Patents by Inventor Terence Doiron

Terence Doiron 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).

  • Compact Magic-T using microstrip-slotline transitions
    Patent number: 7830224
    Abstract: The design of a compact low-loss Magic-T is described. The planar Magic-T incorporates a compact microstrip-slotline tee junction and small microstrip-slotline transition area to reduce slotline radiation. The Magic-T produces broadband in-phase and out-of-phase power combiner/divider responses, has low in-band insertion loss, and small in-band phase and amplitude imbalance.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: November 9, 2010
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Kongpop U-Yen, Edward J. Wollack, Terence Doiron, Samuel H. Moseley
  • BROADBAND PLANAR MAGIC-T WITH LOW PHASE AND AMPLITUDE IMBALANCE
    Publication number: 20090102578
    Abstract: A planar Magic-T that incorporates complementary microstrip-slotline tee junction and microstrip-slotline transition area to produce a compact broadband out-of-phase combining structure with minimum loss due to slotline radiation. The Magic-T structure layout is symmetric which causes the structure to be less dependent on the transmission line phase variation. The Magic-T produces broadband in-phase and out-of-phase power combiner/divider responses, has low in-band insertion loss, and small in-band phase and amplitude imbalance. A multi-section impedance transformation network is used to increase the operating bandwidth and minimize the parasitic coupling around the microstrip-slotline tee junction. As a result, the improved magic-T has greater bandwidth and lower phase imbalance at the sum and difference ports than the earlier magic-T designs.
    Type: Application
    Filed: June 18, 2008
    Publication date: April 23, 2009
    Applicant: United States of America as represented by the Administrator of the National Aeronautics and Spac
    Inventors: Kongpop U-Yen, Edward J. Wollack, Terence A. Doiron
  • COMPACT MAGIC-T USING MICROSTRIP-SLOTLINE TRANSITIONS
    Publication number: 20090102577
    Abstract: The design of a compact low-loss Magic-T is described. The planar Magic-T incorporates a compact microstrip-slotline tee junction and small microstrip-slotline transition area to reduce slotline radiation. The Magic-T produces broadband in-phase and out-of-phase power combiner/divider responses, has low in-band insertion loss, and small in-band phase and amplitude imbalance.
    Type: Application
    Filed: October 23, 2007
    Publication date: April 23, 2009
    Applicant: U.S.A as represented by the Administrator of the National Aeronautics and Space Admi
    Inventors: Kongpop U-Yen, Edward J. Wollack, Terence Doiron, Samuel H. Moseley