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41. 发明授权

US5892419A Integral resonators for a filter and a method for manufacturing thereof 失效
标题翻译：用于滤波器的积分谐振器及其制造方法
公开(公告)号：US5892419A
公开(公告)日：1999-04-06
申请号：US678763
申请日：1996-07-11
申请人： Anssi Kotanen , Markku Tiihonen
发明人： Anssi Kotanen , Markku Tiihonen
IPC分类号： H01P1/202 , H01P11/00 , H01P1/20 , H01P1/213
CPC分类号： H01P11/007 , H01P1/202 , Y10T29/49016
摘要： The invention relates to a filter, a method for manufacturing a filter, a resonator construction, and a method for manufacturing a resonator construction. The filter comprises a shell construction and a plurality of resonators mounted in the shell construction for forming a multi-circuit filter. The filter comprises a connecting portion which combines the resonators and is integral with the resonators.
摘要翻译：本发明涉及滤波器，滤波器的制造方法，谐振器结构以及谐振器结构的制造方法。过滤器包括壳体结构和安装在壳体结构中用于形成多回路过滤器的多个谐振器。滤波器包括组合谐振器并与谐振器成一体的连接部分。

42. 发明授权

US5496796A High Tc superconducting band reject ferroelectric filter (TFF) 失效
标题翻译：高Tc超导带状铁电滤波器（TFF）
公开(公告)号：US5496796A
公开(公告)日：1996-03-05
申请号：US309979
申请日：1994-09-20
申请人： Satyendranath Das
发明人： Satyendranath Das
IPC分类号： H01P1/202 , H01P1/203 , H01P7/04 , H01B12/02
CPC分类号： H01P1/2039 , H01P1/202 , H01P7/04 , Y10S505/70 , Y10S505/701 , Y10S505/866
摘要： The design of a high Tc superconducting band reject tunable ferroelectric filter (TFF) is presented. The band reject TFF consists of a main microstrip line on a dielectric substrate. One or more half wavelength microstrip resonators, on a ferroelectric substrate, is coupled to the main microstrip line. At a resonant frequency of a resonator, a short circuit is presented on the main microstrip line resulting in a rejection of signal of that frequency. By applying a bias voltage to a resonator, the frequency of the resonator and, as such, the reject band of the filter is changed. Different resonators can be tuned to different frequencies.
摘要翻译：提出了一种高Tc超导波段可调谐铁电滤波器（TFF）的设计。带隙TFF由电介质基板上的主微带线组成。在铁电衬底上的一个或多个半波长微带谐振器耦合到主微带线。在谐振器的谐振频率下，在主微带线上呈现短路，导致该频率信号的抑制。通过向谐振器施加偏置电压，谐振器的频率和滤波器的滤波器的频率被改变。不同的谐振器可以调谐到不同的频率。

43. 发明授权

US5227748A Filter with electrically adjustable attenuation characteristic 失效
标题翻译：具有电动可调衰减特性的滤波器
公开(公告)号：US5227748A
公开(公告)日：1993-07-13
申请号：US744945
申请日：1991-08-14
申请人： Peter Sroka
发明人： Peter Sroka
IPC分类号： H01P1/205 , H01P1/202 , H01P7/04 , H03H7/12
CPC分类号： H03H7/12 , H01P1/202 , H03H7/1775 , H03H7/1791
摘要： A tunable bandstop/bandpass filter particularly suitable for use in duplex applications where the transmit and receive bands are closely located, comprises two or more reactively coupled quarter wavelength resonators e.g. dielectric resonators. One end of each resonator is coupled to ground potential. The opposite (open-circuit) end of the resonators is coupled to adjacent resonators via coupling capacitors. Voltage controlled tuning means, e.g. a varactor and series connected capacitor, are coupled in parallel to the open circuit end of each of the resonators respectively. The stopband/passband of the filter can thus be adjusted by varying the voltage applied to the tuning means. Additionally, in the case of a bandpass filter a tunable zero (or "notch") may be introduced into the transmission response by including varactors coupled in series to the open-circuit end of the resonators.

