公开(公告)号：US11735823B2

公开(公告)日：2023-08-22

申请号：US17575069

申请日：2022-01-13

Applicant: GM Global Technology Operations LLC

Inventor： Duane S. Carper ,  Hyok Jae Song ,  James H. Schaffner ,  Patrick Edward Leavy

IPC: H01Q13/08 ,  H01Q9/04 ,  H01Q21/00

CPC classification number: H01Q9/045 ,  H01Q13/085 ,  H01Q21/0062

Abstract: An antenna is disclosed. The antenna can include a coplanar antenna structure. The coplanar antenna structure can include a substrate and a radiating portion that is configured to emit electromagnetic radiation and is disposed over the substrate. The radiating portion defines a slot having a width to length ratio of at least approximately 0.4. The antenna also includes a scattering element disposed over the substrate and at least partially surrounds the radiating portion.

公开(公告)号：US11444367B2

公开(公告)日：2022-09-13

申请号：US16990001

申请日：2020-08-11

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Timothy Brockett ,  Hyok Jae Song ,  James H. Schaffner ,  Duane S. Carper ,  Raymond G. Acker

IPC: H01Q1/24 ,  H01Q1/12 ,  H01Q9/04 ,  H01Q5/50 ,  H01Q1/38

Abstract: An antenna assembly configured to be mounted on a glass structure. The antenna assembly comprises a multilayer structure comprising i) a superstrate layer comprising a thin dielectric material; ii) an antenna layer on which the superstrate layer is disposed, the antenna layer comprising an electrically conducting material; and ii) a first substrate layer on which the antenna layer is disposed. The antenna assembly further comprises a housing in which the multilayer structure is disposed. The housing is adapted for attachment to a surface of the glass structure. A dielectric characteristic of the superstrate layer compensates for a dielectric characteristic of the glass structure in order to reduce the variability of the operating frequency of the antenna assembly.

公开(公告)号：US11002832B2

公开(公告)日：2021-05-11

申请号：US16018831

申请日：2018-06-26

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Keyvan Sayyah ,  Oleg Efimov ,  Pamela R. Patterson ,  Raymond Sarkissian ,  James H. Schaffner ,  Biqin Huang ,  David Hammon

IPC: G01S7/48 ,  G01S7/481 ,  G01S7/4911 ,  G01S17/58 ,  G01S17/42 ,  G01S17/34 ,  G01S17/86 ,  G01S17/931 ,  G01S7/499 ,  G01S17/02 ,  G02B6/122 ,  G02B6/27 ,  G02B6/42 ,  H01L23/544 ,  H01L31/0232 ,  H01L31/16 ,  G01S17/00 ,  G01S17/32 ,  G01S7/4914 ,  G01S7/491 ,  G01S7/497 ,  B81B7/02 ,  G02B27/30 ,  H01S5/125 ,  G01S7/4913 ,  G02B6/00

Abstract: A LIDAR system, LIDAR chip and method of manufacturing a LIDAR chip. The LIDAR system includes a photonic chip configured to transmit a transmitted light beam and to receive a reflected light beam, a scanner for directing the transmitted light beam towards a direction in space and receiving the reflected light beam from the selected direction, and a fiber-based optical coupler. The photonic chip and the scanner are placed on a semiconductor integrated platform (SIP). The fiber-based optical coupler is placed on top of the photonic chip to optically couple to the photonic chip for directing the a transmitted light beam from the photonic chip to the scanner and for directing a reflected light beam from the scanner to the photonic chip.

