公开(公告)号：US12142808B2

公开(公告)日：2024-11-12

申请号：US17440523

申请日：2020-03-17

Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY

Inventor： Mikko Varonen ,  Antti Lamminen

IPC: H01P5/16 ,  H01L23/66 ,  H01Q21/00

Abstract: A hybrid millimeter-wave Wilkinson divider comprises an input port (1), a first output port (2), a second output port (3), and transmission lines connecting the input port (1) to the first and second output ports (2, 3) implemented by transmission lines in a carrier substrate (PCB, 31). An isolation resistor of the Wilkinson divider connected between the first and second output ports (2, 3) is integrated in a monolithic micro-wave integrated circuit (MMIC) chip (40) installed on the carrier substrate. On the MMIC chip the isolation resistor is connected between RF input metal pads. A compensation circuit for parasitic capacitances caused by the RF input metal pads is provided on the MMIC chip (40) so that the on-chip resistor appears as a pure resistance to the output ports (2, 3) of the Wilkinson divider on the carrier substrate (PCB, 31).

公开(公告)号：US11953535B2

公开(公告)日：2024-04-09

申请号：US17260825

申请日：2019-07-17

Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY

Inventor： Mikko Varonen ,  Henrik Forsten ,  Jan Saijets

IPC: G01R29/08 ,  G01R35/00 ,  H03B29/00 ,  H03F1/22 ,  H03F3/19 ,  H03F3/72

CPC classification number: G01R29/0878 ,  G01R35/005 ,  H03B29/00 ,  H03F1/22 ,  H03F3/19 ,  H03F3/72 ,  H03F2200/207 ,  H03F2200/451

Abstract: An active noise source apparatus includes a pair of a first and second switched-biased noise amplifier branches (22, 23). A directional coupler (24) having a pair of input ports (3, 4) connected to combine the noise outputs from the first and second switched-biased noise amplifiers. One output port (4) of the directional coupler (24) is connected to a matched termination (Rtermination) and another output port (2) of the directional coupler (24) is connected to an output (25) of the active noise source.

公开(公告)号：US20230387045A1

公开(公告)日：2023-11-30

申请号：US18031630

申请日：2021-10-08

Applicant: Teknologian tutkimuskeskus VTT Oy

Inventor： Pekka Pursula ,  Vladimir Ermolov ,  Antti Lamminen ,  Jaakko Saarilahti ,  Mikko Varonen

IPC: H01L23/66 ,  H01L23/31 ,  H01L23/498 ,  H01L23/00

CPC classification number: H01L23/66 ,  H01L23/3121 ,  H01L23/49822 ,  H01L24/08 ,  H01L24/48 ,  H01L2223/6627 ,  H01L2223/6611 ,  H01L2223/6683 ,  H01L2224/08155 ,  H01L2924/18161 ,  H01L2924/1423 ,  H01L2224/48158 ,  H01L2924/10253

Abstract: According to an example aspect of the present invention, there is provided a wafer-level package (1), comprising a top substrate (10) and a bottom substrate (30), wherein the top substrate (10) comprises a recess (12) on a side of the top substrate (10) which is towards the bottom substrate (30) and the bottom substrate (30) comprises a recess (32) on a side of the bottom substrate (30) which is towards the top substrate (10), wherein the recess (12) of the top substrate (10) and the recess (32) of the bottom substrate (30) are arranged to form a waveguide (5) within the wafer-level package (1) and a middle substrate (20) arranged to couple an integrated circuit (24) of the wafer-level package (1) to the waveguide (5), wherein the middle substrate (20) is in between the top substrate (10) and the bottom substrate (30) and the middle substrate (20) comprises a probe (21), wherein the probe (21) extends to the waveguide (5) and the probe (21) is arranged to couple a signal coming from the integrated circuit (24) to the waveguide (5), or to couple a signal coming from the waveguide (5) to the integrated circuit (24).

公开(公告)号：US12143079B2

公开(公告)日：2024-11-12

申请号：US17606777

申请日：2020-04-29

Applicant: Teknologian tutkimuskeskus VTT Oy

Inventor： Antti Lamminen ,  Mikko Varonen

IPC: H04B1/38 ,  H03F3/195 ,  H03F3/24 ,  H03F3/60 ,  H04L5/16

Abstract: According to an example aspect of the present invention, there is provided an apparatus for an antenna, comprising, a first power amplifier and a second power amplifier and a common ground between the first power amplifier and the second power amplifier, wherein a Radio Frequency, RF, output of the first power amplifier is coupled to the common ground and a RF output of the second power amplifier is coupled to the common ground.

公开(公告)号：US11476814B2

公开(公告)日：2022-10-18

申请号：US16961664

申请日：2018-12-11

Applicant: Teknologian tutkimuskeskus VTT Oy

Inventor： Mikko Varonen ,  Jan Saijets ,  Jan Holmberg

IPC: H03F3/21 ,  H03F3/19 ,  H03F3/45

Abstract: An improved transformer based switch for PALNA applications. The transformer based switch having an input single pole port and a circuit with at least one transformer and at least one switch configured to connect portions of the transformer to ground or to short the transformer. The primary side of the transformer being connected to the input port and the secondary side of the transformer being connected to an output port.

公开(公告)号：US20220216837A1

公开(公告)日：2022-07-07

申请号：US17606777

申请日：2020-04-29

Applicant: Teknologian tutkimuskeskus VTT Oy

Inventor： Antti Lamminen ,  Mikko Varonen

IPC: H03F3/24 ,  H03F3/195 ,  H03F3/60

Abstract: According to an example aspect of the present invention, there is provided an apparatus for an antenna, comprising, a first power amplifier and a second power amplifier and a common ground between the first power amplifier and the second power amplifier, wherein a Radio Frequency, RF, output of the first power amplifier is coupled to the common ground and a RF output of the second power amplifier is coupled to the common ground.