Patents by Inventor Dharmesh P. Patel

Dharmesh P. Patel 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).

  • Wideband multi-function phased array antenna aperture
    Patent number: 9716308
    Abstract: A wideband multi-function phased array antenna aperture includes a plurality of low and high frequency phased array apertures that are asymmetrically dispersed over a largest aperture. Each aperture of the plurality of low and high frequency phased array apertures includes a plurality of frequency scaled radiating elements. The antenna aperture consolidates many functions into a single wideband multi-function phased array antenna where the use of frequency scaled elements reduces the total number of elements needed, thereby reducing the size, weight, power, cost and radar cross section when compared to conventional wideband phased array architectures.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: July 25, 2017
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Rashmi Mital, Jaganmohan B Rao, Dharmesh P. Patel, Gregory C Tavik
  • WIDEBAND MULTI-FUNCTION PHASED ARRAY ANTENNA APERTURE
    Publication number: 20130207878
    Abstract: A wideband multi-function phased array antenna aperture includes a plurality of low and high frequency phased array apertures that are asymmetrically dispersed over a largest aperture. Each aperture of the plurality of low and high frequency phased array apertures includes a plurality of frequency scaled radiating elements. The antenna aperture consolidates many functions into a single wideband multi-function phased array antenna where the use of frequency scaled elements reduces the total number of elements needed, thereby reducing the size, weight, power, cost and radar cross section when compared to conventional wideband phased array architectures.
    Type: Application
    Filed: September 14, 2012
    Publication date: August 15, 2013
    Inventors: Rashmi Mital, Jaganmohan B. Rao, Dharmesh P. Patel, Gregory C. Tavik
  • Method of designing a low cost multibeam phased array antenna for communicating with geostationary satellites
    Patent number: 7656351
    Abstract: A method for electronically scanning a predetermined geostationary orbital arc segment around the earth with an antenna system. The antenna system includes a planar array. A number of fixed electronic squints is selected. Lengths of the total plurality of fixed delay line lengths are generated for the planar array based on the number of fixed electronic squints. All of the antenna elements in the planar array for the mobile earth station are fitted with the generated lengths. The orbital arc segment is electronically scanned with a single linear scan with the planar array. This method is extendable to the case of multiple beams by adding additional phase shifters at each column and keeping the number of fixed line lengths the same, regardless of the number of additional beams.
    Type: Grant
    Filed: January 4, 2008
    Date of Patent: February 2, 2010
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Jaganmohan B. L. Rao, Rashmi Mital, Dharmesh P. Patel, Mark G. Parent, Gregory C. Tavik