Patents Assigned to Bartley Machines & Manufacturing
  • Dielectric resonator filter having reduced spurious modes
    Patent number: 6239673
    Abstract: A dielectric resonator filter operating in a magnetic dipole mode includes a plurality of dielectric resonators disposed in a plurality of dielectric resonator cavities. A plurality of coupling mechanism provide an in-line coupling factor between respective resonators of electrically adjacent dielectric resonator cavities. At least one cross-coupling device provides cross-coupling between respective resonators of non-adjacent dielectric resonator cavities. A magnitude and sign of the in-line coupling factors and the cross-coupling factor, provide a dielectric resonator filter, for which a desired amplitude and phase response can be provided.
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: May 29, 2001
    Assignee: Bartley Machines & Manufacturing
    Inventors: Robert J. Wenzel, William G. Erlinger, Paul Bartley, Lucy Bartley
  • Dielectric resonator filter having cross-coupled resonators
    Patent number: 6094113
    Abstract: A dielectric resonator filter operating in a magnetic dipole mode includes a plurality of dielectric resonators disposed in a plurality of dielectric resonator cavities. A plurality of coupling mechanism provide an in-line coupling factor between respective resonators of electrically adjacent dielectric resonator cavities. At least one cross-coupling device provides cross-coupling between respective resonators of non-adjacent dielectric resonator cavities. A magnitude and sign of the in-line coupling factors and the cross-coupling factor, provide a dielectric resonator filter, for which a desired amplitude and phase response can be provided.
    Type: Grant
    Filed: March 10, 1998
    Date of Patent: July 25, 2000
    Assignee: Bartley Machines & Manufacturing
    Inventors: Robert J. Wenzel, William G. Erlinger, Paul Bartley, Lucy Bartley
  • Series coupled filters where the first filter is a dielectric resonator filter with cross-coupling
    Patent number: 5841330
    Abstract: A dielectric resonator filter operating in a magnetic dipole mode includes a plurality of dielectric resonators disposed in a plurality of dielectric resonator cavities. A plurality of coupling mechanism provide an in-line coupling factor between respective resonators of electrically adjacent dielectric resonator cavities. At least one cross-coupling device provides cross-coupling between respective resonators of non-adjacent dielectric resonator cavities. A magnitude and sign of the in-line coupling factors and the cross-coupling factor, provide a dielectric resonator filter, for which a desired amplitude and phase response can be provided.
    Type: Grant
    Filed: March 23, 1995
    Date of Patent: November 24, 1998
    Assignee: Bartley Machines & Manufacturing
    Inventors: Robert J. Wenzel, William G. Erlinger, Peter Melling, Paul Bartley, Lucy Bartley