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51. 发明授权

US3750078A Radio-frequency attenuator 失效
标题翻译：无线电频率衰减器
公开(公告)号：US3750078A
公开(公告)日：1973-07-31
申请号：US3750078D
申请日：1972-01-10
申请人： BOURNS INC
发明人： BRUDER F
IPC分类号： H01C10/20 , H01C10/34 , H03H7/24 , H01C5/00
CPC分类号： H01C10/20 , H01C10/34 , H03H7/24
摘要： A simple single-turn attenuator device having a single rotor carrying three interconnected resistive elements on a hightemperature resistant ceramic rotor plate and positioned for simultaneous arcuate movement past respective wiper-terminal members fixed in the attenuator housing. The attenuator is adapted to replace ganged-potentiometer devices; and may include on the rotor a fixed-value resistor element in series with one of the resistive elements.
摘要翻译：一种简单的单匝衰减器器件，其具有单个转子，其在耐高温陶瓷转子板上承载三个互连的电阻元件，并且定位成用于同时弓形移动通过固定在衰减器壳体中的相应擦拭器端子构件。衰减器适用于替代联动电位器装置; 并且可以在转子上包括与电阻元件之一串联的固定值电阻元件。

52. 发明授权

US3740676A Continuously variable resistance attenuator using lossy transmission line and having constant signal transit time 失效
标题翻译：连续可变电阻衰减器使用损耗传输线并具有恒定信号传输时间
公开(公告)号：US3740676A
公开(公告)日：1973-06-19
申请号：US3740676D
申请日：1972-03-29
申请人： TEKTRANIX INC
发明人： GARUTS V
IPC分类号： H01C10/26 , H01P1/22 , H03H7/24 , H03H7/26
CPC分类号： H01C10/26 , H01P1/227 , H03H7/24
摘要： A continuously variable resistance attenuator is described in which the signal conductor of a distortionless lossy transmission line is employed as an attenuation resistance uniformly distributed along such line, and the connection of an output contact is moved along such signal conductor to change the attenuator setting. The transmission line has a plurality of separate shunt resistors of equal value extending between the signal conductor and the ground conductor of the line and uniformly distributed along the line to provide a lossy line of uniform characteristic impedance. The input end of such lossy line is connected to a non-lossy line of the same characteristic impedance, and its other end is terminated in a termination resistor equal to such characteristic impedance. In one embodiment, the lossy transmission line is moved relative to a fixed input contact and a fixed output contact to provide a constant transit time for the signal to pass through the attenuator, due to the fixed distance between such contacts and to reduce the size of the contacts for improved high frequency response. The input contact is provided by a fixed portion of the non-lossy line which engages its movable portion attached to the lossy line to provide a transmission line stretcher of variable length.
摘要翻译：描述了一种连续可变电阻衰减器，其中采用无失真损耗传输线的信号导体作为沿着这种线均匀分布的衰减电阻，并且输出触点的连接沿着这种信号导体移动以改变衰减器设置。传输线具有在信号导体和线的接地导体之间延伸的相等值的多个分离的分流电阻器，并且沿着线均匀分布以提供均匀特性阻抗的有损线。这种有损线路的输入端连接到相同特性阻抗的无损线路，另一端端接在等于这种特性阻抗的终端电阻器中。在一个实施例中，有损传输线相对于固定输入触点和固定输出触点移动，以便由于这些触点之间的固定距离而使信号通过衰减器恒定的传播时间并减小触点提高了高频响应。输入触点由无损线的固定部分提供，其与其附接到有损线的可移动部分接合，以提供可变长度的传输线拉伸器。

53. 发明授权

US3693058A Variable capacitor including a rotatable dielectric disc 失效
标题翻译：可变电容器，包括可旋转电介质盘
公开(公告)号：US3693058A
公开(公告)日：1972-09-19
申请号：US3693058D
申请日：1971-01-25
申请人： TEKTRONIX INC
发明人： WILHOIT DARREL I
IPC分类号： H01G5/06 , H03H7/24
摘要： A variable capacitor forming part of an attenuator section includes a rotatable ceramic disc having a metalized configuration on its upper side which may be mutually juxtaposed with respect to a pair of metalized portions on a ceramic substrate therebelow. The metalized ceramic disc is superimposed by a rotatable plastic body engageable for rotating the disc and having an extension depending through an aperture in the substrate to provide an axis portion for the combined rotatable member. A spring is interposed between a grounded metal cover and a portion of the plastic body, urging the ceramic disc toward the substrate.
摘要翻译：形成衰减器部分的可变电容器包括其上侧具有金属化构造的可旋转陶瓷盘，其可以相对于其下方的陶瓷衬底上的一对金属化部分相互并置。金属化陶瓷盘被可旋转的塑料体重叠，可旋转的塑料体可旋转盘并且具有依靠衬底中的孔的延伸部，以提供用于组合的可旋转构件的轴线部分。在接地金属盖和塑料体的一部分之间插入弹簧，将陶瓷盘推向基板。

