Acconeer Ab

Mikael Egard

Lars-Erik Wernersson

Mats Ärlelid

Hans Grubeck

Erik Lind

Rikard Nelander

Denis Chouvaev

Per Atlevi

Ehsan Foroozanfard

Mats ÄRlelid

A radar device comprising: a printed circuit board (), PCB, comprising a ground plane (), a radar sensor chip package () mounted on the PCB () and comprising a mm Wave radio frequency, RF, integrated circuit () and a planar antenna structure () configured as an antenna-in-package and oriented in a plane parallel to the ground plane (), wherein the mmWave RF integrated circuit () is configured to output a mmWave signal () to be transmitted by the planar antenna structure (), and a cavity (), wherein the radar sensor chip package () is arranged in the cavity (), the cavity () having an open side (), and the cavity () being defined by a conductive rear wall surface () opposite the open side (), a pair of mutually opposite and conductive sidewall surfaces (), a conductive top surface (), and a conductive bottom surface (), wherein at least a portion of the conductive bottom surface () is formed by at least a portion of the ground plane () of the PCB (), and wherein the sidewall surfaces, the top surface, and the bottom surfaces () each extends from the rear wall surface () towards the open side () of the cavity ().

Electronic radar device

According to a first aspect of the present inventive concept there is provided an autonomous mobile cleaning robot, comprising: a radar sensor configured to scan a surface, during a movement of the robot along the surface, by transmitting radar signals towards the surface and acquiring, at different positions along said movement, radar responses from the surface, a radar signal processor configured to extract one or more features of each acquired radar response from the surface, and a controller configured to control an operation of the robot based on the extracted one or more features.

Autonomous mobile cleaning robot

According to an aspect of the present inventive concept there is provided an autonomous mobile robot comprising: a set of radar sensors, the sensors being arranged at spatially different positions on the mobile robot, the set including at least a first radar sensor having a first main detection lobe extending in front of the robot and a second radar sensor having a second main detection lobe extending in front of the robot, wherein the first radar sensor and the second radar sensor are arranged such that the first main detection lobe and the second main detection lobe intersect in front of the mobile robot.

Autonomous mobile robot comprising radar sensors

According to one aspect of the inventive concept there is provided a transmitter-receiver system comprising: a transmitter arranged to transmit a wavelet; a receiver arranged to receive a wavelet; a wavelet generator arranged to generate a reference wavelet; and timing circuitry arranged to receive a reference clock signal, output a first trigger signal for triggering transmission of a wavelet and output a second trigger signal for triggering generation of a reference wavelet. The timing circuitry further comprises a delay line including at least one delay element and being arranged to receive a signal at an input of the delay line and transmit a delayed signal at an output of the delay line, wherein a state of each delay element of at least a subset of said at least one delay elements is switchable between at least a first state and a second state. A delay element in said first state, i.e. switched to its first state, presents a first propagation delay. A delay element in said second state, i.e. switched to its second state, presents a second propagation delay which differs from the first propagation delay by a value which is smaller than a period of the reference clock signal. Thereby a total propagation delay of the delay line is configurable by controlling the state of each delay element of said subset. The system further comprises a controller arranged to control a delay between the first trigger signal and the second trigger signal by controlling the total propagation delay of the delay line. The system is arranged to correlate the reference wavelet with a received wavelet for at least one setting of the total propagation delay.

Transmitter-receiver system

A transceiver comprising a tank circuit, a variable differential conductance, VDC, coupled to the tank circuit, and a variable resistance coupled to the VDC is disclosed. The variable resistance is arranged to bias the VDC into a region of positive differential conductance during a first state of operation of the transceiver, and bias the VDC into a region of negative differential conductance during a second state of operation of the transceiver.

Transceiver module

According to one aspect of the inventive concept there is provided a process for manufacturing a semiconductor device, comprising: providing a channel layer (), providing a mask () on the channel layer, epitaxially growing a contact layer () in contact with the channel layer, epitaxially growing a support layer () on the contact layer, wherein the support layer is arranged to be etched at a higher rate than the contact layer, forming a trench extending through the support layer by removing the mask, and providing a conductor () in the trench. There is also provided an intermediate product for the manufacture of a semiconductor device.

Growing community of inventors

Lund, Sweden

Mikael Egard