公开(公告)号：US10914821B2

公开(公告)日：2021-02-09

申请号：US16017278

申请日：2018-06-25

Applicant: GM Global Technology Operations LLC

Inventor： Pamela R. Patterson ,  Keyvan Sayyah ,  Oleg Efimov ,  Raymond Sarkissian ,  James H. Schaffner ,  Biqin Huang ,  David Hammon

IPC: G01S7/00 ,  G01S7/481 ,  G01S7/4911 ,  G01S17/58 ,  G01S17/42 ,  G01S17/34 ,  G01S17/86 ,  G01S17/931 ,  G01S7/499 ,  G01S17/02 ,  G02B6/122 ,  G02B6/27 ,  G02B6/42 ,  H01L23/544 ,  H01L31/0232 ,  H01L31/16 ,  G01S17/00 ,  G01S17/32 ,  G01S7/4914 ,  G01S7/491 ,  G01S7/497 ,  B81B7/02 ,  G02B27/30 ,  H01S5/125 ,  G01S7/4913 ,  G02B6/00

Abstract: A lidar system includes a light source to generate a frequency modulated continuous wave (FMCW) signal, and a waveguide splitter to split the FMCW signal into an output signal and a local oscillator (LO) signal. A transmit coupler provides the output signal for transmission. A receive lens obtains a received signal resulting from reflection of the output signal by a target. A waveguide coupler combines the received signal and the LO signal into a first combined signal and a second combined signal. A first phase modulator and second phase modulator respectively adjust a phase of the first combined signal and the second combined signal to provide a first phase modulated signal and a second phase modulated signal to a first photodetector and a second photodetector. A processor processes a first electrical signal and a second electrical signal from the first and second photodetectors to obtain information about the target.

公开(公告)号：US10764993B2

公开(公告)日：2020-09-01

申请号：US15661085

申请日：2017-07-27

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Walter S. Wall ,  James H. Schaffner ,  Hyok Jae Song ,  David S. Hammon ,  Timothy J. Talty ,  Duane S. Carper ,  Eray Yasan

IPC: H05K1/02 ,  H05K3/30 ,  H03H7/01 ,  H01Q1/42 ,  H01Q1/32 ,  H01Q15/00 ,  H05K3/00 ,  H05K1/18 ,  H05K3/06 ,  H05K3/28

Abstract: The present application electromagnetic signal filtering. More specifically, the application teaches a system and method for affixing a frequency selective surface to an existing antenna radome, such that unwanted signals are attenuated before reaching an antenna structure within the antenna radome.

公开(公告)号：US20200088845A1

公开(公告)日：2020-03-19

申请号：US16555367

申请日：2019-08-29

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Timothy J. Talty ,  Oleg Efimov ,  Michael Mulqueen ,  Keyvan Sayyah ,  Pamela R. Patterson ,  Raymond Sarkissian ,  James H. Schaffner ,  David Hammon ,  Biqin Huang

IPC: G01S7/481 ,  G01S7/491 ,  G01S17/32

Abstract: A Lidar system, photonic chip and method of detecting an object is disclosed. The Lidar system includes the photonic chip. The photonic chip includes a laser and a local oscillator waveguide. The laser is integrated into the photonic chip and generates a leakage energy at a back facet of the laser for use as a local oscillator beam for the photonic chip. The local oscillator waveguide receives the leakage energy as the local oscillator beam. The laser further generates a transmitted light beam through a front facet of the photonic chip, combining the leakage energy with a reflection of the transmitted light beam form an object, and detects a combination of the reflected light beam and the leakage energy to determine a parameter of the object.

公开(公告)号：US10381704B2

公开(公告)日：2019-08-13

申请号：US15431091

申请日：2017-02-13

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Timothy J. Talty ,  Walter S. Wall ,  James H. Schaffner ,  Hyok Jae Song ,  Duane S. Carper ,  Eray Yasan

IPC: H01P5/02 ,  H01P3/00 ,  H01Q1/12 ,  H01Q1/32 ,  H01Q1/24 ,  B60J1/18 ,  B60J1/00 ,  B60J1/02

Abstract: An electromagnetic coupler that couples antenna signals for a wideband antenna positioned between glass layers of an automotive windshield. The coupler includes a first co-planar waveguide (CPW) formed on one side of a glass layer and a second CPW formed on the other side of the glass layer, where the first and second CPWs are a mirror, or near-mirror, and 180° rotated images of each other. Both the first and second CPWs include a conductive plane where removed portions of the plane define a wide CPW section and a narrow CPW section that are electrically coupled to each other, and where the remaining portions of the conductive plane are ground planes, and where the electromagnetic signals are coupled through the glass layer between the wide CPW sections.