44. 发明授权

US5023579A Integrated bandpass/lowpass filter 失效
标题翻译：集成带通/低通滤波器
公开(公告)号：US5023579A
公开(公告)日：1991-06-11
申请号：US550720
申请日：1990-07-10
申请人： Salvatore Bentivenga , Michael J. Bentivenga
发明人： Salvatore Bentivenga , Michael J. Bentivenga
IPC分类号： H01P1/202 , H01P1/205
CPC分类号： H01P1/202 , H01P1/205
摘要： A bandpass/lowpass filter comprises a bandpass filter with two or more resonators with the first and last resonators coupled to associated connectors. Corresponding lowpass filters are positioned within the first and last resonators, wherein each lowpass filter comprises a plurality of low impedance and high impedance elements. A disk emanates from each of these integrated lowpass filters so as to couple the filtered electromagnetic energy to the bandpass filter. The overall result is an integrated filter having a desired bandpass with significant suppression of spurious frequencies. The overall integrated filter is significantly smaller than conventional filters using external inline lowpass filters.
摘要翻译：带通/低通滤波器包括具有两个或多个谐振器的带通滤波器，其中第一和最后谐振器耦合到相关联的连接器。对应的低通滤波器位于第一和最后谐振器内，其中每个低通滤波器包括多个低阻抗和高阻抗元件。从这些集成的低通滤波器中的每一个发出盘，以将滤波的电磁能耦合到带通滤波器。总体结果是具有期望带通并具有显着抑制杂散频率的集成滤波器。整体集成滤波器显着小于使用外部直列低通滤波器的常规滤波器。

45. 发明授权

US4683450A Line with distributed low-pass filter section wherein spurious signals are attenuated 失效
标题翻译：具有分散低通滤波器部分的线路，其中寄生信号被衰减
公开(公告)号：US4683450A
公开(公告)日：1987-07-28
申请号：US509217
申请日：1983-06-29
申请人： Jean-Joseph Max , Arvind Shah
发明人： Jean-Joseph Max , Arvind Shah
IPC分类号： H01B11/12 , H01B11/18 , H01P1/202 , H01P1/201
CPC分类号： H01P1/202 , H01B11/12 , H01B11/1895
摘要： For suppression of high-frequency spurious signals (noise) present on an electrical transmission line, the line incorporates at least one section comprising a distributed low-pass filter. This section is constructed so that its wave impedance (Z.sub.1) has a different value than the wave impedance (Z.sub.0) of the neighboring line sections. This filter line section additionally provides considerable dielectric losses and/or skin effect losses. At both ends of the filter line section, at which the wave impedance changes, multiple reflections arise that attenuate the high-frequency spurious signals (noise). The dielectric or skin effect losses produce strong attenuation of the undesired resonances that arise from the reflections, as well as further attenuation of spurious signals in the highest frequency region.
摘要翻译：为了抑制存在于电传输线路上的高频杂散信号（噪声），该线路包括至少一个包括分布式低通滤波器的部分。该部分被构造成使得其波阻抗（Z1）具有与相邻线段的波阻抗（Z0）不同的值。该滤波器线路部分另外提供相当大的介电损耗和/或皮肤效应损耗。在波形阻抗变化的滤波器线路部分的两端，会产生衰减高频杂散信号（噪声）的多次反射。电介质或皮肤效应损失会产生由反射产生的不需要的共振的强衰减，以及在最高频率区域中杂散信号的进一步衰减。

