Patents by Inventor Thomas Merk
Thomas Merk has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230403035Abstract: The disclosure relates to a four-port diplexer device which includes a first port configured to pass signals within a first frequency band and to block signals within a second frequency band; a second port configured to pass signals within the second frequency band and to block signals within the first frequency band; a third port configured to transmit a first signal portion of a combination of the signals received from the first port and the signals received from the second port; and a fourth port configured to transmit a second signal portion of the combination of the signals received from the first port and the signals received from the second port.Type: ApplicationFiled: August 9, 2023Publication date: December 14, 2023Applicant: LISA DRÄXLMAIER GMBHInventors: Thomas MERK, Ievgen BILOGUROV
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Publication number: 20230268657Abstract: A horn antenna element includes a septum polarizer configured to transform a linear polarized input signal into a circular polarized output signal at a common port, and a horn radiator. The horn radiator includes an input geometry formed as a quad-ridge waveguide to receive the circular polarized output signal at the common port and an aperture grid to radiate a grid-based circular polarized output signal. The septum polarizer is embedded in the quad-ridge waveguide at the common port.Type: ApplicationFiled: April 11, 2023Publication date: August 24, 2023Applicant: LISA DRÄXLMAIER GMBHInventors: Thomas MERK, Ievgen BILOGUROV
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Patent number: 10050340Abstract: Embodiments of the present disclosure provide a cover for an antenna for electromagnetic radiation of a specific wavelength. The antenna includes an array of radiating elements, such as a plurality of horn antennas. The cover comprises a layer of cellular embossments, an upper side, and a lower side. The distance between the upper side and the lower side is approximately ¼ of the wavelength. The upper side of the layer comprises the area within an upper side of the embossments, the lower side of the layer comprises the area surrounding the embossments, and the lower side of the layer is arranged in a spaced relationship from the antenna in a radiating direction of the antenna. The antenna is mounted on a portable satellite terminal operating in the X band.Type: GrantFiled: January 27, 2017Date of Patent: August 14, 2018Assignee: Lisa Draexlmaier GmbHInventor: Thomas Merk
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Patent number: 10044083Abstract: Embodiments relate to a device for correcting the polarization twist of two linearly polarized signals using two polarization converters connected in series, wherein the second polarization converter can be rotated about an axis. In this way, the skew angle of an antenna can be compensated with respect to a satellite using a rotatable waveguide circuit. By converting the polarization from linear to circular, it is easier to rotate the now circularly polarized signals, using a second polarization converter, which reestablishes a linear polarization for the circularly polarized signals. Given the dual-channel signal outcoupling, the PCU may allow two orthogonal linear polarizations to be corrected at the same time using a simpler mechanical composition.Type: GrantFiled: May 20, 2016Date of Patent: August 7, 2018Assignee: Lisa Draexlmaier GmbHInventors: Christoph Haeussler, Thomas Merk
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Patent number: 9859618Abstract: A radiating element may comprise an antenna element, a radiating element edge, and a corrugation. The antenna element may have an aperture that extends into the antenna element, and an aperture side defining an aperture area of the antenna element. The radiating element edge may surround the antenna element on the aperture side. The corrugation may be configured to separate, at least on the aperture side, the antenna element and the surrounding radiating element edge. The radiating element edge may be connected to the antenna element at a distance greater than zero from the aperture side of the antenna element.Type: GrantFiled: September 4, 2015Date of Patent: January 2, 2018Assignee: Lisa Draeximaier GmbHInventor: Thomas Merk
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Patent number: 9761955Abstract: A feed network for an antenna system having a waveguide is disclosed. The waveguide has broad sides facing each other and narrow sides facing each other. The feed network includes a first microstrip conductor including a first conductor loop and a second microstrip conductor including a second conductor loop. The first and second conductor loops each extend into the waveguide from one of the narrow sides and are each electrically coupled to one of the broad sides.Type: GrantFiled: August 28, 2015Date of Patent: September 12, 2017Assignee: Lisa Draexlmaier GmbHInventor: Thomas Merk
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Publication number: 20170222310Abstract: Embodiments of the present disclosure provide a cover for an antenna for electromagnetic radiation of a specific wavelength. The antenna includes an array of radiating elements, such as a plurality of horn antennas. The cover comprises a layer of cellular embossments, an upper side, and a lower side. The distance between the upper side and the lower side is approximately ¼ of the wavelength. The upper side of the layer comprises the area within an upper side of the embossments, the lower side of the layer comprises the area surrounding the embossments, and the lower side of the layer is arranged in a spaced relationship from the antenna in a radiating direction of the antenna. The antenna is mounted on a portable satellite terminal operating in the X band.Type: ApplicationFiled: January 27, 2017Publication date: August 3, 2017Inventor: Thomas Merk
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Publication number: 20160344083Abstract: The invention relates to a device for correcting the polarization twist of two linearly polarized signals by way of two polarization converters connected in series, wherein the second polarization converter can be rotated about the axis thereof. In this way, the skew angle of an antenna can be compensated with respect to a satellite by way of a rotatable waveguide circuit. By converting the polarization from linear to circular, it is easier to rotate the now circularly polarized signals, which is carried out in a second polarization converter, which again establishes a linear polarization for the circularly polarized signals. Given the dual-channel signal outcoupling, the PCU introduced here allows two orthogonal linear polarizations to be corrected at the same time using a relatively simple mechanical composition.Type: ApplicationFiled: May 20, 2016Publication date: November 24, 2016Inventors: Christoph HAEUSSLER, Thomas MERK
