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公开(公告)号：US11555887B2
公开(公告)日：2023-01-17
申请号：US16836146
申请日：2020-03-31
Applicant: Keysight Technologies, Inc.
Inventor： Dieter W. Vook , Paul L. Corredoura , Gregory S. Lee , Jefferson B. Burch
Abstract: A method and system are provided for generating a trigger signal from a radar signal received over the air from a radar under test. The method includes detecting power of the radar signal received from the radar under test at a radio frequency (RF) power detector, the radar signal including multiple bursts of RF energy in a burst pattern; identifying repeating radar frames from the burst pattern using the detected power of the radar signal, each radar frame having at least one burst; and creating trigger signals corresponding to the radar frames, respectively, by synchronizing to the at least one burst in each radar frame.
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公开(公告)号：US20220390808A1
公开(公告)日：2022-12-08
申请号：US17688119
申请日：2022-03-07
Applicant: Keysight Technologies, Inc.
Inventor： Gregory S. Lee
Abstract: Electro-optic (EO) modulators are disclosed. The EO modulators include a substrate and an EO material layer disposed over the substrate. The EO material layer and the substrate provide an optical waveguide having an optical group velocity (OGV). The EO modulators also include electrodes disposed over the EO material layer to provide a coplanar waveguide (CPW). The CPW has a radio-frequency (RF) phase velocity, and the electrodes have a gap therebetween. The EO modulators also include a superstrate disposed over the EO material layer and configured to be raised and lowered, or disposed and removed to tune the RF phase velocity to be substantially the same as the OGV, wherein a space exists between the superstrate and the EO material.
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公开(公告)号：US11408993B2
公开(公告)日：2022-08-09
申请号：US17188089
申请日：2021-03-01
Applicant: Keysight Technologies, Inc.
Inventor： Gregory S. Lee , Paul L. Corredoura
Abstract: A device for detecting and selectively reflecting an incident microwave signal or millimeter-wave signal is disclosed. The device includes a plurality of antennae disposed in an array; and a diode disposed at each input of each antenna, each diode having an input adapted to selectively receive a reverse bias signal, or a zero bias signal, or a forward bias signal. The device also includes a switching device connected to each input, and configured to selectively apply the forward bias signal, or the reverse bias signal or the zero bias signal to each of the diodes. In forward bias, each of the plurality of antennae reflects the incident microwave signal or millimeter wave signal; and in zero bias or reverse bias each of the plurality of antennae detects the incident microwave signal or millimeter wave signal.
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公开(公告)号：US10978810B2
公开(公告)日：2021-04-13
申请号：US16547681
申请日：2019-08-22
Applicant: Keysight Technologies, Inc.
Inventor： Gregory S. Lee , Paul L. Corredoura
Abstract: A device for selectively reflecting an incident microwave signal or millimeter-wave signal includes multiple antennae disposed in an array. Each antenna has an input adapted to selectively receive a forward bias signal or a zero bias signal. The device also includes a diode disposed at each input of each antenna. The device also includes a switching device connected to each input, and configured to selectively apply a forward bias or zero bias to each of the diodes. In forward bias, each of the antennae detects the incident microwave signal or millimeter wave signal, and in zero bias, each of the antennae reflects the incident microwave signal or millimeter wave signal.
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25.发明申请SIGNAL TRANSMISSION LINE AND ELECTRICAL CONNECTOR INCLUDING ELECTRICALLY THIN RESISTIVE LAYER AND ASSOCIATED METHODS 审中-公开信号传输线和电气连接器，包括电阻薄层及相关方法公开(公告)号：US20170047633A1
公开(公告)日：2017-02-16
申请号：US15008368
申请日：2016-01-27
Applicant: Keysight Technologies, Inc.
Inventor： Gregory S. Lee , Lewis R. Dove
CPC classification number: H01P3/06 , H01P1/162 , H01P5/026 , H01R9/0503 , H01R2201/24
Abstract: A signal transmission line or an electrical connector includes an inner electrical conductor, an outer electrical conductor, a dielectric region between the inner electrical conductor and the outer electrical conductor, and an electrically thin resistive layer within the dielectric region and concentric with the inner electrical conductor and the outer electrical conductor. The electrically thin resistive layer is a resistive layer configured to be transparent to a substantially transverse-electromagnetic (TEM) mode of transmission, while absorbing higher order modes of transmission.
