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公开(公告)号：US12113583B2
公开(公告)日：2024-10-08
申请号：US17143850
申请日：2021-01-07
申请人： FormFactor, Inc.
发明人： Dennis Rosenauer , Roger Hayward , Roy Swart
CPC分类号： H04B17/12 , H04B17/16 , H04B17/19 , H04B7/0617
摘要： Improved electrical testing of N-port beamforming devices is provided. For testing, an N:1 electrical network is connected to the N ports of the device under test to provide a single test port. This mode of testing can be used to determine parameters of interest (e.g., far field radiation patterns etc.) of the device under test more rapidly than with antenna range testing or with characterization of each port of the device under test. The N:1 electrical network can be passive or active. The N:1 electrical network can be integrated in a probe head to provide probe array testing of beamforming devices. Alternatively, the N:1 electrical network can be integrated with the device under test to provide onboard testing capability.
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公开(公告)号：US12034493B2
公开(公告)日：2024-07-09
申请号：US17490644
申请日：2021-09-30
申请人： Arizona Board of Regents on behalf of Arizona State University , Texas Instruments Incorporated
发明人： Muslum Emir Avci , Chethan Kumar Y. B. , Sule Ozev
CPC分类号： H04B17/19 , H04B17/0085 , H04B17/104 , H04B17/13 , H04B17/14
摘要： Mismatch detection using periodic structures is provided. Embodiments described herein can measure and detect mismatch between two loads in a radio frequency (RF) system without the need for external calibration by referencing their measurements into a small set of parameters that are intrinsic to the RF system design. This approach can be used to compare impedances of two loads and measure their impedances relative to each other without requiring any external calibration (e.g., the approach does not assume any prior known physical quantities in the system, such as a reference impedance). This approach can be used to compare the two loads to each other, as well as to quantify the amount of mismatch between these loads by calculating reflection coefficient between the loads. Loads can be passive devices, such as antennas, or they can be active devices, such as amplifiers.
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3.发明公开公开(公告)号：US20240072911A1
公开(公告)日：2024-02-29
申请号：US18267737
申请日：2020-12-22
发明人： Vijay Venkateswaran , Bo Göransson , Joao Vieira
CPC分类号： H04B17/19 , H01Q3/267 , H04B17/12 , H04B17/221
摘要： There is provided mechanisms for calibrating transmit antenna chains and receive antenna chains of an antenna system. A method is performed by a network node. The method comprises obtaining a set of observations from bi-directional sounding of pairs of antennas of the antenna system. Each of the antennas has one transmit antenna chain and one receive antenna chain. The observations are represented by a composite product of transmit calibration weights, receive calibration weights, and signal leakage terms. The method comprises estimating the transmit calibration weights and the receive calibration weights from a decomposition of the composite product. The method comprises calibrating the transmit antenna chains and the receive antenna chains by applying as calibration factors the estimated transmit calibration weights to the transmit antenna chains and the receive calibration weights to the receive antenna chains.
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公开(公告)号：US20240063928A1
公开(公告)日：2024-02-22
申请号：US17821153
申请日：2022-08-19
发明人： Udayan BHAWNANI , Francesco GRILLI , Junsheng HAN , Carl HARDIN , Jonathan KIES , Victor KULIK , Vanitha Aravamudhan KUMAR , Nirupama LOCANINDI , Vinay PARADKAR , Manmeet SINGH
IPC分类号： H04B17/318 , H04B17/12 , H04B17/19
CPC分类号： H04B17/318 , H04B17/12 , H04B17/19
摘要： In some implementations, a mobile device may perform a plurality of signal strength measurements of a radio frequency (RF) signal transmitted by a satellite, wherein performing the plurality of signal strength measurements occurs over a period of time during which the mobile device is subject to a movement. The mobile device may determine, for each signal strength measurement of the plurality of signal strength measurements, a respective orientation of the mobile device corresponding to when the respective signal strength measurement was performed. The mobile device may determine a target orientation for the satellite-based communications based at least in part on a value of a particular signal strength measurement of the plurality of signal strength measurements and the respective orientation of the mobile device corresponding to the particular signal strength measurement. The mobile device may provide guidance for rotating the mobile device to the target orientation.
