Patents by Inventor Klaas van Zalinge
Klaas van Zalinge has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 10033337Abstract: A multi-stage low-noise amplifier (LNA) device with a band pass response includes a first LNA in series with a second LNA. The device further includes multiple outputs coupled to the second LNA. Each of the outputs is capable of being active at the same time. The device further includes a high pass filter coupled between the first LNA and the second LNA.Type: GrantFiled: October 6, 2016Date of Patent: July 24, 2018Assignee: QUALCOMM IncorporatedInventors: Chirag Dipak Patel, Sasha Vujcic, Aleksandar Miodrag Tasic, Timothy Gathman, Wu-Hsin Chen, Klaas Van Zalinge
-
Patent number: 10014845Abstract: A circuit includes an active balun having an RF signal input and having differential signal outputs, the active balun including a first pair of transistors coupled to the RF signal input, the first pair of transistors including a first transistor of a first type and a second transistor of a second type, wherein the first type and second type are complementary; and an intermodulation distortion (IMD) sink circuit having an operational amplifier (op amp) coupled between a first node and a second node, wherein the first transistor and second transistor are coupled in series between the first node and the second node.Type: GrantFiled: March 28, 2017Date of Patent: July 3, 2018Assignee: QUALCOMM IncorporatedInventors: Timothy Donald Gathman, Chirag Dipak Patel, Sasha Vujcic, Aleksandar Miodrag Tasic, Wu-Hsin Chen, Klaas van Zalinge
-
Patent number: 9991875Abstract: A reconfigurable filter circuit has a first path including a transimpedance amplifier (TIA). The transimpedance amplifier has an input that receives an input current and an output that outputs a voltage. The reconfigurable filter circuit also includes a switchable feedback path. The switchable feedback path includes a first low-pass filter coupled to an output of the TIA. The switchable feedback path also includes a first switch to couple the feedback path to provide a feedback current to the first path resulting in a bandpass response in the output voltage when the switch is closed and a low-pass response in the output voltage when the switch is open.Type: GrantFiled: November 15, 2016Date of Patent: June 5, 2018Assignee: QUALCOMM IncorporatedInventors: Timothy Donald Gathman, Ojas Choksi, Aleksandar Miodrag Tasic, Sasha Vujcic, Chirag Dipak Patel, Wu-Hsin Chen, Klaas Van Zalinge
-
Patent number: 9948239Abstract: A method and apparatus are disclosed for a configurable mixer capable of operating in a linear, a legacy, and a low-power mode. In the linear mode, the configurable mixer is configured to operate as a double-balanced mixer to multiply a first differential signal by a second differential signal. In the legacy mode, the configurable mixer is configured to as a double-balanced mixer to multiply a differential signal by a single-ended signal. In the low-power mode, the configurable mixer is configured to operate as a single-balanced mixer to multiply a differential signal by a single-ended signal. The operating mode of the configurable mixer may be based, at least in part, on a mode control signal. In some embodiments, the configurable mixer may be included in an analog front end of a wireless communication device.Type: GrantFiled: September 21, 2016Date of Patent: April 17, 2018Assignee: QUALCOMM IncorporatedInventors: Kiyong Choi, Yi Zeng, Hong Sun Kim, Sasha Vujcic, Chirag Dipak Patel, Aleksandar Miodrag Tasic, Timothy Donald Gathman, Wu-Hsin Chen, Klaas van Zalinge
-
Publication number: 20180083574Abstract: A method and apparatus are disclosed for a configurable mixer capable of operating in a linear, a legacy, and a low-power mode. In the linear mode, the configurable mixer is configured to operate as a double-balanced mixer to multiply a first differential signal by a second differential signal. In the legacy mode, the configurable mixer is configured to as a double-balanced mixer to multiply a differential signal by a single-ended signal. In the low-power mode, the configurable mixer is configured to operate as a single-balanced mixer to multiply a differential signal by a single-ended signal. The operating mode of the configurable mixer may be based, at least in part, on a mode control signal. In some embodiments, the configurable mixer may be included in an analog front end of a wireless communication device.Type: ApplicationFiled: September 21, 2016Publication date: March 22, 2018Inventors: Kiyong Choi, Yi Zeng, Hong Sun Kim, Sasha Vujcic, Chirag Dipak Patel, Aleksandar Miodrag Tasic, Timothy Donald Gathman, Wu-Hsin Chen, Klaas van Zalinge
