公开(公告)号：US5065125A

公开(公告)日：1991-11-12

申请号：US517590

申请日：1990-05-02

Applicant: R. Glenn Thomson ,  Paul Y. Tsoi

Inventor： R. Glenn Thomson ,  Paul Y. Tsoi

IPC: H01H36/00 ,  H01P1/12

CPC classification number: H01P1/125 ,  H01H36/0073

Abstract: C-, T- and S-switches have a connector or reed in each conducting path. The connector or reed contains a support for a permanent magnet. All of the magnets of the connectors have the same polarity. The connectors, supports and permanent reed magnets in the supports are contained within an RF cavity housing, which can be completely sealed from an actuator or, alternatively, the housing can be open to the actuator. The actuator has a circular shape and contains permanent magnets that correspond in their configuration to the reed magnets of the housing. At least two magnets of the actuator have different polarities. The actuator can be rotated by a motor to two or more positions. In one position, one or more of the reed magnets are attracted and one or more of the reed magnets are repelled. The switch is designed so that when a reed magnet is attracted, the conducting path in which the connector is located is interrupted and when a reed magnet is repelled, the conducting path is connected. Previous switches are more expensive to manufacture and more complex, thereby increasing the likelihood of premature failure. Previous switches do not have a housing that is completely sealed from an actuator.

公开(公告)号：US06897746B2

公开(公告)日：2005-05-24

申请号：US10465226

申请日：2003-06-20

Applicant: R. Glenn Thomson ,  Ming Yu

Inventor： R. Glenn Thomson ,  Ming Yu

IPC: H01P1/213 ,  H01P3/12 ,  H01P1/30

CPC classification number: H01P3/12 ,  H01P1/2138

Abstract: A waveguide assembly for operation over a range of temperatures includes a waveguide body and a plurality of restraining strips coupled to the waveguide body. The waveguide body includes a pre-curved narrow sidewall of material having a first coefficient of thermal expansion (CTE). The restraining strips are coupled to the waveguide body at first and second lateral points on either side of the pre-curved narrow sidewall laterally and are spaced apart along the length of the waveguide body, and are made from a material having a second CTE much less than the first CTE. Thus, when the temperature of the waveguide assembly changes, the restraining strips maintain a substantially constant lateral distance between said first and second lateral points over the range of temperatures such that as the length of the waveguide varies with temperature, the curvature of the pre-curved narrow sidewall also changes, causing the effective large dimension of the waveguide assembly to vary such that the combination of said changes results in a constant phase length for said waveguide body.

Abstract translation: 用于在一定温度范围内操作的波导组件包括波导体和耦合到波导体的多个限制条。 波导体包括具有第一热膨胀系数（CTE）的材料的预弯曲窄侧壁。 限制条在预弯曲的窄侧壁的任一侧上的第一和第二横向点在波导体上被耦合到波导体，并且沿着波导体的长度间隔开，并且由具有第二CTE的材料制成 比第一个CTE。 因此，当波导组件的温度改变时，限制条在温度范围内在所述第一和第二横向点之间保持基本上恒定的横向距离，使得随着波导的长度随着温度而变化， 弯曲的窄侧壁也改变，导致波导组件的有效大尺寸变化，使得所述变化的组合导致所述波导体的恒定相位长度。

公开(公告)号：US6049261A

公开(公告)日：2000-04-11

申请号：US82911

申请日：1998-05-22

Applicant: R. Glenn Thomson

Inventor： R. Glenn Thomson

IPC: H01P1/20 ,  H01P1/208 ,  H01P7/06

CPC classification number: H01P1/2084 ,  H01P1/208

Abstract: A device for changing the operating frequency of a microwave filter is mounted in a wall of a cavity of the filter. The device has a bellows that is located inside the cavity. The bellows contains an elongated member that extends outside the cavity to an actuator. The actuator can be temperature dependent and moves the elongated member either further into or further out of the cavity as desired. An interior end of the elongated member can be connected to the bellows or it can simply be in contact with the bellows without being connected. When the elongated member is in contact with the bellows and is not connected, when the elongated member moves outward, the bellows will return to a rest position due to its inherent spring. The bellows is sealed from an interior of the cavity. Filters using the device have one device located primarily for each mode in each cavity of the filter.

Abstract translation: 用于改变微波过滤器的工作频率的装置安装在过滤器的空腔的壁上。 该装置具有位于腔内的波纹管。 波纹管包含延伸到腔体外部的致动器的细长构件。 致动器可以是温度依赖性的，并且根据需要将细长构件进一步移入或进一步离开空腔。 细长构件的内端可以连接到波纹管，或者可以简单地与波纹管接触而不连接。 当细长构件与波纹管接触并且不连接时，当细长构件向外移动时，由于其固有的弹簧，波纹管将返回到静止位置。 波纹管从空腔的内部密封。 使用该装置的过滤器具有一个主要针对过滤器每个空腔中的每种模式的装置。