专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2019092403A1 MULTI-BAND RADIO RECEIVERS 审中-公开
公开(公告)号：WO2019092403A1
公开(公告)日：2019-05-16
申请号：PCT/GB2018/053181
申请日：2018-11-01
申请人： NORDIC SEMICONDUCTOR ASA , SAMUELS, Adrian James
发明人： JUSSILA, Jarkko , SIVONEN, Pete
IPC分类号： H04B1/00 , H04B1/10
CPC分类号： H04B1/005 , H04B1/1036 , H04B2001/1063
摘要： A radio frequency receiver is provided that comprises an antenna (2), an RF amplifier (36), at least one down conversion mixer stage (16, 18) and a variable notch filter. The at least one down-conversion mixer stage (16, 18) is arranged to act on signals provided by the RF amplifier (36) and is tuned to a tuned frequency ft which is selected from a plurality of possible tuned frequencies corresponding to a frequency of the RF signal to be received at the antenna (2). The variable notch filter is arranged to act on signals passing from the antenna (2) to the RF amplifier (36) and has a resonance frequency fr which is selected from a plurality of possible resonance frequencies such that fr = ft /n where n is a whole number between 2 and 10. The variable notch filter thereby acts to attenuate signals from the antenna (2) at said resonance frequency.

2. 发明申请

WO2022161911A1 MULTIBAND RADIO RECEIVERS 审中-公开
公开(公告)号：WO2022161911A1
公开(公告)日：2022-08-04
申请号：PCT/EP2022/051483
申请日：2022-01-24
申请人： NORDIC SEMICONDUCTOR ASA
发明人： SIVONEN, Pete , JUSSILA, Jarkko
IPC分类号： H04B1/10 , H03D7/16 , H04B1/28
摘要： - 40 - Abstract A configurable radio frequency receiver (74) is provided. The receiver has at least one low noise amplifier (86a, 86b); an oscillator arrangement for producing a plurality of signals having a first number or a second number of separate phases; and multiple mixer modules (83, 85, 87, 89) having inputs connected to an output of 5 the low noise amplifier. The receiver has a configurable resistor network (76). The receiver is configured such that it can operate in a first mode (78) with said plurality of signals having said first number of phases or a second mode (80) 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 10 the second mode in a second configuration. The mixer modules are employed during the operation of the first mode and the second mode. [Figure 5]

3. 发明申请

WO2022194689A1 CONFIGURABLE FILTER FOR SUBHARMONIC BLOCKERS IN MULTIBAND WIRELESS RECEIVERS 审中-公开
公开(公告)号：WO2022194689A1
公开(公告)日：2022-09-22
申请号：PCT/EP2022/056301
申请日：2022-03-11
申请人： NORDIC SEMICONDUCTOR ASA
发明人： SIVONEN, Pete , JUSSILA, Jarkko
IPC分类号： H03H7/01 , H03H7/38 , H04B1/18 , H03F1/56
摘要： 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 (L11003) 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 matcing and low pass filtering above the operating frequency bands.

4. 发明申请

WO2018138519A1 RADIO RECEIVERS 审中-公开
公开(公告)号：WO2018138519A1
公开(公告)日：2018-08-02
申请号：PCT/GB2018/050237
申请日：2018-01-26
申请人： NORDIC SEMICONDUCTOR ASA , SAMUELS, Adrian James
发明人： SIVONEN, Pete
IPC分类号： H04B1/30 , H03D7/14 , H04B1/00
摘要： A radio receiver device is arranged to receive an input voltage signal (V IN ) at an input frequency and comprises: a first amplification circuit portion (110); a second amplification circuit portion (134); a current buffer circuit portion (140); and a down- mixer circuit portion (M 1 -M 8 ). The first amplification circuit portion is arranged to amplify the input voltage signal to generate an amplified current signal which is input to the current buffer circuit portion. The current buffer circuit portion has an input impedance (Z IN,B ) and an output impedance (Z OUT,B ), wherein the output impedance is greater than the input impedance and is arranged to generate a buffered current signal. The down-mixer circuit portion is arranged to receive the buffered current signal and generate a down-converted current signal at a baseband frequency. The second amplification circuit portion is arranged to amplify the down-converted current signal to produce an output voltage signal (V OUTI , V OUTQ ).

5. 发明申请

WO2017103558A1 RADIO FREQUENCY RECEIVER 审中-公开
标题翻译：无线电频率接收器
公开(公告)号：WO2017103558A1
公开(公告)日：2017-06-22
申请号：PCT/GB2016/053381
申请日：2016-10-31
申请人： NORDIC SEMICONDUCTOR ASA , SAMUELS, Adrian James
发明人： SIVONEN, Pete
IPC分类号： H03F3/195 , H03F1/56 , H03F3/45 , H03F3/72
CPC分类号： H03F3/195 , H03F1/56 , H03F3/45941 , H03F3/72 , H03F2200/144 , H03F2200/222 , H03F2200/294 , H03F2200/372 , H03F2203/45231 , H03F2203/45576
摘要： A radio frequency receiver device comprises: a receiver input arranged to receive signals having one or more frequency components within a frequency spectrum; a filter having a filter output impedance; and an amplifier comprising: an amplifier input (134a, 134b) connected to the filter output; an amplifier output 72a, 72b); at least one radio frequency input transistor (144a, 144b); and a feedback circuit including at least one feedback resistor (146a, 146b). The device is arranged to be selectably operable in: a first mode wherein the amplifier has first feedback resistance and transconductance values respectively such that the amplifier input impedance and the filter output impedance are substantially the same; and a second mode having second feedback resistance and transconductance values such that upon connection of a predetermined external impedance matching circuit (160) between the filter and the amplifier, the amplifier input impedance and the filter output impedance are substantially the same.
摘要翻译：一种射频接收器设备，包括：接收器输入，其被布置为接收具有频谱内的一个或多个频率分量的信号; 具有滤波器输出阻抗的滤波器; 以及放大器，包括：连接到所述滤波器输出端的放大器输入端（134a，134b）放大器输出72a，72b）; 至少一个射频输入晶体管（144a，144b）; 以及包括至少一个反馈电阻器（146a，146b）的反馈电路。该器件被设置为可选择地可操作于：第一模式，其中放大器分别具有第一反馈电阻和跨导值，使得放大器输入阻抗和滤波器输出阻抗基本相同; 以及具有第二反馈电阻和跨导值的第二模式，使得在连接滤波器和放大器之间的预定外部阻抗匹配电路（160）时，放大器输入阻抗和滤波器输出阻抗基本相同。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式