54. 发明授权

US3680013A Film attenuator 失效
标题翻译：电影衰减器
公开(公告)号：US3680013A
公开(公告)日：1972-07-25
申请号：US3680013D
申请日：1971-02-16
申请人： WELWYN ELECTRIC LTD
发明人： PYE WALTER ARNOLD
IPC分类号： H01C7/00 , H03H7/24 , H01P1/22
CPC分类号： H01C7/00 , H03H7/24 , Y10T29/49099
摘要： An electrical film attenuator or other film resistor network comprising an insulating substrate having adherently mounted thereon a single film resistive element, said element being provided with at least three terminals in electrical contact therewith and, on said element and in electrical contact therewith, an electrically conductive layer dividing up said element into three distinct portions two of which will have the same electrical resistance value after removal of part of said element at a locus midway between two of said terminals, one of which being an input and the other an output terminal, the third portion of said electrical resistive element being shaped so as to enable its electrical resistance value to be adjusted by removing part of it, each of said first two portions being in electrical contact with only one of said two terminals, the third portion being electrically connected to the remaining terminal or terminals.
摘要翻译：一种电薄膜衰减器或其它薄膜电阻网络，其包括绝缘衬底，其上贴有一个单一的薄膜电阻元件，所述元件设置有至少三个与其接触的端子，并且在所述元件上并与其电接触，导电层将所述元件分成三个不同的部分，其中两个之间将具有相同的电阻值，在部分所述元件在两个所述端子之间的中间位置移除所述元件的一部分之后，其中一个是输入端，另一个是输出端子所述电阻元件的第三部分被成形为能够通过去除其一部分来调节其电阻值，每个所述前两个部分仅与所述两个端子中的一个电接触，所述第三部分电连接到剩余的终端或终端。

55. 发明授权

US3599125A Thin film resistance attenuator 失效
标题翻译：薄膜电阻衰减器
公开(公告)号：US3599125A
公开(公告)日：1971-08-10
申请号：US3599125D
申请日：1969-11-03
申请人： NIPPON ELECTRIC CO
发明人： YOSHIDA NOBUYOSHI
IPC分类号： H01C17/24 , H01P1/22 , H03H7/24 , H01P7/00
CPC分类号： H01P1/227
摘要： A thin film resistance attenuator comprises more than two bandshaped insulation regions or band-shaped conduction regions selectively provided therein. The lengths of these regions are adjusted whereby the characteristic impedance and attenuation value of the attenuator are independently adjusted.

56. 发明授权

US3538481A Externally switched variable attenuators 失效
标题翻译：外部开关变量衰减器
公开(公告)号：US3538481A
公开(公告)日：1970-11-03
申请号：US3538481D
申请日：1968-12-09
申请人： SINGER CO
发明人： FERNANDO MAURICE M
IPC分类号： H03H7/24 , H03H7/25
CPC分类号： H03H7/24 , H03H7/25

57. 发明授权

US3529266A Continuously and dynamically variable pin diode attenuator 失效
标题翻译：连续和动态可变引脚二极管衰减器
公开(公告)号：US3529266A
公开(公告)日：1970-09-15
申请号：US3529266D
申请日：1968-08-12
申请人： US ARMY
发明人： KING FRED N
IPC分类号： H03H7/25 , H01P1/22 , H03H7/24
CPC分类号： H03H7/255

58. 发明授权

US3449697A Attenuator wherein shunt capacitive loading cancels series capacitive signal leak at higher frequencies 失效
标题翻译：衰减器电容负载取消系统电容信号在较高频率下泄漏
公开(公告)号：US3449697A
公开(公告)日：1969-06-10
申请号：US3449697D
申请日：1967-10-19
申请人： OHMEGA LAB
发明人： MISON RICHARD M
IPC分类号： H01P1/22 , H03H7/24 , H04B3/04
CPC分类号： H03H7/24 , H01P1/22

59. 发明授权

US3432756A Continuous microwave attenuator 失效
标题翻译：连续微波衰减器
公开(公告)号：US3432756A
公开(公告)日：1969-03-11
申请号：US3432756D
申请日：1966-11-02
申请人： US ARMY
发明人： CHIN BALL
IPC分类号： H01P1/23 , H03H7/24 , H04B1/06 , H01P1/22 , H04B1/16
CPC分类号： H01P1/23 , H03H7/24

60. 发明授权

US3369173A Attenuator apparatus 失效
标题翻译：衰减器装置
公开(公告)号：US3369173A
公开(公告)日：1968-02-13
申请号：US50878465
申请日：1965-11-19
申请人： TEKTRONIX INC
发明人： ANDREWS ROLAND E
IPC分类号： H03H7/24
CPC分类号： H03H7/24

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