-
公开(公告)号：US20240106490A1
公开(公告)日：2024-03-28
申请号：US17950299
申请日：2022-09-22
Applicant: QUALCOMM INCORPORATED
Inventor： Chinmaya MISHRA , Abdellatif BELLAOUAR , Damin CAO , Rajagopalan RANGARAJAN , Kevin Hsi-Huai WANG
CPC classification number: H04B1/44 , H03F3/245 , H04B1/0067 , H03F2200/165 , H03F2200/171 , H03F2200/294 , H03F2200/451
Abstract: A transmit (TX) local oscillator (LO) leakage calibration circuit including a transceiver having a transmit portion and a receive portion, an interface circuit connected to the transmit portion and the receive portion, an impedance control circuit connected to a low noise amplifier (LNA) in the receive portion, the impedance control circuit configured to adjust an input impedance for the LNA, a power detector coupled to an output of the LNA, and a local oscillator cancellation element connected to the power detector, the local oscillator cancellation element configured to adjust an input to the transmit portion based on TX LO leakage detected by the power detector.
-
公开(公告)号：US20180205413A1
公开(公告)日：2018-07-19
申请号：US15872695
申请日：2018-01-16
Applicant: QUALCOMM Incorporated
Inventor： Chirag Dipak PATEL , Lai Kan LEUNG , Zhang JIN , Chinmaya MISHRA , Ravi SRIDHARA , Youngchang YOON
Abstract: Various aspects described herein relate to low-loss multi-band multiplexing schemes for a wireless communications system, for example, a 5th Generation (5G) New Radio (NR) system. In an aspect, a multiplexer for multi-band wireless communications comprises at least one tuning component configured to transmit or receive at least one signal within a frequency band that is selected from a plurality of frequency bands. The multiplexer further comprises at least one combining component, communicatively coupled with the at least one tuning component, configured to transmit or receive the at least one signal within the selected frequency band. In an aspect, the at least one tuning component is integrated on a chip and the at least one combining component is not integrated on the chip.
-
公开(公告)号：US20250096459A1
公开(公告)日：2025-03-20
申请号：US18471052
申请日：2023-09-20
Applicant: QUALCOMM Incorporated
Inventor： Roberto RIMINI , Udara FERNANDO , Chinmaya MISHRA , Chirag Dipak PATEL , Ahmad Bassil ZOUBI
Abstract: Certain aspects provide a method for wireless communication by a device. The method generally includes: transmitting a transmit signal via a first antenna; receiving a first receive signal via a second antenna and a second receive signal via a third antenna, the first receive signal and the second receive signal being associated with the transmit signal; generating a first phase-shifted signal via a first phase shifter based on the first receive signal, and a second phase-shifted signal via a second phase shifter based on the second receive signal; and combining the first phase-shifted signal and the second phase-shifted signal to generate a combined receive signal, wherein a phase-shift setting of at least one of the first phase shifter or the second phase shifter is controlled based on at least one of a mutual coupling component or a phase noise of the combined receive signal.
-
公开(公告)号：US20240429587A1
公开(公告)日：2024-12-26
申请号：US18339509
申请日：2023-06-22
Applicant: QUALCOMM Incorporated
Inventor： Lisette ZHANG , Chinmaya MISHRA , Med NARIMAN
Abstract: An inductor structure includes a first quadrupole inductor, and a second quadrupole inductor, wherein the second quadrupole inductor overlaps the first quadrupole inductor. In certain aspects, the inductor structure may be included in a filter, which may also include one or more capacitors coupled to the inductor structure.
-
公开(公告)号：US20240204795A1
公开(公告)日：2024-06-20
申请号：US18068941
申请日：2022-12-20
Applicant: QUALCOMM Incorporated
Inventor： Ashok SWAMINATHAN , Nitz SAPUTRA , Negar RASHIDI , Shahin MEHDIZAD TALEIE , Chinmaya MISHRA , Dongwon SEO , Jong Hyeon PARK , Sang-June PARK
Abstract: Methods and apparatus for sharing digital-to-analog (DAC) converters in a reconfigurable DAC circuit to support two or more transmit chains of a wireless transmitter configured for different radio access technologies (RATs) and/or different transmitter architectures. One example DAC circuit generally includes at least four DACs and a plurality of switches coupled to outputs of the at least four DACs such that the DAC circuit is configured as a multi-channel DAC circuit with at least four channels for a first set of one or more frequency bands and as an interleaved DAC circuit with at least two channels for a second set of one or more frequency bands different from the first set of frequency bands.
