Low noise amplifier transistors with decreased noise figure and leakage in silicon-on-insulator technology

    公开(公告)号:US11552196B2

    公开(公告)日:2023-01-10

    申请号:US17187993

    申请日:2021-03-01

    摘要: A metal oxide semiconductor field effect transistor preferably fabricated with a silicon-on-insulator process has a first semiconductor region and a second semiconductor region in a spaced relationship thereto A body structure is defined by a channel segment between the first semiconductor region and the second semiconductor region, and a first extension segment structurally contiguous with the channel segment. A shallow trench isolation structure surrounds the first semiconductor region, the second semiconductor region, and the body structure, with a first extension interface being defined between the shallow trench isolation structure and the first extension segment of the body structure to reduce leakage current flowing from the second semiconductor region to the first semiconductor region through a parasitic path of the body structure.

    Coupled Resonator On-Die Filters for WiFi Applications

    公开(公告)号:US20200076393A1

    公开(公告)日:2020-03-05

    申请号:US16679625

    申请日:2019-11-11

    IPC分类号: H03H7/09 H03H7/01

    摘要: A radio frequency (RF) filter circuit for rejecting one or more spurious components of an input signal has a first resonator circuit including a first capacitor and a first coupled inductor pair of a first inductor and a second inductor, and a second resonator circuit with a second capacitor and a second coupled inductor pair of a third inductor and a fourth inductor. First and second resonator coupling capacitors are connected to the first resonator circuit and the second resonator circuit. A first port and a second port are connected to the first resonator circuit and the second resonator, with the filtered signal of the input signal passed through both the first resonator circuit and the second resonator circuit being output.

    RF power amplifiers with diode linearizer

    公开(公告)号:US10574190B2

    公开(公告)日:2020-02-25

    申请号:US15148167

    申请日:2016-05-06

    摘要: A radio frequency (RF) power amplifier circuit with a diode linearizer circuit. The power amplifier circuit has an input and an output, as well as a power amplifier transistor with a first terminal connected to the input, a second terminal connected to the output, and a third terminal. The linearizer circuit is connected to the third terminal and to ground, and has a non-linear current-voltage curve as well as a non-linear capacitance. The linearizer circuit reduces inter-modulation products in a current through the power amplifier transistor from the second terminal to the third terminal that corresponds to an input signal applied to the input.

    Ultra-High Coupling Factor Monolithic Transformers for Integrated Differential Radio Frequency Amplifiers in System-On-Chip Devices

    公开(公告)号:US20190385781A1

    公开(公告)日:2019-12-19

    申请号:US16554794

    申请日:2019-08-29

    IPC分类号: H01F27/28 H01F19/04

    摘要: An ultra-high coupling factor transformer has a plurality of conductive layers, a primary winding inductor, and a secondary winding inductor. The primary winding inductor is defined by a plurality of turns and disposed on a first one of the plurality of conductive layers and extends to a second one of the plurality of conductive layers. The secondary winding inductor is defined by a plurality of turns and disposed on the first one of the plurality of conductive layers and extends to the second one of the plurality of conductive layers. The primary winding is vertically and horizontally cross coupled with the secondary winding inductor, and defines a mutual coupling inductance from surrounding directions.

    Zero Insertion Loss Directional Coupler for Wireless Transceivers with Integrated Power Amplifiers

    公开(公告)号:US20190312328A1

    公开(公告)日:2019-10-10

    申请号:US16432416

    申请日:2019-06-05

    IPC分类号: H01P5/18

    摘要: A zero insertion loss directional coupler includes an input port, an antenna port, an isolation port, and a detect port. The coupler has a first signal trace, a second signal trace, and an inductive winding. The first signal trace is on one of two layers and is connected to the input port and the antenna port, while the inductive winding is on another one of the two layers. A first terminal of the inductive winding is connected to the isolation port. A first terminal of the second signal trace is connected to the detect port and a second terminal of the second signal trace is connected to a second terminal of the inductive winding.

    Wide dynamic range broadband current mode linear detector circuits for high power radio frequency power amplifier

    公开(公告)号:US10365308B2

    公开(公告)日:2019-07-30

    申请号:US15370955

    申请日:2016-12-06

    IPC分类号: G01R21/00 G01R19/00 G01R31/28

    摘要: A power detector with a detection signal input connectable to a source of a radio frequency signal and a detected power level output has a differential amplifier detector circuit with an input connected to the detection signal input and an output corresponding to the detected power level output. A feedback network is connected to the input and the output of the differential amplifier detector circuit. A mirror circuit is connected to the differential amplifier detector circuit. A root mean square current corresponding to a power level of the radio frequency signal from the source is mirrored and integrated, with a direct current voltage level being generated therefrom and output to the detected power level output.

    Coupled-resonator on-die filters for WiFi applications

    公开(公告)号:US09853620B2

    公开(公告)日:2017-12-26

    申请号:US14268199

    申请日:2014-05-02

    IPC分类号: H03H7/09 H03H7/01

    摘要: A radio frequency (RF) filter circuit for rejecting one or more spurious components of an input signal has a first resonator circuit including a first capacitor and a first coupled inductor pair of a first inductor and a second inductor, and a second resonator circuit with a second capacitor and a second coupled inductor pair of a third inductor and a fourth inductor. First and second resonator coupling capacitors are connected to the first resonator circuit and the second resonator circuit. A first port and a second port are connected to the first resonator circuit and the second resonator, with the filtered signal of the input signal passed through both the first resonator circuit and the second resonator circuit being output.