Patents by Inventor Joseph H. Provencher

Joseph H. Provencher 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).

  • Multifrequency array using common phasors
    Patent number: 4072956
    Abstract: A single antenna array having a phase shifter at the input of each antenna lement and fed by a multifrequency input for simultaneously generating at least two beams. When the different excitation frequencies are simultaneously inputted into the phase shifters, a separate phase increment is introduced into each radiator for each frequency. The result is a separate beam output from each frequency input, the beams being generated simultaneously but at different beam pointing angles.
    Type: Grant
    Filed: May 17, 1976
    Date of Patent: February 7, 1978
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Joseph H. Provencher
  • Multibeam adaptive array
    Patent number: 4032922
    Abstract: An antenna system utilizing the multibeam advantages of the Butler matrix achieve beam steering with the additional capability of placing nulls in the direction of undesired radiation. The system comprises essentially a Butler matrix with an adaptive circuit interposed between each of the antenna elements and a corresponding one of the hybrid matrices of the Butler matrix. Switch means are also provided for separating the transmit and receive functions.
    Type: Grant
    Filed: January 9, 1976
    Date of Patent: June 28, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Joseph H. Provencher
  • Two dimensional array antenna
    Patent number: 4010474
    Abstract: Two dimensional beam steering of an antenna array is effected by feeding a lurality of radiating elements from a hybrid matrix that is a beam forming and phasing network in combination with single pole multiple throw switches where switching the various matrix terminals give the elevation beams. Ferrite phase shifters feeding into the single pole multiple switching means provides steering of the antenna beam in the azimuth plane.
    Type: Grant
    Filed: May 5, 1975
    Date of Patent: March 1, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Joseph H. Provencher