ACTIVE ANTENNA ESPECIALLY FOR THE SPACE-TECHNOLOGY FIELD

    公开(公告)号:US20250070477A1

    公开(公告)日:2025-02-27

    申请号:US18720339

    申请日:2022-12-14

    Abstract: An active antenna is disclosed including a passive portion of an antenna array extended at one end by a plate in which apertures are formed, at least one active assembly for transmitting radiofrequency RF waves, called assembly, through said apertures, each assembly including a first row of active modules facing apertures of the plate, a second row of active modules facing apertures of the plate and attached to the first row of active modules, a beam attached to the plate and held clamped between the first and second rows of active modules, a heat-transfer duct in contact with the first and second rows of active modules and jutting out on either side of said first and second rows of active modules.

    Mechanical Switching Unit, System And Satellite

    公开(公告)号:US20250051040A1

    公开(公告)日:2025-02-13

    申请号:US18797850

    申请日:2024-08-08

    Abstract: A mechanical switching unit for selectively moving a functional component from a first position to a second position has an input element, an output element, a first holding point and a second holding point. The input element is set in motion by a drive. The output element is in engagement with the input element and is set in motion by the input element. The input element moves the output element from the first position to the second position, and vice versa. In the process, the functional component is moved from the first position to the second position, and vice versa. The first holding point exerts a first holding force on the functional component in the first position. The second holding point exerts a second holding force on the functional component in the second position.

    Calibration Of Alignment Errors Of A Communication Unit By Means Of The Moon

    公开(公告)号:US20240106541A1

    公开(公告)日:2024-03-28

    申请号:US18367715

    申请日:2023-09-13

    Inventor: Daniel Dallmann

    CPC classification number: H04B10/40 H04B10/1129

    Abstract: A communication unit and a method for calibrating the alignment of a communication unit in a mobile carrier platform are described. The method incudes the following steps: determining an initial alignment of the communication unit with the moon on the basis of a position and bearing of the mobile carrier platform; moving the communication unit so that it adopts the initial alignment; tracing a search pattern with the communication unit starting from the initial alignment until a detection unit detects the moon; determining a real alignment of the communication unit when the detection unit detects the moon; determining a difference between the initial alignment and the real alignment of the communication unit; using this difference when performing a target alignment with the communication unit.

    Radio-Frequency Assembly With Impedance Matching Filter

    公开(公告)号:US20230010012A1

    公开(公告)日:2023-01-12

    申请号:US17858189

    申请日:2022-07-06

    Abstract: A radio-frequency assembly is described which can be used in communication satellites, for example. The radio-frequency assembly contains a signal source in the form of a semiconductor amplifier output, an impedance matching filter, and a radio-frequency waveguide. The impedance matching filter is connected to the semiconductor amplifier output on the input side and to the radio-frequency waveguide on the output side. The impedance matching filter has a different impedance value on the input side from that on the output side and is matched to the semiconductor amplifier output on the input side and matched to the radio-frequency waveguide on the output side. Consequently, a separate matching circuit between semiconductor amplifier output and radio-frequency waveguide is no longer necessary.

    Waveguide Arrangement Containing A Ridged Waveguide And A Waveguide, And Connecting Interface

    公开(公告)号:US20230009684A1

    公开(公告)日:2023-01-12

    申请号:US17858225

    申请日:2022-07-06

    Abstract: A waveguide arrangement contains a first ridged waveguide and a second waveguide. The first ridged waveguide contains a first casing with a first cavity and a first ridge extending in the first cavity in the longitudinal direction. The first ridge is conductively connected to a wall of the first casing. The second waveguide contains a second casing with a second cavity. The first ridged waveguide overlaps the second waveguide in the longitudinal direction of the waveguide arrangement in a connecting section to produce a capacitive coupling between the first ridge and the second waveguide.

    High-frequency module with connection interface

    公开(公告)号:US10992272B2

    公开(公告)日:2021-04-27

    申请号:US16555691

    申请日:2019-08-29

    Abstract: A high-frequency module can be used in communication satellites. The high-frequency module contains an electronic unit and a housing. The housing at least partially encloses the electronic unit, and the electronic unit is arranged at least partially in an interior space of the housing. An internal connector is arranged on the housing, which is coupled to the electronic unit such that electrical signals can be transmitted between the electronic unit and the internal connector. The internal connector is constructed integrally with at least a part of the housing. This allows a thermo-mechanical stress on the electronic unit to be reduced.

    Resonator with liquid crystal and compensating element

    公开(公告)号:US10790570B2

    公开(公告)日:2020-09-29

    申请号:US16164544

    申请日:2018-10-18

    Inventor: Tobias Kaesser

    Abstract: A resonator for a filter is described. The resonator includes a resonator housing, in which a resonator space is formed, a container with a cavity, in which a liquid crystal is contained, the container being at least partially arranged in the resonator space, and a compensating element, which is arranged in the cavity. The compensating element has a coefficient of thermal expansion that is lower than a coefficient of thermal expansion of the liquid crystal.

    Controller arrangement with adaptive adjusting of the regulating variable

    公开(公告)号:US10759548B2

    公开(公告)日:2020-09-01

    申请号:US16106248

    申请日:2018-08-21

    Abstract: A controller arrangement includes a controller, an actuator, and a measuring element. The measuring element captures a control variable with a predetermined sampling rate in consecutive sampling cycles and transmits it to the controller. The controller compares the control variable with a predetermined reference variable and determines how the control variable differs from the reference variable. The controller, in a first cycle, starts with a predetermined regulating variable and outputs it to the actuator, and subsequently determines how the control variable differs from the reference variable; in a second cycle, the controller varies the regulating variable based on the difference of the control variable from the reference variable in the first cycle, and outputs it to the actuator, and subsequently determines how the control variable differs from the reference variable; in a third cycle, the controller varies the regulating variable and outputs it to the actuator.

    Beam orientation in unidirectional optical communication systems

    公开(公告)号:US10606146B2

    公开(公告)日:2020-03-31

    申请号:US16163762

    申请日:2018-10-18

    Inventor: Frank Heine

    Abstract: A method for adjusting a radiation direction of an optical communication signal between a communication platform and a remote station includes: starting from an initial position of a beam deflection unit of the platform for steering the optical communication signal, adopting deflection positions of the beam deflection unit along two different lines of movement and in opposite directions along the lines of movement, the deflection positions being consistent with deflection angles having the same absolute value, each deflection position being held for a different period; measuring an intensity of the signal at the station; when an intensity change in the signal is discovered at the station, ascertaining a signal quality change in the signal and recording the duration of this intensity change; determining that intensity change that pertains to the best signal quality change, and the associated duration; changing the intensity of a guidance beam for the duration previously determined.

    Controller Arrangement With Adaptive Adjusting Of The Regulating Variable

    公开(公告)号:US20190071192A1

    公开(公告)日:2019-03-07

    申请号:US16106248

    申请日:2018-08-21

    Abstract: A controller arrangement includes a controller, an actuator, and a measuring element. The measuring element captures a control variable with a predetermined sampling rate in consecutive sampling cycles and transmits it to the controller. The controller compares the control variable with a predetermined reference variable and determines how the control variable differs from the reference variable. The controller, in a first cycle, starts with a predetermined regulating variable and outputs it to the actuator, and subsequently determines how the control variable differs from the reference variable; in a second cycle, the controller varies the regulating variable based on the difference of the control variable from the reference variable in the first cycle, and outputs it to the actuator, and subsequently determines how the control variable differs from the reference variable; in a third cycle, the controller varies the regulating variable and outputs it to the actuator.

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