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1. 发明授权

US12063139B1 Closed-loop quadrature converter 有权
公开(公告)号：US12063139B1
公开(公告)日：2024-08-13
申请号：US17977232
申请日：2022-10-31
申请人： Anritsu Company
发明人： Donald Anthony Bradley
IPC分类号： H04L27/36
CPC分类号： H04L27/364
摘要： Circuits, methods, and apparatus that can provide in-phase and quadrature LO signals having an accurate phase relationship and matching amplitudes. An example can provide a quadrature modulator having phase-correction circuitry and amplitude-correction circuitry. The quadrature modulator can include a quadrature hybrid to receive an LO signal from a phase-locked loop or other clock source. The quadrature hybrid can provide in-phase and quadrature LO signals to phase-correction circuitry, which can accurately align a difference in the phase of the in-phase and quadrature signals to 90 degrees. The amplitudes of the resulting signals can be adjusted to have a desired amplitude using amplitude-correction circuitry. The amplitude-and-phase-corrected LO signals can be used to modulate in-phase and quadrature components of a baseband signal. The modulated products can be combined, gained, and filtered as necessary for wireless transmission, device testing, or other purpose.

2. 发明授权

US12009826B1 Phase noise suppression for reference oscillator 有权
公开(公告)号：US12009826B1
公开(公告)日：2024-06-11
申请号：US17983253
申请日：2022-11-08
申请人： Anritsu Company
发明人： Nikolay Shtin , Oleksandr Chenakin , Suresh P. Ojha
IPC分类号： H03L7/093 , H03L7/099
CPC分类号： H03L7/093 , H03L7/099
摘要： Circuits, methods, and apparatus that can reduce or suppress phase noise in a frequency synthesizer. A phase-noise-suppression system can detect phase noise in an input signal, amplify the detected phase noise, subtract the detected phase noise from the input signal, and provide an output signal having reduced phase noise.

3. 发明公开

US20230370102A1 SELF-TUNING RF LINK 审中-公开
公开(公告)号：US20230370102A1
公开(公告)日：2023-11-16
申请号：US17741832
申请日：2022-05-11
申请人： Anritsu Company
发明人： Donald Anthony Bradley
IPC分类号： H04B1/10 , H04B1/00
CPC分类号： H04B1/1027 , H04B1/0057 , H04B2001/1072
摘要： RF receivers having self-tuning capabilities. An example can provide self-tuning by detecting a first envelope of a first demodulated output signal and a second envelope of a second demodulated output signal. A difference between the detected envelopes can be filtered to generate a control signal. The control signal can be applied to a voltage-controlled crystal oscillator. In-phase and quadrature outputs of the voltage-controlled crystal oscillator can be used to demodulate a received signal to demodulate in-phase and quadrature signals. Loop gain dependency on input signal amplitude can be reduced by using logarithmic amplifiers after the envelope detectors, or by replacing the envelope detectors and logarithmic amplifiers with demodulating logarithmic amplifiers.

4. 发明授权

US11558129B1 System and method for calibrating vector network analyzer modules 有权
公开(公告)号：US11558129B1
公开(公告)日：2023-01-17
申请号：US17208845
申请日：2021-03-22
申请人： ANRITSU COMPANY
发明人： Jon Martens , Gary Chock , Jamie Tu , Elena Vayner , Amruth Sai Gandavarapu , Mrunal Damle
IPC分类号： H04B17/309 , H04B17/14
摘要： Systems and methods for calibrating VNA modules which dynamically assigns match utilization to improve overall calibration accuracy and reduce problems from a non-optimal set of calibration components and simplify user input requirements during calibration.

5. 发明授权

US11121514B1 Flange mount coaxial connector system 有权
公开(公告)号：US11121514B1
公开(公告)日：2021-09-14
申请号：US16573870
申请日：2019-09-17
申请人： ANRITSU COMPANY
发明人： Thomas H Roberts , Jon Martens
IPC分类号： H01R13/631 , H01R31/06 , H01P5/02 , H01R13/03 , H01P3/06 , H01R13/646 , H01R13/639 , H01R24/54 , H01P1/04 , H01R24/52 , H01R13/6473 , H01R13/24 , H01R24/40
摘要： A coaxial connector system is provided suitable for connection of high-frequency components such as high-band test modules and probes. The coaxial connector system uses a flange mating element aligned using precession guiding pins. A center conductor assembly is captive in a center bore of the flange and includes elastomer contacts which are compressed against the coaxial center conductors of the high=frequency components. The flange mount coaxial connector system provides a robust, mechanically stable mount which minimizes electrical performance changes with mechanical torque as compared to screw on connectors.

