公开(公告)号：US20240097335A1

公开(公告)日：2024-03-21

申请号：US18525764

申请日：2023-11-30

Applicant: Silicon Laboratories Inc.

Inventor： Tuomas Hänninen ,  Pasi Rahikkala ,  Attila Zolomy

IPC: H01Q7/00 ,  H01Q1/38 ,  H03H7/38

CPC classification number: H01Q7/00 ,  H01Q1/38 ,  H03H7/38

Abstract: An apparatus includes a module. The module includes an antenna structure. The antenna structure includes a printed monopole antenna. The antenna structure further includes first and second inductive-capacitive (LC) resonant networks that are coupled to the printed monopole antenna. The antenna structure further includes a double slotted loop coupled to the first and second LC resonant networks.

公开(公告)号：US11757190B2

公开(公告)日：2023-09-12

申请号：US17705257

申请日：2022-03-25

Applicant: Silicon Laboratories Inc.

Inventor： Thomas E. Voor ,  Attila Zolomy ,  Pasi Rahikkala

IPC: H01Q7/00 ,  H03H7/38 ,  H01Q1/22

CPC classification number: H01Q7/005 ,  H01Q1/2291 ,  H03H7/38

Abstract: An apparatus includes a module, which includes an impedance matching circuit. The apparatus further includes a capacitor that is external to the module, and is coupled to the impedance matching circuit. The apparatus further includes a loop antenna to transmit or receive the RF signals. The loop antenna is coupled to the capacitor.

公开(公告)号：US11894622B2

公开(公告)日：2024-02-06

申请号：US17491195

申请日：2021-09-30

Applicant: Silicon Laboratories Inc.

Inventor： Tuomas Hänninen ,  Pasi Rahikkala ,  Attila Zolomy

IPC: H01Q7/00 ,  H03H7/38 ,  H01Q1/38

CPC classification number: H01Q7/00 ,  H01Q1/38 ,  H03H7/38

Abstract: An apparatus includes a module. The module includes an antenna structure. The antenna structure includes a printed monopole antenna. The antenna structure further includes first and second inductive-capacitive (LC) resonant networks that are coupled to the printed monopole antenna. The antenna structure further includes a double slotted loop coupled to the first and second LC resonant networks.

公开(公告)号：US20220131271A1

公开(公告)日：2022-04-28

申请号：US17491195

申请日：2021-09-30

Applicant: Silicon Laboratories Inc.

Inventor： Tuomas Hänninen ,  Pasi Rahikkala ,  Attila Zolomy

IPC: H01Q7/00 ,  H01Q1/38 ,  H03H7/38

Abstract: An apparatus includes a module. The module includes an antenna structure. The antenna structure includes a printed monopole antenna. The antenna structure further includes first and second inductive-capacitive (LC) resonant networks that are coupled to the printed monopole antenna. The antenna structure further includes a double slotted loop coupled to the first and second LC resonant networks.

公开(公告)号：US11226371B2

公开(公告)日：2022-01-18

申请号：US16685450

申请日：2019-11-15

Applicant: Silicon Laboratories Inc.

Inventor： Yuwono Kurnia Rahman ,  Pasi Rahikkala ,  Kian Jin Chua ,  Zhiyuan Guan ,  Wei Jue Lim

IPC: G01R31/304 ,  G01R27/06 ,  G01R31/303

Abstract: A test system for testing RF PCBs including an RF probe for interfacing an intermediate node of each RF PCB, an RF source providing an RF test signal, a reflectometer, and a test measurement system that makes a pass/fail determination of each RF PCB using a measured reflection coefficient. Each RF PCB includes an IC matching circuit and an antenna matching circuit coupled between an RFIC and an antenna, in which the intermediate RF node is between the matching circuits. The reflectometer outputs a measured reflection coefficient indicative of a comparison between a reflected RF signal and the RF test signal. The measured reflection coefficient may be corrected using error values based on a calibration procedure using a calibration kit with modified RF PCBs with known loads. The modified RF PCBs are measured with a network analyzer and the test system to calculate the error values used for production testing.

