Patents by Inventor Thomas Emanuelsson
Thomas Emanuelsson 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).
-
Patent number: 11959954Abstract: A microstrip to waveguide transition comprising a waveguide module and a section of printed circuit board (PCB). The waveguide module comprises a waveguide aperture and a repetitive structure, the waveguide aperture being arranged extending through the module for attaching a waveguide to an external side of the module, the repetitive structure comprising a plurality of protruding elements arranged to surround the waveguide aperture on an internal side of the module and to define a passage into the waveguide aperture on the internal side, wherein the repetitive structure is configured to attenuate electromagnetic signal propagation in a frequency band past the repetitive structure while allowing propagation via the passage, the transition further comprising a PCB with a patch antenna connected to a transmission line and arranged to face the passage into the waveguide aperture.Type: GrantFiled: September 19, 2019Date of Patent: April 16, 2024Assignee: GAPWAVES ABInventors: Hanna Karlsson, Esperanza Alfonso Alós, Magnus Gustafsson, Thomas Emanuelsson
-
Patent number: 11936111Abstract: An antenna array with a layered structure having a base layer with a metamaterial structure, a printed circuit board (PCB) layers, a feed layer arranged on the opposite side of the PCB from the RF IC(s), and a radiating layer arranged on the feed layer. The radiating layer having a plurality of radiating elements. The metamaterial structure is arranged to attenuate electromagnetic radiation propagating between the at least two adjacent waveguides in the frequency band.Type: GrantFiled: February 4, 2020Date of Patent: March 19, 2024Assignee: GAPWAVES ABInventors: Thomas Emanuelsson, Yang Jian, Ashraf Uz Zaman, Wai Yan Yong
-
Publication number: 20220109246Abstract: An antenna array with a layered structure comprising a base layer with a metamaterial structure; a printed circuit board (PCB) layer; a feed layer arranged on the opposite side of the PCB from the RF IC(s); and a radiating layer arranged on the feed layer comprising a plurality of radiating elements, wherein the metamaterial structure is arranged to attenuate electromagnetic radiation propagating between the at least two adjacent waveguides in the frequency band.Type: ApplicationFiled: February 4, 2020Publication date: April 7, 2022Inventors: Thomas EMANUELSSON, Yang JIAN, Ashraf UZ ZAMAN, Wai YONG
-
Publication number: 20210376439Abstract: A microstrip to waveguide transition comprising a waveguide module and a section of printed circuit board (PCB). The waveguide module comprises a waveguide aperture and a repetitive structure, the waveguide aperture being arranged extending through the module for attaching a waveguide to an external side of the module, the repetitive structure comprising a plurality of protruding elements arranged to surround the waveguide aperture on an internal side of the module and to define a passage into the waveguide aperture on the internal side, wherein the repetitive structure is configured to attenuate electromagnetic signal propagation in a frequency band past the repetitive structure while allowing propagation via the passage, the transition further comprising a PCB with a patch antenna connected to a transmission line and arranged to face the passage into the waveguide aperture.Type: ApplicationFiled: September 19, 2019Publication date: December 2, 2021Inventors: Hanna KARLSSON, Esperanza ALFONSO ALÓS, Magnus GUSTAFSSON, Thomas EMANUELSSON
-
Publication number: 20210356504Abstract: A measurement device (100) for measuring antenna characteristics of an antenna under test (150, AUT), the AUT having a radiating element (160), the measurement device (100) comprising an exterior surface (110), where a measurement aperture (120) is formed in the exterior surface, and a repetitive structure (130) is arranged on the exterior surface, the repetitive structure (130) comprising a plurality of protruding conductive elements (135) arranged to surround the measurement aperture (120) and to define a passage (140) into the measurement aperture (120), the repetitive structure (130) being configured to attenuate electromagnetic signal propagation in a frequency band past the repetitive structure (130) while allowing propagation via the passage (140).Type: ApplicationFiled: September 19, 2018Publication date: November 18, 2021Inventors: Carlo BENCIVENNI, Thomas EMANUELSSON, Ashraf UZ ZAMAN, Arvid BJURKLINT
-