46. 发明授权

US4559506A Temperature compensated coaxial cable isolator 失效
标题翻译：温度补偿同轴电缆隔离器
公开(公告)号：US4559506A
公开(公告)日：1985-12-17
申请号：US628005
申请日：1984-07-05
申请人： Raymond G. Capek
发明人： Raymond G. Capek
IPC分类号： H01P1/202 , H03H1/00 , H03H7/01 , H01P5/02
CPC分类号： H01P1/202 , H03H1/0007
摘要： A coaxial cable isolator includes a stepped diameter tubular outer conductive element and a threaded smaller diameter inner conductive element coaxially aligned therewith to form an interruption. A ceramic structure is positioned in the interruption and includes three ceramic capacitive elements, each having a different temperature coefficient selected to provide a minimum of 3.8 and maximum of 5.0 nanofarads of capacitance over the 0 degree Centigrade to +45 degree Centigrade operating temperature range of the isolator. Two ferrite elements for EMI absorption are sandwiched between the three capacitive elements.
摘要翻译：同轴电缆隔离器包括阶梯形直径的管状外部导电元件和与其同轴对准的螺纹较小直径的内部导电元件以形成中断。陶瓷结构位于中断位置，并且包括三个陶瓷电容元件，每个陶瓷电容元件具有选择的不同温度系数，以在0摄氏度到+45摄氏度的工作温度范围内提供最小3.8和最大5.0纳特电容隔离器用于EMI吸收的两个铁氧体元件夹在三个电容元件之间。

47. 发明授权

US4449108A Band-stop filter for VHF-UHF band 失效
标题翻译： VHF-UHF频段的带通滤波器
公开(公告)号：US4449108A
公开(公告)日：1984-05-15
申请号：US348768
申请日：1982-02-16
申请人： Haruyoshi Endo , Mitsuo Makimoto , Ko Kikuchi , Sadahiko Yamashita
发明人： Haruyoshi Endo , Mitsuo Makimoto , Ko Kikuchi , Sadahiko Yamashita
IPC分类号： H01P1/213 , H01P1/20 , H01P1/202 , H03H7/01 , H03H7/46 , H01P7/04
CPC分类号： H01P1/202
摘要： A band-stop filter for VHF-UHF band comprises at least three series resonance circuits and at least two transmission lines each connected between the series resonance circuits. One of the transmission lines, which is connected to the input terminal of the band-stop filter, has an electrical length which is shorter or longer than the quarter wavelength of the center frequency of the stop band by more than 20 but less than 50 percent. When a band-stop filter comprises four transmission lines, one of the transmission lines, which is connected to the output terminal of the band-stop filter, has the same length as the transmission line connected to the input terminal. With this arrangement, the band-stop filter exhibits a sharp attenuation characteristic in a frequency range below or above the center frequency. Other transmission lines, which are not directly connected to either the input terminal or the output terminal, may have a length which is shorter or longer than the quarter wavelength by 5 to 20 percent so as to provide a sharper attenuation characteristic.
摘要翻译：用于VHF-UHF频带的带阻滤波器包括至少三个串联谐振电路和至少两个连接在串联谐振电路之间的传输线。连接到带阻滤波器的输入端子的传输线之一具有比阻带的中心频率的四分之一波长短或长的电长度大于20但小于50％的电长度。当带阻滤波器包括四条传输线时，连接到带阻滤波器的输出端的传输线之一具有与连接到输入端的传输线相同的长度。通过这种布置，带阻滤波器在低于或高于中心频率的频率范围内表现出明显的衰减特性。不直接连接到输入端子或输出端子的其它传输线路可以具有比四分之一波长短或长于5％至20％的长度，以便提供更清晰的衰减特性。