公开(公告)号：US20190148821A1

公开(公告)日：2019-05-16

申请号：US15811867

申请日：2017-11-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Timothy J. Talty ,  Hyok Jae SOng ,  James H. Schaffner ,  Duane S. Carper ,  Eray Yasan

IPC: H01Q1/32 ,  H01Q1/36 ,  H01Q19/10 ,  H01Q1/48

Abstract: The present application generally relates to antennas embedded in or on glass structures. More specifically, the application teaches a method and apparatus for camouflaging near-transparent conductors by adding additional conductive or non-conductive materials of non-conductive areas by applying the additional materials in the same plane or a different plane than the antenna.

公开(公告)号：US20170324140A1

公开(公告)日：2017-11-09

申请号：US15583236

申请日：2017-05-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Timothy J. Talty ,  Keerti S. Kona ,  Amit M. Patel ,  Hyok Jae Song ,  James H. Schaffner ,  Duane S. Carper ,  Eray Yasan

IPC: H01Q1/12 ,  H01Q9/04 ,  H01Q13/28

CPC classification number: H01Q1/1271 ,  H01Q1/3291 ,  H01Q5/371 ,  H01Q9/0421 ,  H01Q9/0428 ,  H01Q9/045 ,  H01Q13/28

Abstract: A thin film, flexible antenna that has particular application to be adhered to vehicle glass, where the antenna is operable to receive right-hand or left-hand circularly polarized signals from, for example, GPS and SDARS satellites. The antenna is a printed planar antenna formed to the substrate and includes a ground plane having an outer perimeter portion defining a slot therein and having a plurality of sides. A T-line tuning stub extends from one of the sides into the slot, a curved spur-line tuning stub extends from a corner where two sides of the perimeter portion meet and extends into the slot, and a radiating element electrically isolated from the perimeter portion extends into the slot. The perimeter portion is operable to generate circularly polarized signals to be received by the radiating element where the tuning stubs provide phase tuning of the circularly polarized signals.

公开(公告)号：US11067670B2

公开(公告)日：2021-07-20

申请号：US16020202

申请日：2018-06-27

Applicant: GM Global Technology Operations LLC

Inventor： Pamela R. Patterson ,  Biqin Huang ,  James H. Schaffner ,  Keyvan Sayyah ,  Oleg Efimov ,  Raymond Sarkissian

IPC: G01S7/481 ,  G01S17/93 ,  G01S7/491 ,  G01S7/4911 ,  G01S17/58 ,  G01S17/42 ,  G01S17/34 ,  G01S17/86 ,  G01S17/931 ,  G01S7/499 ,  G01S17/02 ,  G02B6/122 ,  G02B6/27 ,  G02B6/42 ,  H01L23/544 ,  H01L31/0232 ,  H01L31/16 ,  G01S17/00 ,  G01S17/32 ,  G01S7/4914 ,  G01S7/497 ,  B81B7/02 ,  G02B27/30 ,  H01S5/125 ,  G01S7/4913 ,  G02B6/00

Abstract: A lidar system includes a photonic chip including a light source and a transmit beam coupler to provide an output signal for transmission. The output signal is a frequency modulated continuous wave (FMCW) signal. A transmit beam steering device transmits the output signal from the transmit beam coupler of the photonic chip. A receive beam steering device obtains a reflection of the output signal by a target and provides the reflection as a received signal to a receive beam coupler of the photonic chip. The photonic chip, the transmit beam steering device, and the receive beam steering device are heterogeneously integrated into an optical engine.