310) is connected to the active device(309) to form the parallel feedback circuit(308). Therefore the filter circuit for high frequency amplifies desired frequency component by removing unnecessary frequency component for each kind of transceivers.
摘要翻译：目的：提供一种具有反馈电路的高频使用有源反相器的滤波电路，通过去除各种收发器的不必要的频率分量来放大所需的频率分量。构成：在用于高频的滤波电路中，有源反相器（303）连接在谐振器（302,307）和谐振器（304,313）之间。有源反相器（303）具有第一串行反馈电路（310），第二串行反馈电路（311），第三串行反馈电路（312）和并行反馈电路（308）。第二串行反馈电路（311），有源器件（309）和第三串行反馈电路（312）彼此耦合。第一串行反馈电路（310）连接到有源器件（309）以形成并行反馈电路（308）。因此，用于高频的滤波器电路通过去除各种收发器的不必要的频率分量来放大所需的频率分量。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式