-
Publication number: 20180048294Abstract: A circuit includes an active balun having an RF signal input and having differential signal outputs, the active balun including a first pair of transistors coupled to the RF signal input, the first pair of transistors including a first transistor of a first type and a second transistor of a second type, wherein the first type and second type are complementary; and an intermodulation distortion (IMD) sink circuit having an operational amplifier (op amp) coupled between a first node and a second node, wherein the first transistor and second transistor are coupled in series between the first node and the second node.Type: ApplicationFiled: March 28, 2017Publication date: February 15, 2018Inventors: Timothy Donald Gathman, Chirag Dipak Patel, Sasha Vujcic, Aleksandar Miodrag Tasic, Wu-Hsin Chen, Klaas van Zalinge
-
Publication number: 20180048271Abstract: A multi-stage low-noise amplifier (LNA) device with a band pass response includes a first LNA in series with a second LNA. The device further includes multiple outputs coupled to the second LNA. Each of the outputs is capable of being active at the same time. The device further includes a high pass filter coupled between the first LNA and the second LNA.Type: ApplicationFiled: October 6, 2016Publication date: February 15, 2018Inventors: Chirag Dipak PATEL, Sasha VUJCIC, Aleksandar Miodrag TASIC, Timothy GATHMAN, Wu-Hsin CHEN, Klaas VAN ZALINGE
-
Publication number: 20180048293Abstract: A reconfigurable filter circuit has a first path including a transimpedance amplifier (TIA). The transimpedance amplifier has an input that receives an input current and an output that outputs a voltage. The reconfigurable filter circuit also includes a switchable feedback path. The switchable feedback path includes a first low-pass filter coupled to an output of the TIA. The switchable feedback path also includes a first switch to couple the feedback path to provide a feedback current to the first path resulting in a bandpass response in the output voltage when the switch is closed and a low-pass response in the output voltage when the switch is open.Type: ApplicationFiled: November 15, 2016Publication date: February 15, 2018Inventors: Timothy Donald GATHMAN, Ojas CHOKSI, Aleksandar Miodrag TASIC, Sasha VUJCIC, Chirag Dipak PATEL, Wu-Hsin CHEN, Klaas VAN ZALINGE
-
Patent number: 9603187Abstract: Omni-band amplifiers support multiple band groups. In an exemplary design, an apparatus (e.g., a wireless device, an integrated circuit, etc.) includes at least one gain transistor and a plurality of cascode transistors for a plurality of band groups. Each band group covers a plurality of bands. The gain transistor(s) receive an input radio frequency (RF) signal. The cascode transistors are coupled to the gain transistor(s) and provide an output RF signal for one of the plurality of band groups. In an exemplary design, the gain transistor(s) include a plurality of gain transistors for the plurality of band groups. One gain transistor and one cascode transistor are enabled to amplify the input RF signal and provide the output RF signal for the selected band group. The gain transistors may be coupled to different taps of a single source degeneration inductor or to different source degeneration inductors.Type: GrantFiled: November 14, 2012Date of Patent: March 21, 2017Assignee: QUALCOMM IncorporatedInventors: Aleksandar Miodrag Tasic, Anosh Bomi Davierwalla, Chiewcharn Narathong, Klaas van Zalinge
-
Patent number: 9379673Abstract: A device includes a main two-stage low noise amplifier (LNA) configured to amplify a carrier aggregation (CA) communication signal, the main two-stage LNA comprising a first LNA stage and a second LNA stage, an output of the first LNA stage having a first stage second order intermodulation product, the second LNA stage comprising a phase-inverter configured to phase-invert the output of the first LNA stage to generate a second stage phase-inverted output, and an auxiliary LNA stage coupled to the main two-stage LNA, the auxiliary LNA stage configured to cancel the first stage second order intermodulation product.Type: GrantFiled: May 30, 2014Date of Patent: June 28, 2016Assignee: Qualcomm IncorporatedInventors: Chuan Wang, Dongling Pan, Yiwu Tang, Klaas van Zalinge, Muhammad Hassan
