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公开(公告)号：US10459021B2
公开(公告)日：2019-10-29
申请号：US15268016
申请日：2016-09-16
Applicant: Keysight Technologies, Inc.
IPC: G01R29/10
Abstract: Various illustrative embodiments disclosed herein generally pertain to detecting defects by using a radio-frequency debugging signal transmitted by a transmitting antenna array towards a receiving antenna located in a far-field region of the transmitting antenna array. The radio-frequency debugging signal, which is configured to provide information pertaining to a signal radiation distribution of the transmitting antenna array, is received in the receiving antenna and conveyed to a test unit. The test unit digitizes the received radio-frequency debugging signal to obtain a digital dataset and applies a back-propagation algorithm to the digital dataset for deriving a reconstructed near-field representation of the transmitting array. The reconstructed near-field representation is compared to a signal radiation reference template in order to detect a defective amplitude and/or a defective phase that is indicative of a defect in the transmitting antenna array and/or a device-under-test coupled to the transmitting antenna array.
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Patent Agency Ranking
公开(公告)号：US10458851B2
公开(公告)日：2019-10-29
申请号：US15887994
申请日：2018-02-03
Applicant: Keysight Technologies, Inc.
Inventor： Gregory Steven Lee , Douglas Michael Baney , Todd Steven Marshall , Gregory Douglas VanWiggeren
Abstract: Illustrative embodiments disclosed herein pertain to a thermal imaging system that includes a thermal imaging sheet having an array of thermal unit cells for generating a thermal footprint in response to receiving an RF signal. The thermal footprint is composed of an array of hotspots having a first set of hotspots indicative of a radiation characteristic of a first polarization component of the RF signal, and a second set of hotspots indicative of a radiation characteristic of a second polarization component of the RF signal. Each thermal unit cell includes a first RF antenna and a second RF antenna oriented orthogonal with respect to each other. The first RF antenna includes a terminating resistor that generates a hotspot among the first set of hotspots and the second RF antenna includes another terminating resistor that generates a hotspot in the second set of hotspots.
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公开(公告)号：US20250102624A1
公开(公告)日：2025-03-27
申请号：US18373933
申请日：2023-09-27
Applicant: Keysight Technologies, Inc.
Inventor： Gregory Steven Lee , Jefferson Bernette Burch , Dietrich Werner Vook
IPC: G01S7/40
Abstract: A method for phase-conjugate target emulation for testing a DSB FMCW radar includes selecting a proxy transponder from an array of frequency-shifting transponders to transmit an emulated target radar signal to a radar DUT. The proxy transponder is located at a mirror image location with respect to a desired DoA of a signal from an emulated radar target. The method further includes receiving a radar signal from the radar DUT and generating an output signal to be transmitted by the proxy transponder to the radar DUT by swapping roles of a normal sideband component and a ghost sideband component of the output signal such that the ghost sideband component appears to the radar DUT as a desired emulant and the normal sideband component appears to the radar DUT an undesired ghost sideband component. The method further includes transmitting the output signal to the radar DUT.
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4.发明申请公开(公告)号：US20180080967A1
公开(公告)日：2018-03-22
申请号：US15268016
申请日：2016-09-16
Applicant: Keysight Technologies, Inc.
IPC: G01R29/10
CPC classification number: G01R29/10
Abstract: Various illustrative embodiments disclosed herein generally pertain to detecting defects by using a radio-frequency debugging signal transmitted by a transmitting antenna array towards a receiving antenna located in a far-field region of the transmitting antenna array. The radio-frequency debugging signal, which is configured to provide information pertaining to a signal radiation distribution of the transmitting antenna array, is received in the receiving antenna and conveyed to a test unit. The test unit digitizes the received radio-frequency debugging signal to obtain a digital dataset and applies a back-propagation algorithm to the digital dataset for deriving a reconstructed near-field representation of the transmitting array. The reconstructed near-field representation is compared to a signal radiation reference template in order to detect a defective amplitude and/or a defective phase that is indicative of a defect in the transmitting antenna array and/or a device-under-test coupled to the transmitting antenna array.
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公开(公告)号：US20180040962A1
公开(公告)日：2018-02-08
申请号：US15230083
申请日：2016-08-05
Applicant: Keysight Technologies, Inc.
Inventor： Gregory Steven Lee
CPC classification number: H01Q15/148 , H01Q15/147
Abstract: Various illustrative embodiments disclosed herein generally pertain to an RF reflector incorporating a number of reflection apodization elements, each of which is mounted upon a signal reflecting surface of the RF reflector with an inner edge in substantial contact with an inner portion of the signal reflecting surface and an outer edge elevated above a peripheral portion of the signal reflecting surface. The outer edge is elevated to a height corresponding to a quarter-wavelength of a predefined wavelength. This arrangement bestows a gradually variant reflectance characteristic to the RF reflector, with the inner edge of each reflection apodization element providing substantially the same amount of reflectance as the signal reflecting surface of the RF reflector and the outer edge providing substantially no reflectance at the peripheral portion of the signal reflecting surface. Intermediate portions of the reflection apodization element provide various levels of reflectance with no abrupt changes or discontinuities.
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公开(公告)号：US20190242755A1
公开(公告)日：2019-08-08
申请号：US15887994
申请日：2018-02-03
Applicant: Keysight Technologies, Inc.
Inventor： Gregory Steven Lee , Douglas Michael Baney , Todd Steven Marshall , Gregory Douglas VanWiggeren
Abstract: Illustrative embodiments disclosed herein pertain to a thermal imaging system that includes a thermal imaging sheet having an array of thermal unit cells for generating a thermal footprint in response to receiving an RF signal. The thermal footprint is composed of an array of hotspots having a first set of hotspots indicative of a radiation characteristic of a first polarization component of the RF signal, and a second set of hotspots indicative of a radiation characteristic of a second polarization component of the RF signal. Each thermal unit cell includes a first RF antenna and a second RF antenna oriented orthogonal with respect to each other. The first RF antenna includes a terminating resistor that generates a hotspot among the first set of hotspots and the second RF antenna includes another terminating resistor that generates a hotspot in the second set of hotspots.
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