Active noise source design

Mikko Varonen; Henrik Forsten; Jan Saijets

Active noise source design

Mikko Varonen (Inventor)
, Henrik Forsten (Inventor)
, Jan Saijets (Inventor)

BA6214 Antennas and circuits

Research output: Patent › Patent

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.

Patent family as of 21.7.2026
EP3824548 A1, US11953535 BB, US2021270881 AA, WO20016483 A1

Original language	English
Patent number	US11953535 B2
IPC	G01R29/08
Priority date	18/07/18
Filing date	17/07/19
Publication status	Published - 9 Apr 2024
MoE publication type	H1 Granted patent

Cite this

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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. Patent family as of 21.7.2026 EP3824548 A1, US11953535 BB, US2021270881 AA, WO20016483 A1",

author = "Mikko Varonen and Henrik Forsten and Jan Saijets",

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T1 - Active noise source design

AU - Varonen, Mikko

AU - Forsten, Henrik

AU - Saijets, Jan

PY - 2024/4/9

Y1 - 2024/4/9

N2 - 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. Patent family as of 21.7.2026 EP3824548 A1, US11953535 BB, US2021270881 AA, WO20016483 A1

AB - 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. Patent family as of 21.7.2026 EP3824548 A1, US11953535 BB, US2021270881 AA, WO20016483 A1

UR - https://fi.espacenet.com/publicationDetails/biblio?II=0&ND=3&adjacent=true&locale=fi_FI&FT=D&date=20210902&CC=US&NR=2021270881A1&KC=A1

M3 - Patent

M1 - US11953535 B2

Y2 - 2019/07/17

ER -

Active noise source design

Abstract

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