公开(公告)号：US11411647B2

公开(公告)日：2022-08-09

申请号：US17157544

申请日：2021-01-25

Applicant: COM DEV LTD.

Inventor： Thomas Ducellier ,  Sheng Hai Zheng ,  Brian MacKay

IPC: H04B10/00 ,  H04B10/118 ,  G02B23/02 ,  H04B7/185 ,  B64G1/10

Abstract: An apparatus for optical pointing is disclosed. The apparatus comprises a telescope, a transmission prism rotatably coupled to the telescope, and a rotatable mechanism operatively coupled to the telescope. The transmission prism is configured to rotate around a first rotation axis, and the rotatable mechanism is configured to rotate around a second rotation axis that is different than the first rotation axis.

公开(公告)号：US11215560B2

公开(公告)日：2022-01-04

申请号：US16100881

申请日：2018-08-10

Applicant: COM DEV LTD.

Inventor： Alan Scott

IPC: G01N21/64 ,  G01N21/25 ,  G01N21/62 ,  F21V8/00 ,  A61B5/00 ,  G01N33/50

Abstract: A portable imaging apparatus and system. A sample processing device has a reaction chamber configured to receive a sample and react the sample with a fluorescent compound that emits a specified wavelength of light when excited by light within an excitation band. An illumination source can be positioned to illuminate the reaction chamber when the sample processing device is positioned for imaging. A light guide can be positioned to face the reaction chamber and transfer the emitted light to an imaging detector. The light guide has a filter that blocks the wavelength of light from the illumination source and passes the fluorescent emitted light. The light guide unit defines an angular light acceptance range and is configured to constrain angular spreading of light.

公开(公告)号：US20210111704A1

公开(公告)日：2021-04-15

申请号：US16597481

申请日：2019-10-09

Applicant: COM DEV Ltd.

Inventor： Zhifu Zhou ,  Ming Yu

IPC: H03H9/64

Abstract: A multi-resonator filter has a signal input terminal, a signal output terminal, and a plurality of resonator components. The plurality of resonator components include an input resonator component coupled to the signal input terminal, an output resonator component coupled to the signal output terminal, and at least one intermediate resonator component coupled between the input resonator component and the output resonator component. The input resonator component, output resonator component and the at least one intermediate resonator component are arranged in a sequence to define a signal path between the signal input terminal and the signal output terminal. The at least one intermediate resonator component includes at least one multiple resonator component, where each multiple resonator component includes a pair of individual resonators coupled in parallel where each individual resonator in a given pair of individual resonators has the same resonant frequency.

公开(公告)号：US20060055281A1

公开(公告)日：2006-03-16

申请号：US10941860

申请日：2004-09-16

Applicant: Bahram Yassini

Inventor： Bahram Yassini

IPC: H02N1/00 ,  H01L41/04

CPC classification number: H01G5/16 ,  H01H59/0009 ,  H02N1/006

Abstract: A MEMS electrostatic actuator assembly for connection to a DC voltage supply includes a MEMS device and a capacitive element. The MEMS device has a conductive member and a restoring force element. The conductive member is continuously movable between first and second positions in response to the electrostatic force produced by the DC voltage supply. The restoring force element provides a restoring force to the conductive member to move it back to the first position. The capacitive element is coupled in series between the MEMS device and the DC voltage supply and is used to limit the electrostatic force produced within the MEMS device to a value substantially equal to the maximum restoring force provided by the restoring force element.