-
Patent Agency Ranking
公开(公告)号：US20230258699A1
公开(公告)日：2023-08-17
申请号：US18306616
申请日：2023-04-25
Applicant: QUALCOMM Incorporated
Inventor： Abdellatif BELLAOUAR , Arul BALASUBRAMANIYAN , Gurkanwal Singh SAHOTA , Muhammad HASSAN , Jorge GARCIA , Bhushan Shanti ASURI , Ravi SRIDHARA , Omar Essam EL-AASSAR , Chinmaya MISHRA
IPC: G01R21/10 , G01R21/133 , H03F3/45
CPC classification number: G01R21/10 , G01R21/133 , H03F3/45475 , H03F2200/171 , H03F2200/294 , H03F2200/451 , H03M1/12
Abstract: In certain aspects, a method is provided for measuring power using a resistive element coupled between a power amplifier and an antenna. The method includes squaring a voltage from a first terminal of the resistive element to obtain a first signal, squaring a voltage from a second terminal of the resistive element to obtain a second signal, and generating a measurement signal based on a difference between the first signal and the second signal. In some implementations, the resistive element is implemented with a power switch.
-
公开(公告)号：US20220416737A1
公开(公告)日：2022-12-29
申请号：US17356424
申请日：2021-06-23
Applicant: QUALCOMM Incorporated
Inventor： Jeremy GOLDBLATT , Arul BALASUBRAMANIYAN , Chinmaya MISHRA , Damin CAO , Bhushan Shanti ASURI
Abstract: A peak detector for a power amplifier is provided that includes a threshold voltage detector configured to pulse a detection current in response to an amplified output signal from the amplifier exceeding a peak threshold. A plurality of such peak detectors may be integrated with a corresponding plurality of power amplifiers in a transmitter. Should any peak detector assert an alarm signal or more than a threshold number of alarm signals during a given period, a controller reduces a gain for the plurality of power amplifiers.
-
公开(公告)号：US20220200576A1
公开(公告)日：2022-06-23
申请号：US17467494
申请日：2021-09-07
Applicant: QUALCOMM INCORPORATED
Inventor： Kai ZHAN , Chinmaya MISHRA
Abstract: A dual mode notch filter for use in a multi-band millimeter wave (mmW) transmitter includes a transmit filter circuit disposed between two amplifiers in a mmW transmit signal path, the transmit filter circuit formed by at least one switch, at least one capacitor, and a double-tuned transformer, the transmit filter circuit having at least two modes configured to selectively filter a spurious signal in at least a first communication band.
-
公开(公告)号：US20220200557A1
公开(公告)日：2022-06-23
申请号：US17127242
申请日：2020-12-18
Applicant: QUALCOMM INCORPORATED
Inventor： Marco VIGILANTE , Chinmaya MISHRA
Abstract: An amplifier circuit for a millimeter wave (mmW) communication system includes an amplifier coupled to a matching network, and a variable gain control circuit in the matching network, the variable gain control circuit having an adjustable gain control resistance, the adjustable gain control resistance having adjustable segments and a center node therebetween, the center node coupled to an alternating current (AC) ground.
-
公开(公告)号：US20220018882A1
公开(公告)日：2022-01-20
申请号：US16932589
申请日：2020-07-17
Applicant: QUALCOMM Incorporated
Inventor： Abdellatif BELLAOUAR , Arul BALASUBRAMANIYAN , Gurkanwal Singh SAHOTA , Muhammad HASSAN , Jorge GARCIA , Bhushan Shanti ASURI , Ravi SRIDHARA , Omar Essam EL-AASSAR , Chinmaya MISHRA
IPC: G01R21/10 , H03F3/45 , G01R21/133
Abstract: In certain aspects, a method is provided for measuring power using a resistive element coupled between a power amplifier and an antenna. The method includes squaring a voltage from a first terminal of the resistive element to obtain a first signal, squaring a voltage from a second terminal of the resistive element to obtain a second signal, and generating a measurement signal based on a difference between the first signal and the second signal. In some implementations, the resistive element is implemented with a power switch.
-
-
-
-
-
-
-
-
-
Search Results
20
records
(took 0.042 seconds)
