公开(公告)号：US20240120959A1

公开(公告)日：2024-04-11

申请号：US18273257

申请日：2022-01-24

Applicant: Nordic Semiconductor ASA

Inventor： Pete SIVONEN ,  Jarkko JUSSILA

IPC: H04B1/28 ,  H03D7/14 ,  H03D7/16

CPC classification number: H04B1/28 ,  H03D7/1466 ,  H03D7/165

Abstract: A configurable radio frequency receiver is provided. The receiver has at least one low noise amplifier; an oscillator arrangement for producing a plurality of signals having a first number or a second number of separate phases; and multiple mixer modules having inputs connected to an output of the low noise amplifier. The receiver has a configurable resistor network. The receiver is configured such that it can operate in a first mode with said plurality of signals having said first number of phases or a second mode with said plurality of signals having said second number of phases. The configurable resistor network enables the receiver to operate in the first mode in a first configuration, and the second mode in a second configuration. The mixer modules are employed during the operation of the first mode and the second mode.

公开(公告)号：US20240396502A1

公开(公告)日：2024-11-28

申请号：US18696235

申请日：2022-09-28

Applicant: NORDIC SEMICONDUCTOR ASA

Inventor： Jarkko JUSSILA ,  Pete SIVONEN

IPC: H03F1/22 ,  H03F1/26 ,  H03F3/26 ,  H03F3/45

Abstract: According to an aspect, there is provided a single-ended-to-differential complementary metal-oxide-semiconductor, SE2D CMOS, transconductance amplifier for a radio receiver. The SE2D CMOS transconductance amplifier comprises an input for receiving a radio frequency signal, first common-source n-type metal-oxide-semiconductor. CS NMOS (M1), and common-source p-type metal-oxide-semiconductor, CS PMOS, transistors (M5), second CS NMOS (M2) and CS PMOS (M6) transistors, a cross-coupled cascode stage for adjusting balance of the radio frequency currents outputted by the first (M1) and second (M2) CS NMOS transistors and a differential output. The first (M1) and second (M2) CS NMOS transistors have substantially equal transconductances and the first (M5) and second (M6) CS PMOS transistors have substantially equal transconductances. The first and second cross-coupled cascode NMOS transistors have substantially equal transconductances.

公开(公告)号：US20240313820A1

公开(公告)日：2024-09-19

申请号：US18550364

申请日：2022-03-11

Applicant: NORDIC SEMICONDUCTOR ASA

Inventor： Pete SIVONEN ,  Jarkko JUSSILA

IPC: H04B1/525 ,  H03F1/56 ,  H03H7/01 ,  H04B1/00 ,  H04B1/18

CPC classification number: H04B1/525 ,  H03F1/565 ,  H03H7/0153 ,  H04B1/0057 ,  H04B1/18

Abstract: According to an aspect, there is provided a tunable radio frequency filter (209) for preselection in a multiband radio receiver or transceiver with a low-noise amplifier with a single-ended input. The tunable radio frequency filter comprises a first capacitor (C1, 1001) having a first terminal for connecting to at least one antenna of the multiband radio receiver or transceiver and a second terminal; and a series resonant circuit, connected between the second terminal of the first capacitor and the ground. The series resonant circuit comprises a first inductor (L1 1003) and a tunable capacitor (Ct, 1004) connected in series with first inductor and having a plurality of tuning values corresponding to operating frequency bands of the multiband radio receiver or transceiver. The tunable capacitor is implemented in an integrated circuit. The series resonant circuit is configured to be resonant at a plurality of first subharmonics of frequencies of the operating frequency bands. Optionally the filter comprises a second capacitor (C2, 1002) and a second inductor (L2, 1010) in series between the resonant circuit to ground and the input of the LNA. The second inductor adds to impedance matching and low pass filtering above the operating frequency bands.