-
Patent number: 9374043Abstract: A device includes a load circuit configured to receive an amplified communication signal, the load circuit having a center tapped inductor structure configured to divide the amplified communication signal into a first portion and a second portion, the load circuit configured to resonate at a harmonic of the amplified communication signal.Type: GrantFiled: May 30, 2014Date of Patent: June 21, 2016Assignee: Qualcomm IncorporatedInventors: Chuan Wang, Dongling Pan, Yiwu Tang, Klaas van Zalinge, Muhammad Hassan
-
Patent number: 9300337Abstract: A device includes, a reconfigurable baseband filter configured to receive a communication signal having a first carrier and a second carrier, the first carrier and the second carrier having non-contiguous respective frequencies, the reconfigurable baseband filter having a first filter portion and a second filter portion, the first filter portion and the second filter portion each comprising respective first and second amplification stages, and a plurality of switches associated with the first filter portion and the second filter portion, the plurality of switches for configuring the reconfigurable baseband filter into a plurality of sub-filters, each configured to generate at least one of a low pass filter output and a bandpass filter output.Type: GrantFiled: December 20, 2013Date of Patent: March 29, 2016Assignee: Qualcomm IncorporatedInventors: Aleksandar Miodrag Tasic, Klaas van Zalinge, Gurkanwal Singh Sahota, Jeremy Darren Dunworth
-
Patent number: 9271239Abstract: A device includes a multi-mode low noise amplifier (LNA) having a first amplifier stage, and a second amplifier stage coupled to the first amplifier stage, the second amplifier stage having a plurality of amplification paths configured to amplify a plurality of carrier frequencies, the first amplifier stage configured to bypass the second amplifier stage when the first amplifier stage is configured to amplify a single carrier frequency.Type: GrantFiled: February 14, 2014Date of Patent: February 23, 2016Assignee: Qualcomm IncorporatedInventors: Muhammad Hassan, Yiwu Tang, Klaas van Zalinge, Chuan Wang, Dongling Pan
-
Publication number: 20150349722Abstract: A device includes a load circuit configured to receive an amplified communication signal, the load circuit having a center tapped inductor structure configured to divide the amplified communication signal into a first portion and a second portion, the load circuit configured to resonate at a harmonic of the amplified communication signal.Type: ApplicationFiled: May 30, 2014Publication date: December 3, 2015Applicant: QUALCOMM IncorporatedInventors: Chuan Wang, Dongling Pan, Yiwu Tang, Klaas van Zalinge, Muhammad Hassan
-
Publication number: 20150349724Abstract: A device includes a main two-stage low noise amplifier (LNA) configured to amplify a carrier aggregation (CA) communication signal, the main two-stage LNA comprising a first LNA stage and a second LNA stage, an output of the first LNA stage having a first stage second order intermodulation product, the second LNA stage comprising a phase-inverter configured to phase-invert the output of the first LNA stage to generate a second stage phase-inverted output, and an auxiliary LNA stage coupled to the main two-stage LNA, the auxiliary LNA stage configured to cancel the first stage second order intermodulation product.Type: ApplicationFiled: May 30, 2014Publication date: December 3, 2015Applicant: QUALCOMM IncorporatedInventors: Chuan Wang, Dongling Pan, Yiwu Tang, Klaas van Zalinge, Muhammad Hassan
-
Patent number: 9154357Abstract: Multiple-input multiple-output (MIMO) low noise amplifiers (LNAs) supporting carrier aggregation are disclosed. In an exemplary design, an apparatus (e.g., a wireless device, an integrated circuit, etc.) includes a MIMO LNA having a plurality of gain circuits, a drive circuit, and a plurality of load circuits. The gain circuits receive at least one input radio frequency (RF) signal and provide at least one amplified RF signal. Each gain circuit receives and amplifies one input RF signal and provides one amplified RF signal when the gain circuit is enabled. The at least one input RF signal include transmissions sent on multiple carriers at different frequencies to the wireless device. The drive circuit receives the at least one amplified RF signal and provides at least one drive RF signal. The load circuits receive the at least one drive RF signal and provide at least one output RF signal.Type: GrantFiled: August 24, 2012Date of Patent: October 6, 2015Assignee: QUALCOMM IncorporatedInventors: Aleksandar Miodrag Tasic, Anosh Bomi Davierwalla, Berke Cetinoneri, Jusung Kim, Chiewcharn Narathong, Klaas van Zalinge, Gurkanwal Singh Sahota, James Ian Jaffee
