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    Front end module with input match configurability
    52.
    发明授权
    Front end module with input match configurability 有权

    公开(公告)号：US10177715B1

    公开(公告)日：2019-01-08

    申请号：US15728314

    申请日：2017-10-09

    Applicant: pSemi Corporation

    Inventor： Emre Ayranci ,  Miles Sanner

    IPC: H03F1/07 ,  H03F1/26 ,  H03F3/19 ,  H03F1/56 ,  H04B1/16 ,  H04B1/40

    Abstract: A front end module (FEM) and associated method for receiving signals in a front end module are disclosed. Some embodiments of the FEM have three inputs. The FEM can process the input signals in one of three bypass modes. In bypass modes, switchable tank circuits provide a high impedance to isolate active components from the bypass path. This improves the input return loss in the passive bypass mode and thus improves the performance of the passive bypass mode by allowing the use of LNAs without an input switch. In the active gain mode, one of a plurality of signals are amplified by one of an equal number of amplifiers coupled to the FEM output. Accordingly, the FEM can output signals applied to any one of the FEM inputs in bypass mode, or an amplified version of one of the input signals. In some embodiments, the FEM has only one input and one LNA. In such embodiments, an output selector switch selects between a bypass path and a gain path.

    Drain sharing split LNA
    55.
    发明授权
    Drain sharing split LNA 有权

    公开(公告)号：US12212291B2

    公开(公告)日：2025-01-28

    申请号：US18352136

    申请日：2023-07-13

    Applicant: pSemi Corporation

    Inventor： Miles Sanner ,  Emre Ayranci

    IPC: H03F3/195 ,  H03F1/02 ,  H03F1/22 ,  H03F1/56 ,  H03F3/16 ,  H03F3/193 ,  H03F3/21 ,  H03F3/72 ,  H04B1/16

    Abstract: A receiver front end having low noise amplifiers (LNAs) is disclosed herein. A cascode having a “common source” configured input FET and a “common gate” configured output FET can be turned on or off using the gate of the output FET. A first switch is provided that allows a connection to be either established or broken between the source terminal of the input FET of each LNA. A drain switch is provided between the drain terminals of input FETs to place the input FETs in parallel. This increases the gm of the input stage of the amplifier, thus improving the noise figure of the amplifier.

    Configurable wideband split LNA
    56.
    发明授权
    Configurable wideband split LNA 有权

    公开(公告)号：US12176936B2

    公开(公告)日：2024-12-24

    申请号：US18366389

    申请日：2023-08-07

    Applicant: pSemi Corporation

    Inventor： Emre Ayranci ,  Miles Sanner ,  Phanindra Yerramilli

    IPC: H04B1/18 ,  H03F1/26 ,  H03F3/195 ,  H04B1/00 ,  H04B1/04

    Abstract: Methods and devices addressing design of wideband LNAs with gain modes are disclosed. The disclosed teachings can be used to reconfigure RF receiver front-end to operate in various applications imposing stringent and conflicting requirements. Wideband and narrowband input and output matching with gain modes using a combination of the same hardware and a switching network are also disclosed. The described methods and devices also address carrier aggregation requirements and provide solutions that can be used both in single-mode and split-mode operations.

    Adaptive Tuning Networks with Direct Mapped Multiple Channel Filter Tuning
    58.
    发明公开
    Adaptive Tuning Networks with Direct Mapped Multiple Channel Filter Tuning 审中-公开

    公开(公告)号：US20240128945A1

    公开(公告)日：2024-04-18

    申请号：US18492357

    申请日：2023-10-23

    Applicant: pSemi Corporation

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

    IPC: H03H7/01 ,  H04B1/00 ,  H04W72/0453

    CPC classification number: H03H7/0161 ,  H04B1/0053 ,  H04B1/006 ,  H04B1/0067 ,  H04W72/0453 ,  H04W28/065

    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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