公开(公告)号：US11764749B2

公开(公告)日：2023-09-19

申请号：US16724160

申请日：2019-12-20

Applicant: Silicon Laboratories Inc.

Inventor： Attila Zolomy ,  Pasi Rahikkala ,  Tuomas Hänninen

IPC: H01Q7/00 ,  H03H7/38 ,  H04B1/04 ,  H04B1/18

CPC classification number: H03H7/383 ,  H01Q7/005 ,  H04B1/0458 ,  H04B1/18

Abstract: An apparatus includes a module. The module includes a radio frequency (RF) circuit to transmit or receive RF signals, and a loop antenna to transmit or receive the RF signals. The module further comprises an impedance matching circuit coupled to the RF circuit and to the loop antenna. The impedance matching circuit comprises lumped reactive components.

公开(公告)号：US11757188B2

公开(公告)日：2023-09-12

申请号：US17705247

申请日：2022-03-25

Applicant: Silicon Laboratories Inc.

Inventor： Attila Zolomy ,  Pasi Rahikkala ,  Thomas E. Voor

IPC: H01Q1/50 ,  H01Q7/00 ,  H01Q9/14 ,  H01Q1/22 ,  H01Q23/00

CPC classification number: H01Q7/00 ,  H01Q1/2225 ,  H01Q1/50 ,  H01Q9/14 ,  H01Q23/00

Abstract: An apparatus includes a radio frequency (RF) circuit to transmit or receive RF signals. The apparatus further includes a loop antenna to transmit or receive the RF signals. The apparatus further includes an impedance matching circuit coupled to the RF circuit and to the loop antenna. The impedance matching circuit includes lumped reactive components.

公开(公告)号：US20220416436A1

公开(公告)日：2022-12-29

申请号：US17356853

申请日：2021-06-24

Applicant: Silicon Laboratories Inc.

Inventor： Attila Zólomy ,  Adám Süle ,  Andrea Nagy ,  Jeffrey Tindle ,  Pasi Rahikkala ,  Terry Lee Dickey

IPC: H01Q21/00 ,  H01Q9/04 ,  H01Q1/48

Abstract: An antenna array that utilizes ground guard rings and metamaterial structures is disclosed. In certain embodiments, the antenna array is constructed from a plurality of antenna unit cells, wherein each antenna unit cell is identical. The antenna unit cell comprises a top surface, that contains a patch antenna and a ground guard ring. A reactive impedance surface (RIS) layer is disposed beneath the top surface and contains the metamaterial structures. The metamaterial structures are configured to present an inductance to the patch antennas, thereby allowing the patch antennas to be smaller than would otherwise be possible. In some embodiments, the metamaterial structures comprise hollow square frames. An antenna array constructed using this antenna unit cell has less coupling than conventional antenna arrays, which results in better performance. Furthermore, this new antenna array also requires less space than conventional antenna arrays.

公开(公告)号：US10833400B2

公开(公告)日：2020-11-10

申请号：US16439458

申请日：2019-06-12

Applicant: Silicon Laboratories Inc.

Inventor： Pasi Rahikkala ,  Attila Zolomy

IPC: H01Q1/38 ,  H01Q1/24 ,  H01Q9/04 ,  H01Q9/14

Abstract: An apparatus includes a radio frequency (RF) circuit to transmit or receive RF signals, and a partitioned antenna structure. The partitioned antenna structure includes a first portion of a resonator and a first portion of a radiator. The first portion of the resonator comprises less than an entire resonator. The first portion of the radiator comprises less than an entire radiator.

公开(公告)号：US20190280384A1

公开(公告)日：2019-09-12

申请号：US16420111

申请日：2019-05-22

Applicant: Silicon Laboratories Inc.

Inventor： Thomas E. Voor ,  Attila Zolomy ,  Pasi Rahikkala

IPC: H01Q7/00 ,  H01Q1/22 ,  H03H7/38

Abstract: An apparatus includes a module, which includes an impedance matching circuit. The apparatus further includes a capacitor that is external to the module, and is coupled to the impedance matching circuit. The apparatus further includes a loop antenna to transmit or receive the RF signals. The loop antenna is coupled to the capacitor.