Qualcomm Incorporated

Other

Vladimir Aparin

Namsoo Kim

Jeffrey Alexander Levin

Jeremy Darren Dunworth

Charles James Persico

Yue Wu

Mohammad Ali Tassoudji

Joseph Patrick Burke

Ravindra Vaman Shenoy

Jason Frank Hunzinger

Haim Mendel Weissman

Peter J Shah

Seong Heon Jeong

Jon Lasiter

Donald William Kidwell, Jr

Kenneth Charles Barnett

Xiaoyin He

Cong Nguyen

Peter David Heidmann

Hajir Hedayati

Yi Tang

Yong Ju Lee

Lior Raviv

Edward Wai Yeung Liu

Mario Francisco Velez

Gurkanwal Singh Sahota

Roberto Rimini

Aristotele Hadjichristos

Bo Sun

Yang Du

Robert P Gilmore

Chin-Kwan Kim

Gary John Ballantyne

Venkat Rangan

Frederic Bossu

Steven C Ciccarelli

Lennart Karl Mathe

Prasad S Gudem

Yu-Chin Ou

Alireza Mohammadian

Marco Cassia

Prashanth Akula

Junxiong Deng

Thomas Domenick Marra

Bruce A Judson

Joung Won Park

Nicholas Michael Carbone

Wing Fat Andy Lau

Subramaniam Venkatraman

Ralph E Kaufman

Kevin H Wang

Bon-Hyun Ku

Aidin Bassam

Hyunchul Park

Charles J c/o Qualcomm Incorporated Persico

Certain aspects of the present disclosure are directed to a radio frequency digital-to-analog converter (RFDAC). The RFDAC generally includes a plurality of digital-to-analog (DAC) unit cells. At least one DAC unit cell is capable of being configured in an active state or in a sleep state. For the at least one DAC unit cell, an output impedance of the DAC unit cell in the active state is equal to an output impedance of the DAC unit cell in the sleep state.

Radio frequency transmitter with dynamic impedance matching for high linearity

An apparatus is disclosed for transmission setting selection. In an example aspect, an apparatus includes a wireless interface device with a communication processor and a radio-frequency front-end. The communication processor is configured to provide a signal. The radio-frequency front-end is coupled to the communication processor and configured to accept the signal. The radio-frequency front-end includes an amplifier configured to amplify the signal based on one or more amplifier settings. The wireless interface device is configured to adjust the one or more amplifier settings responsive to an output power being changed with a gain being unchanged.

Transmission setting selection

Radio frequency digital-to-analog converter (RFDAC) with dynamic impedance matching for high linearity

An antenna system includes: a ground conductor; a substrate; a pair of planar dipole conductors disposed such that at least a portion of the substrate is disposed between the ground conductor and the pair of dipole conductors; a pair of energy couplers each electrically connected to a respective one of the pair of dipole conductors; and a pair of isolated lobes including electrically-conductive material. The pair of isolated lobes are electrically separate from the pair of dipole conductors and the pair of energy couplers, and disposed between the pair of dipole conductors and the ground conductor.

Broadband antenna system

Methods, systems, and devices are described for transceiver architecture for millimeter wave wireless communications. A device may include two transceiver chip modules configured to communicate in different frequency ranges. The first transceiver chip module may include a baseband sub-module, a first radio frequency front end (RFFE) component and associated antenna array. The second transceiver chip module may include a second RFFE component and associated antenna array. The second transceiver chip module may be separate from the first transceiver chip module. The second transceiver chip module may be electrically coupled to the baseband sub-module of the first transceiver chip module.

Transceiver configuration for millimeter wave wireless communications

The present disclosure provides an amplifier circuit that includes one or more amplifier stages, each of the one or more amplifier stages including a complementary transistor configuration. The complementary transistor configuration includes an NMOS transistor and a PMOS transistor. The NMOS transistor is electrically coupled in parallel to the PMOS transistor. The amplifier circuit further includes an output amplifier stage electrically coupled to an output of the one or more amplifier stages, the output amplifier stage including a non-complementary transistor configuration including one or more NMOS transistors or PMOS transistors.

Power amplifier circuit

In conventional packaging strategies for mm wave applications, the size of the package is dictated by the antenna size, which is often much larger than the RFIC (radio frequency integrated circuit). Also, the operations are often limited to a single frequency which limits their utility. In addition, multiple addition build-up layers are required to provide the necessary separation between the antennas and ground layers. To address these issues, it is proposed to provide a device that includes an antenna package, an RFIC package, and an interconnect assembly between the antenna and the RFIC packages. The interconnect assembly may comprise a plurality of interconnects with high aspect ratios and configured to connect one or more antennas of the antenna package with an RFIC of the RFIC package. An air gap may be formed in between the antenna package and the RFIC package for performance improvement.