Abstract translation: 用于连接到DC电压源的MEMS静电致动器组件包括MEMS器件和电容元件。 MEMS器件具有导电构件和恢复力元件。 导电构件响应于由DC电压源产生的静电力而在第一和第二位置之间连续地移动。 恢复力元件向导电构件提供恢复力以将其移回到第一位置。 电容元件串联耦合在MEMS器件和DC电压源之间，并用于将在MEMS器件内产生的静电力限制到基本上等于由恢复力元件提供的最大恢复力的值。

公开(公告)号：US20050073378A1

公开(公告)日：2005-04-07

申请号：US10678109

申请日：2003-10-06

Applicant: David Smith ,  Ming Yu

Inventor： David Smith ,  Ming Yu

IPC: H01P7/10 ,  H01P1/20

CPC classification number: H01P7/10

Abstract: A half wave dielectric resonator assembly including a resonator cavity having a top surface and a bottom surface, an elongated cylindrical dielectric resonator positioned within said resonator cavity and first and second insulative supports to couple and insulate the ends of the cylindrical dielectric resonator from the resonator cavity. The dielectric resonator has a substantially small diameter to length ratio. The resonator assembly provides improved spurious performance and quality factor (Q) at a lower mass. A resonator filter is constructed using a plurality of these resonator assemblies, where adjacent pairs of said resonator cavities are separated from each other by a common cavity wall. By forming a first iris opening formed within a first common cavity wall and forming a second iris opening formed within a second common cavity wall having a position that is vertically offset from the position of the first iris, it is possible to reduce stray coupling.

Abstract translation: 包括具有顶表面和底表面的谐振腔的半波介电谐振器组件，位于所述谐振腔内的细长圆柱形介质谐振器和用于将圆柱形介质谐振器的端部与谐振器腔耦合和绝缘的第一和第二绝缘支撑件 。 介质谐振器具有基本上小的直径与长度的比率。 谐振器组件以较低的质量提供改进的杂散性能和质量因子（Q）。 谐振器滤波器使用多个这些谐振器组件构成，其中相邻的谐振器腔体对通过共同的空腔壁相互分离。 通过形成在第一公共空腔壁内形成的第一虹膜开口并且形成在具有垂直偏离第一虹膜位置的位置的第二公共空腔壁内形成的第二虹膜开口，可以减少杂散耦合。

公开(公告)号：US20040119551A1

公开(公告)日：2004-06-24

申请号：US10323825

申请日：2002-12-20

Applicant: Com Dev Ltd.

Inventor： Gordon Thomas Wray

IPC: H01P001/30

CPC classification number: H01P1/268

Abstract: A termination for absorbing electromagnetic energy provided by a transmission line and for transferring any resulting heat to a heat sink. The termination comprises a housing in communication with the transmission line for receiving the electromagnetic energy, and in communication with the heat sink for transferring the resulting heat thereto. The termination also includes a conductor disposed within the housing and cooperating with the housing for providing an internal transmission line structure for confining and guiding the electromagnetic energy within the termination. The termination also includes an absorber comprising a lossy dielectric. The absorber is disposed within the housing and is in communication with the internal transmission line for receiving the electromagnetic energy and absorbing the electromagnetic energy in accordance to an absorption profile of the termination. The absorber converts the absorbed energy into heat and is in communication with the housing for transferring the heat thereto.

Abstract translation: 用于吸收由传输线提供的电磁能并用于将任何产生的热量转移到散热器的终端。 终端包括与用于接收电磁能的传输线路连通的壳体，并且与散热器连通，用于将所产生的热量转移到其上。 终端还包括设置在壳体内并与壳体配合的导体，用于提供用于限制和引导终端内的电磁能的内部传输线结构。 终端还包括包含有损电介质的吸收体。 吸收器设置在壳体内并且与内部传输线路连通，用于接收电磁能量并根据终端的吸收曲线吸收电磁能量。 吸收器将吸收的能量转换成热量并且与壳体连通以传递热量。

公开(公告)号：US5990765A

公开(公告)日：1999-11-23

申请号：US974997

申请日：1997-11-20

Applicant: Raafat R. Mansour ,  Shen Ye

Inventor： Raafat R. Mansour ,  Shen Ye

IPC: H01P1/203

CPC classification number: H01P1/20381

Abstract: A planar dual mode filter has one or more resonators with L-shaped sections that are oriented back to back to one another. The filter can be constructed by adjusting the size of a gap between the back to back sections and adjusting the offset distance between adjacent sections. Further, coupling between adjacent resonators can be controlled by adjusting a distance between the adjacent resonators. The filters can be co-planar, stripline, suspended microstripline or microstripline. The filters have a film on a substrate with a ground plane. The film can be gold, silver or copper or it can be a ceramic material that becomes superconductive at cryogenic temperatures.