Abstract translation: 信号传输线或电连接器包括内部电导体，外部电导体，内部电导体和外部电导体之间的电介质区域，以及电介质区域内的电薄层，并与内部导电体同心 和外部电导体。 电薄层是电阻层，被配置为对基本上横向电磁（TEM）的透射模式是透明的，同时吸收高阶传输模式。
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Patent Agency Ranking
公开(公告)号：US20220397661A1
公开(公告)日：2022-12-15
申请号：US16836146
申请日：2020-03-31
Applicant: Keysight Technologies, Inc.
Inventor： Dieter W. Vook , Paul L. Corredoura , Gregory S. Lee , Jefferson B. Burch
Abstract: A method and system are provided for generating a trigger signal from a radar signal received over the air from a radar under test. The method includes detecting power of the radar signal received from the radar under test at a radio frequency (RF) power detector, the radar signal including multiple bursts of RF energy in a burst pattern; identifying repeating radar frames from the burst pattern using the detected power of the radar signal, each radar frame having at least one burst; and creating trigger signals corresponding to the radar frames, respectively, by synchronizing to the at least one burst in each radar frame.
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公开(公告)号：US11520008B2
公开(公告)日：2022-12-06
申请号：US16995913
申请日：2020-08-18
Applicant: Keysight Technologies, Inc.
Inventor： Gregory S. Lee
Abstract: A method of testing vehicular radar includes acquiring binary phase codes of transmitters in a radar DUT; acquiring desired FOVs and desired angular resolutions of the transmitters to determine target angles of emulated targets; calculating far field phases of a PMCW signal for binary phase states of the transmit array at each of the target angles to determine resultant phase symbol streams; calculating excess roundtrip time delay for each emulation delay, between the DUT and the emulated targets, and each setup delay between the DUT and each emulator receiver; time-shifting the resultant phase symbol streams by the excess roundtrip time delays; subtracting the time-shifted resultant phase symbol streams from the resultant phase symbol streams to obtain difference phase symbol streams; modulating a PMCW signal transmitted by the DUT by the difference phase symbol streams; and emulating the echo signals at the target angles in response to the modulated PMCW signal.
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公开(公告)号：US20220260674A1
公开(公告)日：2022-08-18
申请号：US17175761
申请日：2021-02-15
Applicant: Keysight Technologies, Inc.
Inventor： Gregory Douglas Vanwiggeren , Todd Steven Marshall , Gregory S. Lee , Natalie Killeen , Christian Bourde
Abstract: A miniature radar target simulator (MRTS) and a system comprising a plurality of MRTS's are described. The MRTS and system are useful for emulating echo signals for a radar DUT with reduced interference. Illustrative radar test systems desirably generate the intended (emulated) radar targets and reduce unwanted (“ghost”) signals, which can result in “ghost targets,” and errant/ambient electromagnetic radiation that reduces the performance and reliability of known re-illuminators and systems including same.
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公开(公告)号：US20210181335A1
公开(公告)日：2021-06-17
申请号：US17188089
申请日：2021-03-01
Applicant: Keysight Technologies, Inc.
Inventor： Gregory S. Lee , Paul L. Corredoura
Abstract: A device for detecting and selectively reflecting an incident microwave signal or millimeter-wave signal is disclosed. The device includes a plurality of antennae disposed in an array; and a diode disposed at each input of each antenna, each diode having an input adapted to selectively receive a reverse bias signal, or a zero bias signal, or a forward bias signal. The device also includes a switching device connected to each input, and configured to selectively apply the forward bias signal, or the reverse bias signal or the zero bias signal to each of the diodes. In forward bias, each of the plurality of antennae reflects the incident microwave signal or millimeter wave signal; and in zero bias or reverse bias each of the plurality of antennae detects the incident microwave signal or millimeter wave signal.
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公开(公告)号：US09985733B1
公开(公告)日：2018-05-29
申请号：US15359190
申请日：2016-11-22
Applicant: Keysight Technologies, Inc.
Inventor： Gregory S. Lee , Christopher Coleman
CPC classification number: H04B17/29 , H04B17/102 , H04B17/15
Abstract: A test system for testing a DUT includes a first array of probe elements located in the near field of the DUT antenna that is either mechanically translated or electrically scanned in a first direction while being electrically scanned in a second direction that is different from the first direction to sense a bounded radiation surface comprising RF signals transmitted by the DUT antenna. A test system receiver receives first near field values contained in the RF signals and inputs them to processing logic of the test system. A reference measurement apparatus of the test system detects the RF signals and obtains reference information therefrom. Processing logic of the test system uses the reference information to correct near field phase values contained in or derived from the first near field values for phase shift between the local oscillator (LO) of the DUT and the LO of the test system.
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