-
Publication number: 20150237583Abstract: A device includes a multi-mode low noise amplifier (LNA) having a first amplifier stage, and a second amplifier stage coupled to the first amplifier stage, the second amplifier stage having a plurality of amplification paths configured to amplify a plurality of carrier frequencies, the first amplifier stage configured to bypass the second amplifier stage when the first amplifier stage is configured to amplify a single carrier frequency.Type: ApplicationFiled: February 14, 2014Publication date: August 20, 2015Applicant: QUALCOMM IncorporatedInventors: Muhammad Hassan, Yiwu Tang, Klaas van Zalinge, Chuan Wang, Dongling Pan
-
Publication number: 20150180523Abstract: A device includes, a reconfigurable baseband filter configured to receive a communication signal having a first carrier and a second carrier, the first carrier and the second carrier having non-contiguous respective frequencies, the reconfigurable baseband filter having a first filter portion and a second filter portion, the first filter portion and the second filter portion each comprising respective first and second amplification stages, and a plurality of switches associated with the first filter portion and the second filter portion, the plurality of switches for configuring the reconfigurable baseband filter into a plurality of sub-filters, each configured to generate at least one of a low pass filter output and a bandpass filter output.Type: ApplicationFiled: December 20, 2013Publication date: June 25, 2015Applicant: QUALCOMM IncorporatedInventors: Aleksandar Miodrag Tasic, Klaas van Zalinge, Gurkanwal Singh Sahota, Jeremy Darren Dunworth
-
Publication number: 20140134960Abstract: Omni-band amplifiers supporting multiple band groups are disclosed. In an exemplary design, an apparatus (e.g., a wireless device, an integrated circuit, etc.) includes at least one gain transistor and a plurality of cascode transistors for a plurality of band groups. Each band group covers a plurality of bands. The gain transistor(s) receive an input radio frequency (RF) signal. The cascode transistors are coupled to the gain transistor(s) and provide an output RF signal for one of the plurality of band groups. In an exemplary design, the gain transistor(s) include a plurality of gain transistors for the plurality of band groups. One gain transistor and one cascode transistor are enabled to amplify the input RF signal and provide the output RF signal for the selected band group. The gain transistors may be coupled to different taps of a single source degeneration inductor or to different source degeneration inductors.Type: ApplicationFiled: November 14, 2012Publication date: May 15, 2014Applicant: QUALCOMM INCORPORATEDInventors: Aleksandar Miodrag Tasic, Anosh Bomi Davierwalla, Chiewcharn Narathong, Klaas van Zalinge
-
Publication number: 20130316670Abstract: Multiple-input multiple-output (MIMO) low noise amplifiers (LNAs) supporting carrier aggregation are disclosed. In an exemplary design, an apparatus (e.g., a wireless device, an integrated circuit, etc.) includes a MIMO LNA having a plurality of gain circuits, a drive circuit, and a plurality of load circuits. The gain circuits receive at least one input radio frequency (RF) signal and provide at least one amplified RF signal. Each gain circuit receives and amplifies one input RF signal and provides one amplified RF signal when the gain circuit is enabled. The at least one input RF signal include transmissions sent on multiple carriers at different frequencies to the wireless device. The drive circuit receives the at least one amplified RF signal and provides at least one drive RF signal. The load circuits receive the at least one drive RF signal and provide at least one output RF signal.Type: ApplicationFiled: August 24, 2012Publication date: November 28, 2013Applicant: QUALCOMM INCORPORATEDInventors: Aleksandar Miodrag Tasic, Anosh Bomi Davierwalla, Berke Cetinoneri, Jusung Kim, Chiewcharn Narathong, Klaas van Zalinge, Gurkanwal Singh Sahota, James Ian Jaffee