Patents by Inventor Rajaratnam Thiruvarankan

Rajaratnam Thiruvarankan 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).

  • Publication number: 20230370173
    Abstract: A test system includes a radio frequency (RF) shielded chamber and an antenna array in the RF shielded chamber. The antenna array includes groups of antenna elements and power combiners. Each group of antenna elements is matched to a matching group of antenna elements by virtue of being coupled to a respective power combiner for both the group and the matching group. The antenna array is configured, by virtue of spacing apart the antenna elements by at least half of a wavelength of a test signal for testing a wireless device in the RF chamber, so that power delivered to output ports of the antenna array is substantially uniform regardless of where the wireless device is placed within the RF chamber.
    Type: Application
    Filed: July 25, 2023
    Publication date: November 16, 2023
    Inventor: Rajaratnam Thiruvarankan
  • Patent number: 11728908
    Abstract: A test system includes a radio frequency (RF) shielded chamber and an antenna array in the RF shielded chamber. The antenna array includes groups of antenna elements and power combiners. Each group of antenna elements is matched to a matching group of antenna elements by virtue of being coupled to a respective power combiner for both the group and the matching group. The antenna array is configured, by virtue of spacing apart the antenna elements by at least half of a wavelength of a test signal for testing a wireless device in the RF chamber, so that power delivered to output ports of the antenna array is substantially uniform regardless of where the wireless device is placed within the RF chamber.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: August 15, 2023
    Assignee: Keysight Technologies Singapore (Sales) Pte., Ltd.
    Inventor: Rajaratnam Thiruvarankan
  • Patent number: 10461407
    Abstract: A flexible planar antenna device and method for using the same is disclosed. In some embodiments, the flexible planar antenna device includes a planar body comprising a flexible dielectric material that enables the planar antenna device to be flexibly shapeable to a surface of a wireless device under test (DUT). The flexible planar antenna device further includes an antenna element contained within the planar body and for communicatively coupling with at least one antenna of the wireless DUT and at least one adhesive element that enables the planar body to attach to and conform to the surface of the DUT.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: October 29, 2019
    Assignee: Keysight Technologies, Inc.
    Inventors: Rajaratnam Thiruvarankan, Charles Edward St. John
  • Publication number: 20190238238
    Abstract: A test system includes a radio frequency (RF) shielded chamber and an antenna array in the RF shielded chamber. The antenna array includes groups of antenna elements and power combiners. Each group of antenna elements is matched to a matching group of antenna elements by virtue of being coupled to a respective power combiner for both the group and the matching group. The antenna array is configured, by virtue of spacing apart the antenna elements by at least half of a wavelength of a test signal for testing a wireless device in the RF chamber, so that power delivered to output ports of the antenna array is substantially uniform regardless of where the wireless device is placed within the RF chamber.
    Type: Application
    Filed: April 10, 2019
    Publication date: August 1, 2019
    Inventor: Rajaratnam Thiruvarankan
  • Patent number: 10313031
    Abstract: A test system includes a radio frequency (RF) shielded chamber and an antenna array in the RF shielded chamber. The antenna array includes groups of antenna elements and power combiners. Each group of antenna elements is matched to a matching group of antenna elements by virtue of being coupled to a respective power combiner for both the group and the matching group. The antenna array is configured, by virtue of spacing apart the antenna elements by at least half of a wavelength of a test signal for testing a wireless device in the RF chamber, so that power delivered to output ports of the antenna array is substantially uniform regardless of where the wireless device is placed within the RF chamber.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: June 4, 2019
    Assignee: KEYSIGHT TECHNOLOGIES SIGNAPORE (SALES) PTE. LTD.
    Inventor: Rajaratnam Thiruvarankan
  • Publication number: 20190131695
    Abstract: A flexible planar antenna device and method for using the same is disclosed. In some embodiments, the flexible planar antenna device includes a planar body comprising a flexible dielectric material that enables the planar antenna device to be flexibly shapeable to a surface of a wireless device under test (DUT). The flexible planar antenna device further includes an antenna element contained within the planar body and for communicatively coupling with at least one antenna of the wireless DUT and at least one adhesive element that enables the planar body to attach to and conform to the surface of the DUT.
    Type: Application
    Filed: October 31, 2017
    Publication date: May 2, 2019
    Inventors: Rajaratnam Thiruvarankan, Charles Edward St. John
  • Publication number: 20180048399
    Abstract: A test system includes a radio frequency (RF) shielded chamber and an antenna array in the RF shielded chamber. The antenna array includes groups of antenna elements and power combiners. Each group of antenna elements is matched to a matching group of antenna elements by virtue of being coupled to a respective power combiner for both the group and the matching group. The antenna array is configured, by virtue of spacing apart the antenna elements by at least half of a wavelength of a test signal for testing a wireless device in the RF chamber, so that power delivered to output ports of the antenna array is substantially uniform regardless of where the wireless device is placed within the RF chamber.
    Type: Application
    Filed: August 11, 2016
    Publication date: February 15, 2018
    Inventor: Rajaratnam Thiruvarankan