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公开(公告)号：US20240007202A1
公开(公告)日：2024-01-04
申请号：US18369601
申请日：2023-09-18
发明人： Namjun CHO , Sanghun SIM
摘要： A millimeter wave module inspection system includes: an electronic device including at least one processor; and a millimeter wave module including a memory, at least one antenna, and at least one transceiver, wherein the at least one processor is configured to: control an input signal to be input to a transmission signal input terminal of the millimeter wave module; identify an output signal that is output from a reception signal output terminal of the millimeter wave module when the input signal passes through the at least one antenna of the millimeter wave module; identify first data corresponding to a transmission chain gain related to a transmission path of the millimeter wave module stored in the memory and second data corresponding to a reception chain gain related to a reception path of the millimeter wave module, the first data and the second data being stored in the memory; and determine whether the millimeter wave module is abnormal based at least on the identified output signal, the first data, and the second data.
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公开(公告)号：US20230308120A1
公开(公告)日：2023-09-28
申请号：US18126413
申请日：2023-03-25
发明人： Matthew Hamilton , Tom Furey
CPC分类号： H04B1/006 , H04B17/19 , H04B17/297
摘要： An electronic device is described. This electronic device may include a communication circuit (such as an integrated circuit) that combines an interrogator and a transponder. Notably, the communication circuit may dynamically and temporally interleave an interrogator or the transponder transmission with a transponder response to a second interrogator or the second transponder transmission associated with a second electronic device. Moreover, the electronic device may include or may be selectively electrically coupled to at least an omnidirectional antenna that is used for bidirectional communication, such as: transmitting the interrogator or the transponder transmission (or message), receiving the second interrogator or the second transponder transmission (or message), and/or transmitting the transponder response to the second interrogator or the second transponder transmission.
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公开(公告)号：US20230269008A1
公开(公告)日：2023-08-24
申请号：US18167893
申请日：2023-02-13
申请人： TMY Technology Inc.
发明人： Su-Wei Chang
CPC分类号： H04B17/19 , G01R29/0814
摘要： A radio frequency circuit includes a base plate, an element under test, a transmission line, a sensing line, and a controller. The base plate has a first surface. The element under test is disposed on the base plate and includes an output port to output an RF signal. The transmission line is disposed on the first surface of the base plate and electrically connected to the output port of the element under test. The sensing line is substantially parallel to the transmission line within a sensing area of the base plate. The sensing line is separated from the transmission line by a first length and adapted for inducing the RF signal on the transmission line to generate an induction signal. The controller is disposed on the base plate, electrically connected to the sensing line, and configured to determine the state of the element under test according to the induction signal.
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公开(公告)号：US20230254052A1
公开(公告)日：2023-08-10
申请号：US18300565
申请日：2023-04-14
CPC分类号： H04B17/102 , H04B17/16 , H04B17/19
摘要： A method for evaluating a behaviour of a device comprises obtaining a first dataset representing a first set of values of at least two parameters relating to a first antenna pattern; and obtaining a second dataset representing a second set of values of the at least two parameters relating to a second antenna pattern being formed by the device. The method comprises relating the first dataset and the second dataset using a metric to obtain a relationship. Further, the method comprises evaluating at least a behaviour of the device using the relationship.
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9.发明公开公开(公告)号：US20230171007A1
公开(公告)日：2023-06-01
申请号：US18096657
申请日：2023-01-13
发明人： Hyungmin JIN , Younghoon SON , Hyunyoon CHO , Youngdon CHOI , Junghwan CHOI
CPC分类号： H04B17/19 , H04B17/18 , H04B17/0085 , H04L7/0016
摘要： A translation device, a test system, and a memory system are provided. The translation device includes plural first input/output (I/O) circuits that respectively transmit and receive first signals through plural pins based on a pulse amplitude modulation (PAM)-M mode, a second I/O circuit that transmits and receives a second signal through one or more pins based on a PAM-N mode, and a translation circuit that translates the first signals into the second signal and translates the second signal into the first signals. M and N are different integers of 2 or more.
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公开(公告)号：US20230063484A1
公开(公告)日：2023-03-02
申请号：US17820603
申请日：2022-08-18
申请人： Greg Tresness
发明人： Greg Tresness
IPC分类号： H04B17/354 , H04B17/17 , H04B17/19
摘要： A method for leakage detection in an aeronautical band for a high split HFC network includes: providing a vehicle borne leak detector configured to perform substantially simultaneous upstream and downstream leakage detection; and while traversing a hub containing any quantity of high split nodes, performing a substantially simultaneous upstream leakage detection and a downstream leakage detection at about a same frequency. A system for leakage detection in an aeronautical band for a high split HFC network is also described.
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