Patent number: 11121475Abstract: A phased array is disclosed, including: a base layer including a substrate with a plurality of protruding posts, for stopping wave propagation along the base layer, and a printed circuit board (PCB) arranged on the base layer, and including at least one phased array radio frequency (RF) integrated circuit (IC) on a first side of the PCB facing the base layer and the protruding posts. The PCB further includes feeds for transferring of RF signals from the phased array RF IC(s) to an opposite second side of the PCB. A radiating layer, including a plurality of radiating elements for transmitting and/or receiving RF signals from the phased array antenna is also provided, together with a feeding layer for transfer of RF signals, arranged between the feeds of the PCB on the second side and the radiating elements of the radiating layer.Type: GrantFiled: September 24, 2018Date of Patent: September 14, 2021Assignee: GAPWAVES ABInventors: Jian Yang, Thomas Emanuelsson, Ashraf Uz Zaman
-
Patent number: 10950920Abstract: It is provided a waveguide comprising a tubular, electrically conductive waveguide body, the waveguide having a rectangular cross-section. The waveguide further comprises an electrically conductive foil comprising at least one matching portion arranged within the waveguide body, extending along a propagation direction of the waveguide body, and at least one connection portion arranged outside of the waveguide body, for connecting the waveguide to a component, wherein the matching portion of the foil is tapered in a propagation direction of the waveguide and arranged to form a ridge protruding from a sidewall of the waveguide along part of the length of the waveguide, and wherein the connection portion extends outside of the waveguide, in a propagation direction of the waveguide and in the same plane as the matching portion. It is also provided a waveguide arrangement and a method for manufacturing such a waveguide arrangement.Type: GrantFiled: August 8, 2016Date of Patent: March 16, 2021Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Per Ligander, Thomas Emanuelsson, Ola Tageman
-
Publication number: 20200287291Abstract: A phased array is disclosed, including: a base layer including a substrate with a plurality of protruding posts, for stopping wave propagation along the base layer, and a printed circuit board (PCB) arranged on the base layer, and including at least one phased array radio frequency (RF) integrated circuit (IC) on a first side of the PCB facing the base layer and the protruding posts. The PCB further includes feeds for transferring of RF signals from the phased array RF IC(s) to an opposite second side of the PCB. A radiating layer, including a plurality of radiating elements for transmitting and/or receiving RF signals from the phased array antenna is also provided, together with a feeding layer for transfer of RF signals, arranged between the feeds of the PCB on the second side and the radiating elements of the radiating layer.Type: ApplicationFiled: September 24, 2018Publication date: September 10, 2020Applicant: Gapwaves ABInventors: Jian YANG, Thomas EMANUELSSON, Ashraf UZ ZAMAN
-
Patent number: 10547355Abstract: An antenna arrangement for LOS-MIMO communication, comprising first and second directive antenna units, a mounting bracket, and a connecting element attached to at least one of the directive antenna units and arranged to separate the directive antenna units by a distance. The connecting element is rotatably arranged in relation to the mounting bracket, wherein a rotation of the connecting element about the rotation axis changes an effective distance d between the first and the second directive antenna units.Type: GrantFiled: March 29, 2016Date of Patent: January 28, 2020Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Mats Rydström, Lei Bao, Thomas Emanuelsson, Per Ligander, Bengt-Erik Olsson
-
Publication number: 20190165443Abstract: It is provided a waveguide comprising a tubular, electrically conductive waveguide body, the waveguide having a rectangular cross-section. The waveguide further comprises an electrically conductive foil comprising at least one matching portion arranged within the waveguide body, extending along a propagation direction of the waveguide body, and at least one connection portion arranged outside of the waveguide body, for connecting the waveguide to a component, wherein the matching portion of the foil is tapered in a propagation direction of the waveguide and arranged to form a ridge protruding from a sidewall of the waveguide along part of the length of the waveguide, and wherein the connection portion extends outside of the waveguide, in a propagation direction of the waveguide and in the same plane as the matching portion. It is also provided a waveguide arrangement and a method for manufacturing such a waveguide arrangement.Type: ApplicationFiled: August 8, 2016Publication date: May 30, 2019Inventors: Per Ligander, Thomas Emanuelsson, Ola Tageman
