Patents by Inventor Gregory A. Maca

Gregory A. Maca 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).

  • Antenna system architecture
    Patent number: 6701137
    Abstract: An antenna system for tower-top installation includes an antenna array of M×N antenna elements, a corporate feed for operatively interconnecting said antenna elements, a backhaul channel for communicating with ground-based equipment, and radio frequency circuits for processing radio frequency signals between the antenna array and a backhaul link. The radio frequency circuits include substantially all of the circuits required for the processing of radio frequency signals between the antenna array and the backhaul link.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: March 2, 2004
    Assignee: Andrew Corporation
    Inventors: Mano D. Judd, Gregory A. Maca, Donald G. Jackson
  • Transmit/receive distributed antenna systems
    Patent number: 6621469
    Abstract: A distributed antenna device includes a plurality of transmit antenna elements, a plurality of receive antenna elements and a plurality of amplifiers. One of the amplifiers is a power amplifier operatively coupled with each of the transmit antenna elements and mounted closely adjacent to the associated transmit antenna element, such that no appreciable power loss occurs between the power amplifier and the associated antenna element. At least one of the amplifiers is a low noise amplifier and is built into the distributed antenna device for receiving and amplifying signals from at least one of the receive antenna elements. Each power amplifier is a relatively low power, relatively low cost per watt linear amplifier chip.
    Type: Grant
    Filed: May 1, 2001
    Date of Patent: September 16, 2003
    Assignee: Andrew Corporation
    Inventors: Mano D. Judd, Thomas D. Monte, Donald G. Jackson, Gregory A. Maca
  • Shared tower system for accomodating multiple service providers
    Publication number: 20030032424
    Abstract: A system for sharing a cellular tower among multiple service providers comprises an antenna having an array of elements operable to define multiple, individual beams for signals in a communication frequency band and converter circuitry to convert the communication frequency band to a digital band. Filtering and signal processing circuitry define digital band portions for each of the at least two service providers, and drive the antenna to define at least one individual beam for each individual service provider.
    Type: Application
    Filed: August 13, 2001
    Publication date: February 13, 2003
    Inventors: Mano D. Judd, Gregory A. Maca, Joel C. Roper
  • Transmit/receive distributed antenna systems
    Publication number: 20010054983
    Abstract: A distributed antenna device includes a plurality of transmit antenna elements, a plurality of receive antenna elements and a plurality of amplifiers. One of the amplifiers is a power amplifier operatively coupled with each of the transmit antenna elements and mounted closely adjacent to the associated transmit antenna element, such that no appreciable power loss occurs between the power amplifier and the associated antenna element. At least one of the amplifiers is a low noise amplifier and is built into the distributed antenna device for receiving and amplifying signals from at least one of the receive antenna elements. Each power amplifier is a relatively low power, relatively low cost per watt linear amplifier chip.
    Type: Application
    Filed: May 1, 2001
    Publication date: December 27, 2001
    Inventors: Mano D. Judd, Thomas D. Monte, Donald G. Jackson, Gregory A. Maca