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Publication number: 20160072190Abstract: A radiating element may comprise an antenna element, a radiating element edge, and a corrugation. The antenna element may have an aperture that extends into the antenna element, and an aperture side defining an aperture area of the antenna element. The radiating element edge may surround the antenna element on the aperture side. The corrugation may be configured to separate, at least on the aperture side, the antenna element and the surrounding radiating element edge. The radiating element edge may be connected to the antenna element at a distance greater than zero from the aperture side of the antenna element.Type: ApplicationFiled: September 4, 2015Publication date: March 10, 2016Inventor: Thomas MERK
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Publication number: 20160064796Abstract: A feed network for an antenna system having a waveguide is disclosed. The waveguide has broad sides facing each other and narrow sides facing each other. The feed network includes a first microstrip conductor including a first conductor loop and a second microstrip conductor including a second conductor loop. The first and second conductor loops each extend into the waveguide from one of the narrow sides and are each electrically coupled to one of the broad sides.Type: ApplicationFiled: August 28, 2015Publication date: March 3, 2016Inventor: Thomas MERK
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Patent number: 7942059Abstract: A sensor arrangement for detecting objects, includes an ultrasonic sensor and an optical sensor integrated into the ultrasonic sensor.Type: GrantFiled: September 29, 2008Date of Patent: May 17, 2011Assignee: Leuze electronic GmbH + Co. KGInventors: Juergen Patz, Thomas Merk
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Publication number: 20090084186Abstract: A sensor arrangement for detecting objects, includes an ultrasonic sensor and an optical sensor integrated into the ultrasonic sensor.Type: ApplicationFiled: September 29, 2008Publication date: April 2, 2009Applicant: Leuze electronic GmbH + Co. KGInventors: Juergen Patz, Thomas Merk
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Patent number: 7417498Abstract: An amplifier, in particular for RF-applications, comprises a circuit board (2), at least one amplifier stage with at least one transistor package (8) arranged on the circuit board (2), and a feedback path (12) around the at least one transistor package (8), said feedback path (12) comprising a feedback element (15) with at least one capactive (C) element for blocking the flow of direct current through the feedback path (12) and preferably further comprising at least one inductive (L) and/or resistive element (R). In order to reduce negative effects on the performance of the amplifier due to long printed feedback lines, the feedback path (12) in an amplifier according to the invention is formed of a feedback bridge (9) comprising two feedback lines (13, 14) extending out of the plane of the circuit board (2) from two contact flags (10, 11) of the transistor package (8), and the feedback element (15) bridging over the transistor package (8) between the two feedback lines (13, 14).Type: GrantFiled: June 14, 2006Date of Patent: August 26, 2008Assignee: AlcatelInventors: Dirk Wiegner, Thomas Merk
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Patent number: 7388428Abstract: The present invention relates to a power amplifier for amplifying an electronic input signal (51) and a multi-band capable frontend with such power amplifier. The power amplifier comprises an amplifier transistor stage (1) having an input (52) and an output (53) and a feedback loop (4) placed between the output (53) and the input (52) of the amplifier transistor stage (1). The feedback loop (4) comprises a capacitor (41) and a resistive element (44) in a RF path and an inductive element (42) in a DC feed path, wherein said resistive element comprises a feedback transistor (45) arranged as variable resistor within the feedback loop, and a bias control circuit (46).Type: GrantFiled: November 30, 2005Date of Patent: June 17, 2008Assignee: ALCATELInventors: Dirk Wiegner, Thomas Merk
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Publication number: 20070013442Abstract: An amplifier, in particular for RF-applications, comprises a circuit board (2), at least one amplifier stage with at least one transistor package (8) arranged on the circuit board (2), and a feedback path (12) around the at least one transistor package (8), said feedback path (12) comprising a feedback element (15) with at least one capactive (C) element for blocking the flow of direct current through the feedback path (12) and preferably further comprising at least one inductive (L) and/or resistive element (R). In order to reduce negative effects on the performance of the amplifier due to long printed feedback lines, the feedback path (12) in an amplifier according to the invention is formed of a feedback bridge (9) comprising two feedback lines (13, 14) extending out of the plane of the circuit board (2) from two contact flags (10, 11) of the transistor package (8), and the feedback element (15) bridging over the transistor package (8) between the two feedback lines (13, 14).Type: ApplicationFiled: June 14, 2006Publication date: January 18, 2007Inventors: Dirk Wiegner, Thomas Merk
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Publication number: 20060114059Abstract: The present invention relates to a power amplifier for amplifying an electronic input signal (51) and a multi-band capable frontend with such power amplifier. The power amplifier comprises an amplifier transistor stage (1) having an input (52) and an output (53) and a feedback loop (4) placed between the output (53) and the input (52) of the amplifier transistor stage (1). The feedback loop (4) comprises a capacitor (41) and a resistive element (44) in a RF path and an inductive element (42) in a DC feed path, wherein said resistive element comprises a feedback transistor (45) arranged as variable resistor within the feedback loop, and a bias control circuit (46).Type: ApplicationFiled: November 30, 2005Publication date: June 1, 2006Inventors: Dirk Wiegner, Thomas Merk