Patents by Inventor Klas ARVIDSSON

Klas ARVIDSSON has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Measurement device for antenna systems
    Patent number: 11506697
    Abstract: A measurement device for measuring performance of at least one antenna system in a first frequency band and in a second frequency band. The measurement device including an outer chamber having inwardly radio frequency reflective walls configured to enclose the antenna system, an inner chamber deployable inside the outer chamber, the inner chamber having radio frequency absorptive walls configured to enclose the antenna system, a first test antenna arrangement arranged inside the outer chamber and configured for a measurement operation in the first frequency band, and a second test antenna arrangement arranged inside the inner chamber and configured for a measurement operation in the second frequency band, thereby enabling measuring performance of the antenna system in a reflective radio frequency environment by the first test antenna arrangement and measuring performance in an essentially anechoic radio frequency environment by the second test antenna arrangement.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: November 22, 2022
    Assignee: BLUETEST AB
    Inventors: Robert Rehammar, John Kvarnstrand, Klas Arvidsson
  • AN IMPROVED MEASUREMENT DEVICE FOR ANTENNA SYSTEMS
    Publication number: 20210318369
    Abstract: A measurement device for measuring performance of at least one antenna system in a first frequency band and in a second frequency band. The measurement device including an outer chamber having inwardly radio frequency reflective walls configured to enclose the antenna system, an inner chamber deployable inside the outer chamber, the inner chamber having radio frequency absorptive walls configured to enclose the antenna system, a first test antenna arrangement arranged inside the outer chamber and configured for a measurement operation in the first frequency band, and a second test antenna arrangement arranged inside the inner chamber and configured for a measurement operation in the second frequency band, thereby enabling measuring performance of the antenna system in a reflective radio frequency environment by the first test antenna arrangement and measuring performance in an essentially anechoic radio frequency environment by the second test antenna arrangement.
    Type: Application
    Filed: June 17, 2019
    Publication date: October 14, 2021
    Inventors: Robert REHAMMAR, John KVARNSTRAND, Klas ARVIDSSON