Patents by Inventor Ashok K. Gorwara

Ashok K. Gorwara 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).

  • Planar balanced mixer/converter for broadband applications
    Patent number: 4032849
    Abstract: A broadband millimeter wave (26.5-40 GHz) mixer/converter utilizing slotl and coplanar strip-line for the construction of the hybrid junction. The RF and local oscillator signals are applied 180.degree. out of phase to a pair of beam-lead diodes. A diplexer consisting of a low-pass filter and a bandpass filter is also provided to separate the IF and LO signals. A first microwave integrated circuit (MIC) card carries the waveguide to slotline transition, the slotline transmission section, the tapered coplanar waveguide section and the LO bandpass filter. A pair of Schottky-barrier diodes are connected across the transmission channels of the coplanar waveguide section to form the hybrid junction. The LO input is applied to a section of suspended strip-line on this first MIC card. A second MIC card carries the IF low-pass filter and couples to the IF output of the mixer.
    Type: Grant
    Filed: September 1, 1976
    Date of Patent: June 28, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Ulrich H. Gysel, Ashok K. Gorwara
  • Cooperative signal processing beacon transponder
    Patent number: 4005418
    Abstract: A radar target enhancement system is provided whereby a received target signal is regenerated and retransmitted with the same frequency and pulse width as the received target sigal.
    Type: Grant
    Filed: March 28, 1975
    Date of Patent: January 25, 1977
    Assignee: Stanford Research Institute
    Inventor: Ashok K. Gorwara