48. 发明授权

US4399419A Line isolation and interference shielding for a shielded conductor system 失效
标题翻译：屏蔽导体系统的线路隔离和干扰屏蔽
公开(公告)号：US4399419A
公开(公告)日：1983-08-16
申请号：US282824
申请日：1981-07-13
申请人： Pierre Dobrovolny
发明人： Pierre Dobrovolny
IPC分类号： H01B11/18 , H01P1/202 , H01P1/22 , H03H7/01 , H01P1/215
CPC分类号： H01B11/1895 , H01P1/202 , H01P1/225
摘要： A method and structure is disclosed for isolating the shield of a shielded conductor system from a low frequency power source to which the shield may be connected. In one embodiment, the isolation technique includes providing an interruption in the conductor's shield and situating within the interruption dielectric and magnetically absorptive material so as to create at least a pair of capacitance across the interruption, and such that the capacitances are separated by magnetically absorptive material. In this manner, low frequency isolation is achieved and the field within the cable is shielded from ambient high frequency electromagnetic interference which could otherwise leak through the interruption into a desired high frequency signal path within the conductor. In other embodiments, at least some of the dielectric material forms part of a series resonator to improve attenuation of electromagnetic interference at low VHF frequencies.
摘要翻译：公开了一种用于将屏蔽导体系统的屏蔽与屏蔽可连接到的低频电源隔离的方法和结构。在一个实施例中，隔离技术包括在导体的屏蔽中提供中断并位于中断电介质和磁吸收材料内，以便在中断之间产生至少一对电容，并且使得电容被磁吸收材料分开。以这种方式，实现了低频隔离，并且电缆内的场屏蔽了环境高频电磁干扰，否则环境高频电磁干扰否则可能通过中断而泄漏到导体内的期望的高频信号路径。在其他实施例中，介电材料中的至少一些形成串联谐振器的一部分，以改善低VHF频率处的电磁干扰的衰减。

49. 发明授权

US4262266A Coaxial stub tuner 失效
标题翻译：同轴短线调谐器
公开(公告)号：US4262266A
公开(公告)日：1981-04-14
申请号：US81273
申请日：1979-10-02
申请人： Chern, Shy-Shiun
发明人： Chern, Shy-Shiun
IPC分类号： H01P1/202 , H01P5/04 , H01P1/20 , H01P7/04
CPC分类号： H01P5/04 , H01P1/202
摘要： A coaxial stub tuner assembly is comprised of a short circuit branch diametrically opposite an open circuit branch. The stub of the short circuit branch is tubular, and the stub of the open circuit branch is a rod which extends through the tubular stub into the open circuit branch. The rod is threaded at least at its outer end, and the tubular stub is internally threaded to receive the threads of the rod. The open circuit branch can be easily tuned by turning the threaded rod in the tubular stub to adjust the length of the rod extending into the open circuit branch.
摘要翻译：同轴短线调谐器组件包括与开路分支径向相对的短路分支。短路支路的短截线为管状，开路支路的短截线为延伸穿过管状短截线至开路支路的杆。杆至少在其外端处被螺纹连接，并且管状短柱内螺纹以接纳杆的螺纹。可以通过转动管状短截线中的螺杆来调节开路分支，以调节延伸到开路分支中的杆的长度。

50. 发明授权

US4147980A Redundant RF system for space application 失效
标题翻译：用于空间应用的冗余RF系统
公开(公告)号：US4147980A
公开(公告)日：1979-04-03
申请号：US814813
申请日：1977-07-11
申请人： Robert A. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Frosch , Charles W. Rook
发明人： Robert A. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Frosch , Charles W. Rook
IPC分类号： H01P1/202 , H04B1/50 , H04B1/74
CPC分类号： H04B1/50 , H01P1/202 , H04B1/74
摘要： An S-band radio frequency subsystem including two transmitters, two receivers and two antennas and capable of connecting either transmitter or receiver to either antenna while permitting simultaneous operation of a transmitter and a receiver. Circulator switches provide selection of a specific transmitter and receiver for connection to either a high gain or low gain antenna. Transmitter output filters, receiver input filters, and diplexers are combined to prevent radiation or coupling of unwanted transmitter and receiver signals and to provide isolation, permitting simultaneous operation of the transmitter and receiver. The filter elements are designed of constant diameter coaxial elements to meet demanding rejection, loss, power-handling and environmental characteristics.
摘要翻译： S波段射频子系统包括两个发射机，两个接收机和两个天线，并且能够将发射机或接收机连接到任一天线，同时允许发射机和接收机同时工作。循环器开关提供特定发射器和接收器的选择，用于连接到高增益或低增益天线。发射机输出滤波器，接收器输入滤波器和双工器被组合以防止不需要的发射器和接收器信号的辐射或耦合，并且提供隔离，允许发射器和接收器的同时操作。过滤元件设计为恒定直径的同轴元件，以满足苛刻的排除，损耗，动力处理和环境特性。

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