-
Publication number: 20190115957Abstract: An antenna arrangement for LOS-MIMO communication, comprising first and second directive antenna units, a mounting bracket, and a connecting element attached to at least one of the directive antenna units and arranged to separate the directive antenna units by a distance. The connecting element is rotatably arranged in relation to the mounting bracket, wherein a rotation of the connecting element about the rotation axis changes an effective distance d between the first and the second directive antenna units.Type: ApplicationFiled: March 29, 2016Publication date: April 18, 2019Inventors: Mats RYDSTRÖM, Lei BAO, Thomas EMANUELSSON, Per LIGANDER, Bengt-Erik OLSSON
-
Patent number: 10263343Abstract: The present disclosure relates to a reflector antenna arrangement comprising at least a first reflective metal surface and a signal feeding arrangement transition that is adapted to receive a signal feeding arrangement that in turn is adapted to transmit and/or receive electromagnetic radiation via the first reflective metal surface. The reflector antenna arrangement further comprises a common dielectric body comprising at least one dielectric material, to which common dielectric body the first reflective metal surface is attached in a fixed relation to the signal feeding arrangement transition with a certain distance between them such that said transmitted and/or received electromagnetic radiation at least partly is arranged to propagate through at least a part of the common dielectric body.Type: GrantFiled: March 10, 2016Date of Patent: April 16, 2019Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Jonas Flodin, Thomas Emanuelsson
-
Publication number: 20180083366Abstract: The present disclosure relates to a reflector antenna arrangement comprising at least a first reflective metal surface and a signal feeding arrangement transition that is adapted to receive a signal feeding arrangement that in turn is adapted to transmit and/or receive electromagnetic radiation via the first reflective metal surface. The reflector antenna arrangement further comprises a common dielectric body comprising at least one dielectric material, to which common dielectric body the first reflective metal surface is attached in a fixed relation to the signal feeding arrangement transition with a certain distance between them such that said transmitted and/or received electromagnetic radiation at least partly is arranged to propagate through at least a part of the common dielectric body.Type: ApplicationFiled: March 10, 2016Publication date: March 22, 2018Inventors: Jonas Flodin, Thomas Emanuelsson
-
Patent number: 9473222Abstract: A verification device for a LOS MIMO/SIMO system which comprises a transmitter unit connected to a first and a second transmit antenna and a first receive antenna connected to a first down-converter which outputs a first down converted signal and a second receive antenna connected to a second down-converter which outputs a second down-converted signal. The first and the second receive antennas receive a first signal with reference symbols transmitted from one of said first and second transmit antennas, and the verification device obtains the phase difference between the first signal as received in the first and the second receive antennas respectively by comparing the first down-converted signal and the second down-converted signal with the reference symbols.Type: GrantFiled: March 4, 2013Date of Patent: October 18, 2016Assignee: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Mats Rydström, Thomas Emanuelsson
-
Patent number: 9350588Abstract: A receiver for an MCM signal with pilot symbols, comprising a first phase adjustment unit for adjusting the phase of an MCM signal by means of the pilot symbols and to output a first phase adjusted MCM signal to an MCM re-modulator unit which demodulates and then modulates the first phase-adjusted MCM signal to create an MCM reference signal. The communications receiver also comprises a second phase adjustment unit which receives the first phase adjusted MCM signal and also the MCM reference signal. The second phase adjustment unit adjusts the phase of the first phase adjusted MCM signal by means of said MCM reference signal and outputs a second phase adjusted MCM signal to an output MCM demodulator which demodulates the second phase adjusted MCM signal and outputs the demodulated MCM signal.Type: GrantFiled: December 14, 2012Date of Patent: May 24, 2016Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Thomas Eriksson, Thomas Emanuelsson, Mats Rydström
