Patents by Inventor Suresh Kumar Vagvala

Suresh Kumar Vagvala 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).

  • Patent number: 10044101
    Abstract: A printed circuit antenna has a feedline region and a radiating structure region. The feedline region is formed of conductors on an upper plane, the conductors including a feedline which is edge coupled to a left ground structure and a right ground structure, all of which are above a ground plane. Upper highband RF is coupled from the RF feedline to a first segment, a second segment, and a third segment. For lowband RF frequencies, RF is coupled from the feedline to the first segment and stub, across a gap to a fourth segment, a fifth segment LB radiating structure, a fifth segment common radiating structure, and to a sixth segment common radiating structure which is grounded. For lower highband RF frequencies, RF is coupled from the feedline to the first segment and stub to a sixth segment common radiating structure, fifth segment, bridge, seventh segment, and eighth segment.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: August 7, 2018
    Assignee: Redpine Signals, Inc.
    Inventors: Deepu Vasudevan Nair, Varun Ramchandani, Partha Sarathy Murali, Suresh Kumar Vagvala
  • Patent number: 9520646
    Abstract: A printed circuit antenna has a feedline region and a radiating structure region. The feedline region is formed of conductors on an upper plane, the conductors including a feedline which is edge coupled to a left ground structure and a right ground structure, all of which are above a ground plane. High-band RF is coupled from the RF feedline to a HB-U radiating structure including a first segment and a second segment perpendicular to the first segment, and also an HB-L radiating structure including a first segment coupled to a third segment through an air gap. Low-band RF is coupled across a gap from the first segment to a LB radiating structure having a third segment, a fourth segment, a fifth segment, a sixth segment, a seventh segment, an eighth segment, and a ninth segment with a terminus coupled to the left ground structure.
    Type: Grant
    Filed: June 21, 2014
    Date of Patent: December 13, 2016
    Assignee: Redpine Signals, Inc.
    Inventors: Deepu Vasudevan Nair, Varun Ramchandani, Suresh Kumar Vagvala, Partha Sarathy Murali
  • Patent number: 9478859
    Abstract: A printed circuit tri-band antenna has a feedline region and a radiating structure region which provides RF emissions in a lowband (LB) RF frequency, a lower highband (HB-L) frequency, and a upper highband (HB-U) frequency. The feedline region is formed of conductors on an upper plane, the conductors including a feedline which is edge coupled to left and right ground structures. The feedline couples directly to a HB-U radiating structure, and includes a stub. The HB-U structure and stub also provide edge coupling through a gap for coupling RF into a combined HB-L and LB radiation structure, which provides frequency-dependent paths for radiating RF energy at the HB-L and LB frequencies. The antenna is preferably used with 2.35 Ghz LB, 5.07 GHz HB-L, and 5.57 Ghz HB-H.
    Type: Grant
    Filed: February 9, 2014
    Date of Patent: October 25, 2016
    Assignee: Redpine Signals, Inc.
    Inventors: Deepu Vasudevan Nair, Varun Ramchandani, Partha Sarathy Murali, Suresh Kumar Vagvala
  • Patent number: D798845
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: October 3, 2017
    Assignee: Redpine Signals, Inc.
    Inventors: Deepu Vasudevan Nair, Varun Ramchandani, Suresh Kumar Vagvala, Partha Sarathy Murali
  • Patent number: D802564
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: November 14, 2017
    Assignee: Redpine Signals, Inc.
    Inventors: Deepu Vasudevan Nair, Varun Ramchandani, Partha Sarathy Murali, Suresh Kumar Vagvala
  • Patent number: D856984
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: August 20, 2019
    Assignee: Redpine Signals, Inc.
    Inventors: Deepu Vasudevan Nair, Varun Ramchandani, Partha Sarathy Murali, Suresh Kumar Vagvala