Abstract translation: 平面双模式滤波器具有一个或多个具有L形截面的谐振器，其彼此背靠背定向。 过滤器可以通过调整背靠背部分之间的间隙的尺寸并调整相邻部分之间的偏移距离来构造。 此外，可以通过调节相邻谐振器之间的距离来控制相邻谐振器之间的耦合。 过滤器可以是共面的，带状线，悬浮微带线或微带线。 滤光片在具有接地平面的基板上具有膜。 该膜可以是金，银或铜，或者它可以是在低温下变得超导的陶瓷材料。

公开(公告)号：US5841342A

公开(公告)日：1998-11-24

申请号：US542813

申请日：1995-10-13

Applicant: Frank A. Hegmann ,  Steven H. Moffat ,  John S. Preston ,  Darcy G. Poulin

Inventor： Frank A. Hegmann ,  Steven H. Moffat ,  John S. Preston ,  Darcy G. Poulin

IPC: H01P1/10 ,  H01P1/00

CPC classification number: H01P1/10

Abstract: A low insertion loss, wide bandwidth, microwave switch has a superconducting transmission line that can reversibly go from a superconducting state to a normal state by the application of a DC voltage. When in the normal state, the switch is "off" and microwave signals are attenuated. To reduce the voltage necessary to cause switching, the width of the transmission line is decreased. This decrease in voltage is accomplished in a controlled manner so that there are no spurious reflections produced on the line, resulting in a wide operating bandwidth. Previous microwave switches use other means to switch between superconducting and normal and suffer from disadvantages such as relatively slow switching time, complexity or narrow bandwidths as a result.

Abstract translation: 低插入损耗宽带宽微波开关具有通过施加直流电压可逆地从超导状态转变为正常状态的超导传输线。 当处于正常状态时，开关为“关”，微波信号衰减。 为了减少导致切换所需的电压，传输线的宽度减小。 这种电压降低以受控的方式实现，使得在线路上不产生寄生反射，导致宽的工作带宽。 以前的微波开关使用其他方法在超导和正常之间切换，并且具有诸如相对较慢的开关时间，复杂性或窄带宽的缺点。

公开(公告)号：US5345135A

公开(公告)日：1994-09-06

申请号：US10072

申请日：1993-01-26

Applicant: Robert C. Peach

Inventor： Robert C. Peach

IPC: H03H9/02 ,  H03H9/145 ,  H01L41/08

CPC classification number: H03H9/02992

Abstract: An interdigital transducer for use in a surface acoustic wave filter has two busbars of an irregular shape to reduce the effect of internally reflected surface waves. The busbars will usually have an identical shape to one another and have stepped outer and inner edges. The distance between a portion of the outer edge and a corresponding portion of the inner edge can be constant for a particular busbar or that distance can vary. With previous busbars, the outer and inner edges are linear and each busbar has a rectangular shape.

Abstract translation: 用于表面声波滤波器的叉指换能器具有两个不规则形状的母线，以减少内部反射的表面波的影响。 母线通常具有彼此相同的形状并且具有阶梯状的外部和内部边缘。 外边缘的一部分和内边缘的对应部分之间的距离对于特定母线可以是恒定的，或者该距离可以变化。 使用以前的母线，外边缘和内边缘是线性的，每条母线都是矩形的。

公开(公告)号：US4806887A

公开(公告)日：1989-02-21

申请号：US54524

申请日：1987-05-27

Applicant: Henry Y. M. Au-Yeung

Inventor： Henry Y. M. Au-Yeung

IPC: H01P1/12 ,  H01P1/10

CPC classification number: H01P1/122

Abstract: A waveguide R-switch has transformers in one or more of its three waveguide paths. The presence of the transformers allows the R-switch to be constructed of a smaller size than previous R-switch with curved outer paths. This results in important weight and volume savings.