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    Dual voltage switched branch LNA architecture
    2.
    发明授权
    Dual voltage switched branch LNA architecture 有权

    公开(公告)号：US12101065B2

    公开(公告)日：2024-09-24

    申请号：US18492544

    申请日：2023-10-23

    Applicant: pSemi Corporation

    Inventor： Miles Sanner ,  Emre Ayranci ,  Parvez Daruwalla

    IPC: H03F1/22 ,  H03F3/193 ,  H03F3/21

    CPC classification number: H03F1/223 ,  H03F3/193 ,  H03F3/21 ,  H03F2200/294 ,  H03F2203/7236

    Abstract: Methods and circuital arrangements for turning OFF branches of a multi-branch cascode amplifier are presented. First and second switching arrangements coupled to a branch allow turning OFF the branch while protecting transistors of the branch from a supply voltage that may be greater than a tolerable voltage of the transistors. The first switching arrangement includes a transistor-based switch that is in series connection with the transistors of the branch. The first switching arrangement drops the supply voltage during the OFF state of the branch and provides a conduction path for a current through the branch during the ON state of the branch. A resistor and a shunting switch are coupled to a gate of the transistor-based switch to reduce parasitic coupling effects of the transistor-based switch upon an RF signal coupled to the branch during the ON state and OFF state of the branch.

    Tunable Hybrid Wideband LNA Architecture
    5.
    发明公开
    Tunable Hybrid Wideband LNA Architecture 审中-公开

    公开(公告)号：US20240007059A1

    公开(公告)日：2024-01-04

    申请号：US17855418

    申请日：2022-06-30

    Applicant: pSemi Corporation

    Inventor： Emre Ayranci ,  Jubaid Qayyum ,  Phanindra Yerramilli ,  Miles Sanner

    IPC: H03F1/56 ,  H03F3/195

    CPC classification number: H03F1/565 ,  H03F3/195 ,  H03F2200/451 ,  H03F2200/294 ,  H03F2200/222 ,  H03F2200/387

    Abstract: Circuits and methods for an LNA that enable selection of a first mode providing high gain with wide output impedance matching, and a second mode providing wideband output impedance matching with improved NF and linearity at moderate gain. Some embodiments allow multiple intermediate modes to enable selection of gain versus linearity and NF. One embodiment includes a matching network having an input terminal configured to be coupled to an amplified-signal terminal of an amplification core, and an output terminal, the matching network including a first inductor coupled between the input terminal and a first node; a second inductor coupled to the first node; a boosted amplification branch coupled between the input terminal and the output terminal; and a non-amplification branch coupled between the first node and the output terminal; wherein the boosted amplification branch is enabled in a first mode, and the non-amplification branch is enabled in a second mode.

    Dual voltage switched branch LNA architecture
    6.
    发明授权
    Dual voltage switched branch LNA architecture 有权

    公开(公告)号：US11831280B2

    公开(公告)日：2023-11-28

    申请号：US18168346

    申请日：2023-02-13

    Applicant: pSemi Corporation

    Inventor： Miles Sanner ,  Emre Ayranci ,  Parvez Daruwalla

    IPC: H03F1/22 ,  H03F3/193 ,  H03F3/21

    CPC classification number: H03F1/223 ,  H03F3/193 ,  H03F3/21 ,  H03F2200/294 ,  H03F2203/7236

    Abstract: Methods and circuital arrangements for turning OFF branches of a multi-branch cascode amplifier are presented. First and second switching arrangements coupled to a branch allow turning OFF the branch while protecting transistors of the branch from a supply voltage that may be greater than a tolerable voltage of the transistors. The first switching arrangement includes a transistor-based switch that is in series connection with the transistors of the branch. The first switching arrangement drops the supply voltage during the OFF state of the branch and provides a conduction path for a current through the branch during the ON state of the branch. A resistor and a shunting switch are coupled to a gate of the transistor-based switch to reduce parasitic coupling effects of the transistor-based switch upon an RF signal coupled to the branch during the ON state and OFF state of the branch.

    Programmable optimized band switching LNA
    8.
    发明授权
    Programmable optimized band switching LNA 有权

    公开(公告)号：US11611319B2

    公开(公告)日：2023-03-21

    申请号：US16953141

    申请日：2020-11-19

    Applicant: pSemi Corporation

    Inventor： Emre Ayranci ,  Miles Sanner

    IPC: H03F1/22 ,  H03F3/195 ,  H03F1/02 ,  H03H11/28 ,  H04B1/16 ,  H03H7/38 ,  H03F1/56 ,  H03F3/193 ,  H03F3/72 ,  H04B1/00

    Abstract: A front end module (FEM) integrated circuit (IC) architecture that uses the same LNA in each of several frequency bands extending over a wide frequency range. In some embodiments, switched impedance circuits distributed throughout the front end circuit allow selection of the frequency response and impedances that are optimized for particular performance parameters targeted for a desired device characteristic. Such switched impedance circuits tune the output and input impedance match and adjust the gain of the LNA for specific operating frequencies and gain targets. In addition, adjustments to the bias of the LNA can be used to optimize performance trade-offs between the total direct current (DC) power dissipated versus radio frequency (RF) performance. By selecting appropriate impedances throughout the circuit using switched impedance circuits, the LNA can be selectively tuned to operate optimally at a selected bias for operation within selected frequency bands.

    Adaptive tuning networks with direct mapped multiple channel filter tuning
    9.
    发明授权
    Adaptive tuning networks with direct mapped multiple channel filter tuning 有权

    公开(公告)号：US11251765B2

    公开(公告)日：2022-02-15

    申请号：US16852275

    申请日：2020-04-17

    Applicant: pSemi Corporation

    Inventor： Emre Ayranci ,  Miles Sanner ,  Ke Li ,  James Francis McElwee ,  Tero Tapio Ranta ,  Kevin Roberts ,  Chih-Chieh Cheng

    IPC: H04B1/04 ,  H04B1/40 ,  H01B1/00 ,  H04W88/06 ,  H03H7/38 ,  H03H7/01 ,  H04B1/00 ,  H04W72/04 ,  H04W28/06 ,  H04L5/00

    Abstract: A flexible multi-path RF adaptive tuning network switch architecture that counteracts impedance mismatch conditions arising from various combinations of coupled RF band filters, particularly in a Carrier Aggregation-based (CA) radio system. In one version, a digitally-controlled tunable matching network is coupled to a multi-path RF switch in order to provide adaptive impedance matching for various combinations of RF band filters. Optionally, some or all RF band filters include an associated digitally-controlled filter pre-match network to further improve impedance matching. In a second version, some or all RF band filters coupled to a multi-path RF switch include a digitally-controlled phase matching network to provide necessary per-band impedance matching. Optionally, a digitally-controlled tunable matching network may be included on the common port of the multi-path RF switch to provide additional impedance matching capability. In a third version, CA direct mapped adaptive tuning networks include filter tuning blocks for selected lower frequency bands.

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