High aspect ratio interconnects in air gap of antenna package

Techniques for increasing the lifespan of a nanopore DNA sensing device are disclosed. A related DNA sensing device may be formed by a process comprising forming a first electrode, forming a second electrode, disposing the first electrode and second electrode within an insulator, and disposing a lipid bilayer having a nanopore between the first electrode and second electrode. The forming of the second electrode may comprise forming a silver (Ag) layer, pressing a mold into the Ag layer to form a pattern in the Ag layer, removing the mold from the Ag layer, and exposing the Ag layer to an electrolyte.

Method and apparatus for increasing a lifespan of nanopore-based DNA sensing devices

Certain aspects of the present disclosure provide methods and apparatus for sensing. One example apparatus for sensing includes a sensor configured to supply a current indicative of a parameter and a bipolar transistor having a base coupled to the sensor to receive the current, the bipolar transistor being configured to generate an amplified current based on the current. The apparatus may also include a measurement circuit coupled to the bipolar transistor and configured receive the amplified current.

Current sensors using bipolar transistors

Techniques for increasing the lifespan of a nanopore DNA sensing device are disclosed. A related method may include forming a first electrode, forming a second electrode, disposing the first electrode and second electrode within an insulator, and disposing a lipid bilayer having a nanopore between the first electrode and second electrode. The forming of the second electrode may comprise forming a silver (Ag) layer, pressing a mold into the Ag layer to form a pattern in the Ag layer, removing the mold from the Ag layer, and exposing the Ag layer to an electrolyte.

An ionic current sensor array includes a master bias generator and a plurality of sensing cells. The master bias generator is configured to generate a bias voltage. Each sensing cell includes an ionic current sensor, an integrating capacitor, a sense transistor coupled between the integrating capacitor and the ionic current sensor, and an amplifier coupled to provide a reference voltage to bias the ionic current sensor. The amplifier includes a first transistor and a second transistor. The first transistor is coupled to receive the bias voltage, and the second transistor is coupled to the first transistor to provide the reference voltage to the ionic current sensor. The second transistor is also coupled between a source of the sense transistor and the gate of the sense transistor.

Biasing of an ionic current sensor

Techniques for simultaneously receiving multiple transmitted signals with independent gain control are disclosed. In an exemplary design, an apparatus (e.g., a wireless device, an integrated circuit, etc.) includes a low noise amplifier (LNA) and first and second receive circuits. The LNA amplifies a receiver input signal and provides (i) a first amplified signal for a first set of at least one transmitted signal being received and (ii) a second amplified signal for a second set of at least one transmitted signal being received. The first receive circuit scales the first amplified signal based on a first adjustable gain selected for the first set of transmitted signal(s). The second receive circuit scales the second amplified signal based on a second adjustable gain selected for the second set of transmitted signal(s). The first and second adjustable gains may be independently selected, e.g., based on the received powers of the transmitted signals.

Independent gain control for multiple receive circuits concurrently processing different transmitted signals

High-speed high-power semiconductor devices are disclosed. In an exemplary design, a high-speed high-power semiconductor device includes a source, a drain to provide an output signal, and an active gate to receive an input signal. The semiconductor device further includes at least one field gate located between the active gate and the drain, at least one shallow trench isolation (STI) strip formed transverse to the at least one field gate, and at least one drain active strip formed parallel to, and alternating with, the at least one STI strip. The semiconductor device may be modeled by a combination of an active FET and a MOS varactor. The active gate controls the active FET, and the at least one field gate controls the MOS varactor. The semiconductor device has a low on resistance and can handle a high voltage.

High-speed high-power semiconductor devices

A method, an apparatus, and system for filtering a signal in a carrier aggregation system are provided. The apparatus processes carriers via at least two respective paths. Each path receives, via a transconducting module, an input signal and generates a current signal based on the input signal, shifts, via a mixing module, a frequency of the current signal by mixing the current signal with a local oscillating signal corresponding to a respective path, and generates, via an amplifying module, an output voltage signal based on the frequency-shifted signal and a response of the respective path. The apparatus attenuates, via a filtering module, a jamming signal in the input signal to produce responses for the at least two paths, respectively. A response for the respective path has a maximum input impedance at a frequency of the local oscillating signal corresponding to the respective path.

Blocker filtering for carrier aggregation receiver

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San Diego, CA, United States of America

Vladimir Aparin