Patents by Inventor Jesus A Castaneda

Jesus A Castaneda 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).

  • Publication number: 20030197656
    Abstract: A printed antenna includes a 1st dipole section and a 2nd dipole section. The 1st dipole section includes a 1st radiation section and a 1st frequency section. The 2nd dipole antenna section includes a 2nd radiation section and a 2nd frequency section. The 1st and 2nd dipole antenna sections are electrically coupled together such that the currents flowing through the 1st and 2nd frequency sections substantially cancel and the current flowing through the 1st and 2nd radiation sections are substantially cumulative for a ½ wavelength antenna. For a full wavelength antenna, 1st and 2nd dipole antenna sections are electrically coupled together such that the currents flowing through the 1st and 2nd frequency sections are substantially cumulative and the current flowing through the 1st and 2nd radiation sections substantially cancel.
    Type: Application
    Filed: April 23, 2002
    Publication date: October 23, 2003
    Inventors: Hung Yu David Yang, Jesus A. Castaneda
  • Publication number: 20030197575
    Abstract: An integrated low noise amplifier includes an on-chip balun, a line impedance matching circuit and an on-chip differential amplifier. The on-chip balun is operably coupled to convert a single ended signal into a differential signal. The line impedance matching circuit is operably coupled to the primary of the on-chip balun to provide impedance matching for a line carrying the single ended signal. The on-chip differential amplifier is operably coupled to amplify the differential signal and is impedance matched to the secondary of the on-chip balun.
    Type: Application
    Filed: April 23, 2002
    Publication date: October 23, 2003
    Inventors: Rozieh Rofougaran, Jesus A. Castaneda, Hung Yu David Yang, Lijun Zhang