-
Publication number: 20160006489Abstract: A verification device for a LOS MIMO/SIMO system which comprises a transmitter unit connected to a first and a second transmit antenna and a first receive antenna connected to a first down-converter which outputs a first down converted signal and a second receive antenna connected to a second down-converter which outputs a second down-converted signal. The first and the second receive antennas receive a first signal with reference symbols transmitted from one of said first and second transmit antennas, and the verification device obtains the phase difference between the first signal as received in the first and the second receive antennas respectively by comparing the first down-converted signal and the second down-converted signal with the reference symbols.Type: ApplicationFiled: March 4, 2013Publication date: January 7, 2016Inventors: Mats RYDSTRÖM, Thomas EMANUELSSON
-
Publication number: 20150326420Abstract: A receiver for an MCM signal with pilot symbols, comprising a first phase adjustment unit for adjusting the phase of an MCM signal by means of the pilot symbols and to output a first phase adjusted MCM signal to an MCM re-modulator unit which demodulates and then modulates the first phase-adjusted MCM signal to create an MCM reference signal. The communications receiver also comprises a second phase adjustment unit which receives the first phase adjusted MCM signal and also the MCM reference signal. The second phase adjustment unit adjusts the phase of the first phase adjusted MCM signal by means of said MCM reference signal and outputs a second phase adjusted MCM signal to an output MCM demodulator which demodulates the second phase adjusted MCM signal and outputs the demodulated MCM signal.Type: ApplicationFiled: December 14, 2012Publication date: November 12, 2015Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Thomas ERIKSSON, Thomas EMANUELSSON, Mats RYDSTRÖM
-
Publication number: 20050146392Abstract: Microwave switch (MS) comprising an antenna branch (AB), a receive branch (RB), and a transmit branch (TB). According to one embodiment, the switch comprises a protection circuit (CPL, DTC, CTRL), which upon a high power signal (Dtc_h) being present on the antenna branch effectuates a biasing of semiconductors on both the receive branch (RB) and the transmit branch (TB). According to one embodiment PIN diodes are provided for controlling switching between the transmit and the receiv branch as well as enabling a protective mode, the control being accomplished by selectively biasing respective diodes.Type: ApplicationFiled: March 22, 2002Publication date: July 7, 2005Applicant: Telefonaktiebolaget LM Erricsson (publ)Inventors: Peter Karlsson, Thomas Emanuelsson
-
Patent number: 6750731Abstract: Circulator unit comprising a first member (1) in a first dielectric layer (3) and a second member (2) in second dielectric layer (4) both members being of ferro-electric material and arranged adjacent to one another, a conductive circulator pattern (10) printed on the first or second member and arranged between the first and the second member. The first substrate extends beyond the second substrate on an area where a first set of terminals is provided rendering the first set of terminals accessible. The second member extends beyond the first member on an area where a second set of terminals is provided rendering the second set of terminals accessible. The unit comprises first (7) and second ground (8) conductors arranged on each side of the first and second members and furthermore comprises at least one magnet (5, 6) or coil for providing magnetic field through the first and second member.Type: GrantFiled: March 11, 2002Date of Patent: June 15, 2004Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventor: Thomas Emanuelsson
-
Patent number: 6670674Abstract: The invention relates to an LDMOS transistor including a gate, source and drain, and an earth plane located under the gate, source and drain. According to the invention, the earth plane is given such an extent in the lateral direction of the transistor that an additional component of chip type can be mounted on it, whereby the LDMOS transistor and the additional component of chip type have a shared earth plane. The earth plane suitably comprises a silicon layer which is doped so that it has become conductive and can thereby constitute the earth plane for the transistor and the additional component of chip type.Type: GrantFiled: March 19, 2002Date of Patent: December 30, 2003Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventor: Thomas Emanuelsson