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公开(公告)号:US20240421892A1
公开(公告)日:2024-12-19
申请号:US18364129
申请日:2023-08-02
Applicant: Honeywell International Inc.
Inventor: Narayan Singh RANA , Rajesh Chivukula , Nasana Narendra
Abstract: A method, apparatus, and computer program product are provided. In the contexts of a method, the method detects a radio signal using a single antenna configured to detect a plurality of radio signal types. The method determines a frequency of the radio signal. The method determines a radio signal type of the radio signal based at least on the frequency. The method determines a strength of the radio signal. The method transforms the radio signal based at least on the radio signal type or the strength of the radio signal.
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公开(公告)号:US20230314557A1
公开(公告)日:2023-10-05
申请号:US17813625
申请日:2022-07-20
Applicant: Honeywell International Inc.
Inventor: Rajesh Chivukula
CPC classification number: G01S7/025 , G01S7/038 , G01S13/003
Abstract: A frequency modulated continuous wave (FMCW) radar antenna that may provide isolation between the transmit (Tx) antenna and the receive (Rx) antenna based on the arrangement of the transmit elements and the receive elements. The transmit antenna elements for the antenna of this disclosure may be orthogonally fed, e.g., different by 90 degrees, compared to the receive antenna elements. For example, for horizontally polarized receive antenna elements, the transmit elements may be vertically polarized, or vice versa. The cross-polarized antenna elements may cause attenuation of surface waves between the Tx and Rx antennae. A low insertion loss 90-degree polarizer layer over one of the transmitter antenna, or the receiver antenna, to convert either the transmitted signals or the received reflections by 90-degrees so the reflected signal matches the polarization of the receiver antenna.
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公开(公告)号:US11476578B2
公开(公告)日:2022-10-18
申请号:US17091353
申请日:2020-11-06
Applicant: Honeywell International Inc.
Inventor: Rajesh Chivukula
Abstract: Disclosed is a dual band antenna with a first radiating element oriented at a first predetermined angle that operates in a first frequency band and a second radiating element oriented at a second predetermined angle that operates in a second frequency band. The dual band antenna has a ground plane that has a first slot that is associated with the first radiating element and a second slot that is associated with the second radiating element. The dual band antenna also has a first feed probe that is associated with the first radiating element and a second feed probe that is associated with the second radiating element.
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公开(公告)号:US10903581B2
公开(公告)日:2021-01-26
申请号:US16453902
申请日:2019-06-26
Applicant: Honeywell International Inc.
Inventor: Weihong Zhao , Nigel Wang , Rajesh Chivukula
Abstract: This disclosure is directed to techniques to improve the mechanical reliability and strength of slot array antennae created using printed circuit board (PCB) technology. In some examples, a multi-layer PCB may have a limit on the length and width dimensions. Therefore, a larger slot array antenna may require two or more PCBs to create the full size of the antenna. This disclosure describes techniques to securely connect the two or more PCBs to withstand environments where the slot array antenna may be placed under mechanical stress, such as vibration. A PCB based antenna may define the walls of radiating waveguides with vias between the layers of the PCB. Mechanical fasteners may pass through some of the existing vias to secure the PCB to a support structure, such as a feeding waveguide, as well as to secure one PCB to other PCBs.
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公开(公告)号:US12210115B2
公开(公告)日:2025-01-28
申请号:US17813625
申请日:2022-07-20
Applicant: Honeywell International Inc.
Inventor: Rajesh Chivukula
Abstract: A frequency modulated continuous wave (FMCW) radar antenna that may provide isolation between the transmit (Tx) antenna and the receive (Rx) antenna based on the arrangement of the transmit elements and the receive elements. The transmit antenna elements for the antenna of this disclosure may be orthogonally fed, e.g., different by 90 degrees, compared to the receive antenna elements. For example, for horizontally polarized receive antenna elements, the transmit elements may be vertically polarized, or vice versa. The cross-polarized antenna elements may cause attenuation of surface waves between the Tx and Rx antennae. A low insertion loss 90-degree polarizer layer over one of the transmitter antenna, or the receiver antenna, to convert either the transmitted signals or the received reflections by 90-degrees so the reflected signal matches the polarization of the receiver antenna.
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公开(公告)号:US20250030161A1
公开(公告)日:2025-01-23
申请号:US18637373
申请日:2024-04-16
Applicant: Honeywell International Inc.
Inventor: Bin Sai , Charan Ebsv , Rajesh Chivukula
IPC: H01Q3/40 , H01Q1/24 , H04B7/0413
Abstract: An antenna apparatus and a method of operating the antenna apparatus can include a group of receive antenna elements and a transmit antenna array comprising transmit antenna elements, wherein the transmit antenna array is located centrally in a phased array aperture that includes the transmit array antenna and the plurality of receive antenna elements. An isolation area can isolate the transmit antenna array from the receive antenna elements in the phased array aperture, and the phased array aperture can operate with a hybrid dual mode comprising a radar mode and an active beaming steering mode. The radar mode can be a multiple input multiple output (MIMO) radar mode, and the beamforming mode can be an antenna beamforming mode.
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