6. 发明授权

US10871508B1 Nonlinear transmission line (NLTL)-based miniature reflectometers with reduced heat dissipation and scalable tether length 有权
公开(公告)号：US10871508B1
公开(公告)日：2020-12-22
申请号：US16024788
申请日：2018-06-30
申请人： ANRITSU COMPANY
发明人： Thomas Roberts , Karam Noujeim
IPC分类号： G01R1/24 , G01R23/20 , G01R1/04 , G01R27/06
CPC分类号： G01R1/24 , G01R1/0416 , G01R23/20 , G01R27/06
摘要： A system for measuring an electrical response of a device under test (DUT) includes a reflectometer with reduced heat dissipation used with a vector network analyzer (VNA). The reflectometer is tethered to the VNA using a tether of scalable length which carries low frequencies. The reflectometer has a distributed harmonic generator including a non-linear transmission line (NLTL) for multiplying a frequency of an RF signal received from the VNA to generate a test signal having a frequency in the millimeter wave range at a test port connected to the DUT. A sampler in the reflectometer receives a local oscillator (LO) signal from the VNA and includes another NLTL for receiving the LO signal and generating pulses at a frequency in the millimeter wave range. When the test signal is transmitted to the DUT, the sampler outputs intermediate frequency signals which are transmitted to the VNA for characterization of the DUT.

7. 发明授权

US10686681B2 Systems and methods for measuring effective customer impact of network problems in real-time using streaming analytics 有权
公开(公告)号：US10686681B2
公开(公告)日：2020-06-16
申请号：US15470716
申请日：2017-03-27
申请人： ANRITSU COMPANY
发明人： Carlo Medas , Davide Motta
IPC分类号： H04L12/26 , H04L12/24 , H04L12/801
摘要： A system used for identifying issues within a telecom network. Data is obtained from sources including probes and network elements. KPIs are identified for real-time streaming aggregation. Streaming data related to the KPIs is aggregated and an approximation of count-distinct subscribers and volume count is calculated, as well as count-distinct subscribers aggregating by each identified KPI. Drill objects found in the aggregated data are identified based on the calculations and real-time trending records are generated and stored for each drill object using an exponential moving average. Baseline averages are generated based on the real-time trending records. An increase in errors can then be detected based on the baseline averages and additionally aggregated real-time streaming data. Deviations in each drill object contributing to the detected increase in errors are then analyzed and a full case report is generated based on details of the deviations.

8. 发明授权

US10481178B1 Method for marking data in time/frequency measurement 有权
公开(公告)号：US10481178B1
公开(公告)日：2019-11-19
申请号：US14521336
申请日：2014-10-22
申请人： ANRITSU COMPANY
发明人： Jon Martens , David Judge , Jamie Tu
IPC分类号： G01R13/02 , G01R31/317 , G11B27/30 , G11B20/18
摘要： A method for marking relevant data within an acquired set of data in accordance with an embodiment includes receiving a location of a first synchronization event within a synchronizing time pulse synchronized with the acquired set of data, searching the synchronizing time pulse within a predetermined window for the first synchronization event based on the location, identifying the first synchronization event based on the search, and obtaining data from the acquired set of data within an offset range determined based on the identified first synchronization event. The steps are then iteratively repeated for a number of periods.

9. 发明授权

US10225073B1 System and method for continuous acquisition of data during frequency and power sweeps with coherent measurement 有权
公开(公告)号：US10225073B1
公开(公告)日：2019-03-05
申请号：US15442415
申请日：2017-02-24
申请人： ANRITSU COMPANY
发明人： Jon S. Martens , Elena Vayner , Jamie Tu
IPC分类号： G01R27/28 , H04L7/033 , H04L12/26 , G01R31/00
摘要： A system for obtaining measurements for a device under test (DUT) includes a vector network analyzer including a storage medium and a controller for controlling a sweep and a trigger driver configured to provide a synchronization signal to the DUT and the controller to synchronize internal signal components of the vector network analyzer including signal sources, local oscillators (LOs) and an analog-to-digital converter (ADC) clock. A signal is received by the vector network analyzer in response to a test signal generated and transmitted to the DUT. Data related to the received signal is acquired and stored in at the storage medium. The controller inserts a mark into the time record based on an event of the sweep for identifying data from the received signal associated with the event within the time record.

10. 发明授权

US09977068B1 Frequency multiplexer for use with instruments for measuring passive intermodulation (PIM) 有权
公开(公告)号：US09977068B1
公开(公告)日：2018-05-22
申请号：US14806366
申请日：2015-07-22
申请人： ANRITSU COMPANY
发明人： Donald Bradley
IPC分类号： G01R31/11 , G01R23/20 , G01R27/28
CPC分类号： G01R31/11 , G01R23/20 , G01R27/28
摘要： A device for combining two or more tones generated by a measuring instrument for output to a port includes a combiner point, a transmission path extending from the combiner point to the port, two or more signal source filters each adapted to be connected to a respective signal source of the measuring instrument and one or more receiver filters each adapted to be connected to a receiver of the measuring instrument. Each of the signal source filters and receiver filters includes a cavity, a resonator arranged within the cavity and connected with the combiner point at a distance of one quarter of a wavelength of a signal having a center frequency of the passband of the filter, and a solid dielectric filter connected with the cavity.

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