Patents Assigned to RANLOS AB
  • Publication number: 20210250107
    Abstract: An apparatus for measuring over-the-air (OTA) wireless communication performance in an automotive application of a device under test arranged on or in a vehicle. The apparatus includes a chamber and a platform for supporting the vehicle within the chamber. The platform is a rotatable platform that can rotate the vehicle, and the floor is inwardly reflective, and optionally covered with a top layer to resemble asphalt or other road covers. In one embodiment, the chamber is a reverberation chamber, simulating a multi-path environment, and preferably a rich isotropic multipath (RIMP) environment. In another embodiment, the chamber has inwardly absorbing walls, simulating a random-LOS environment.
    Type: Application
    Filed: March 4, 2021
    Publication date: August 12, 2021
    Applicant: RANLOS AB
    Inventor: Per-Simon KILDAL
  • Patent number: 11088768
    Abstract: An apparatus for measuring over-the-air (OTA) wireless communication performance in an automotive application of a device under test (DUT) arranged on or in a vehicle. The apparatus includes a chamber defining an internal volume therein, such as an EMC chamber or a semi-anechoic chamber. Further, a rotatable platform for supporting the vehicle is provided enclose in the internal volume, together with at least one chamber antenna. A communication system test instrument is further provided for measuring the transmission between the device under test and the chamber antenna. The chamber antenna is an array antenna, including a horizontal linear array of antenna elements, the chamber antenna preferably providing a plane wave in near-field where the vehicle is located. The array may further include a plurality of horizontal linear arrays, overlying each other in a vertical direction.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: August 10, 2021
    Assignee: RANLOS AB
    Inventors: Per-Simon Kildal, Andrés Àlayon Glazunov
  • Publication number: 20180375594
    Abstract: An apparatus for measuring over-the-air (OTA) wireless communication performance in an automotive application of a device under test (DUT) arranged on or in a vehicle. The apparatus includes a chamber defining an internal volume therein, such as an EMC chamber or a semi-anechoic chamber. Further, a rotatable platform for supporting the vehicle is provided enclose in the internal volume, together with at least one chamber antenna. A communication system test instrument is further provided for measuring the transmission between the device under test and the chamber antenna. The chamber antenna is an array antenna, including a horizontal linear array of antenna elements, the chamber antenna preferably providing a plane wave in near-field where the vehicle is located. The array may further include a plurality of horizontal linear arrays, overlying each other in a vertical direction.
    Type: Application
    Filed: December 15, 2016
    Publication date: December 27, 2018
    Applicant: RANLOS AB
    Inventors: Per-Simon KILDAL, Andrés ÀLAYON GLAZUNOV
  • Publication number: 20170012714
    Abstract: An apparatus for measuring over-the-air (OTA) wireless communication performance in an automotive application of a device under test arranged on or in a vehicle is disclosed. The apparatus comprises a chamber and a platform for supporting the vehicle within the chamber. The platform is a rotatable platform that can rotate the vehicle, and the floor is inwardly reflective, and optionally covered with a top layer to resemble asphalt or other road covers. In one embodiment, the chamber is a reverberation chamber, simulating a multi-path environment, and preferably a rich isotropic multipath (RIMP) environment. In another embodiment, the chamber has inwardly absorbing walls, simulating a random-LOS environment.
    Type: Application
    Filed: November 17, 2014
    Publication date: January 12, 2017
    Applicant: RANLOS AB
    Inventor: Per-Simon KILDAL