Patents by Inventor Uwe Mackens

Uwe Mackens 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).

  • Dielectric composition on the basis of barium titanate
    Publication number: 20050162809
    Abstract: The invention relates to the dielectric composition on the basis of barium titanate (BaTiO3) that is present with Ba(Zn1/3Nb2/3)O3 in a perovslite structure, which dielectric composition exhibits an average grain size d50 in the range of 0.2 ?m to 0.5 ?m and a crystallite size d10 below 0.3 ?m.
    Type: Application
    Filed: May 19, 2003
    Publication date: July 28, 2005
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Detley Hennings, Baby Schreinemacher, Uwe Mackens
  • Tunable piezoelectric filter arrangement using a dielectric material with a voltage-dependent dielectric constant
    Patent number: 6653913
    Abstract: The invention describes a tunable filter arrangement with at least two resonators which are coupled to one another and of which at least one is connected to a capacitor with tunable capacitance. The electrical properties of the resonator, and thus the overall filter characteristic, can be changed through a change in the capacitance of the capacitor. Furthermore, a transmitter, a receiver, a mobile telephone device, and a wireless data transmission system comprising such a filter arrangement are disclosed, as is a tunable bulk acoustic wave resonator.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: November 25, 2003
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Mareike Katharine Klee, Robert Frederick Milsom, Hans Peter Löbl, Rainer Kiewitt, Uwe Mackens, Martinus Hermanus Wilhemus Maria Van Delden, Wilhelm Georg Hermann, Olaf Wunnicke
  • Tunable filter arrangement comprising resonators with reflection layers
    Patent number: 6583688
    Abstract: The invention describes a tunable filter arrangement with a plurality of resonators which are coupled to one another and of which there is at least one which comprises a piezoelectric component made of a ferroelectric material and to which a DC voltage source is connected. The application of a DC voltage to the resonator renders it possible to change its electrical properties and thus the overall filter characteristic. Furthermore, a transmitter, a receiver device, and a mobile telephone device with such a filter arrangement are disclosed, aswell as a tunable bulk acoustic wave resonator.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: June 24, 2003
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Mareike Katharine Klee, Robert Frederick Milsom, Hans Peter Löbl, Rainer Kiewitt, Uwe Mackens, Martinus Hermanus Wilhemus Maria Van Delden, Wilhelm Georg Hermann, Olaf Wunnicke
  • Thin film circuit with component
    Patent number: 6444920
    Abstract: The invention relates to a thin film circuit with component. The thin film circuit comprises a network of capacitors, or a network of capacitors and resistors, or a network of capacitors, resistors and inductances, or a network of capacitors and inductances. Current supply contacts such as, for example, SMD end contacts or bump end contacts render it possible for the thin film circuit to be connected to further components of a circuit or, for example, to be combined with active components through the use of contact surfaces.
    Type: Grant
    Filed: January 26, 2000
    Date of Patent: September 3, 2002
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Mareike K. Klee, Hans-Wolfgang Brand, Uwe Mackens, Rainer Kiewitt, Antonius J. M. Nellisen, Antal F. J. Baggerman, Martin Fleuster, Marc De Samber
  • Tunable filter arrangement
    Publication number: 20010048352
    Abstract: The invention describes a tunable filter arrangement with at least two resonators which are coupled to one another and of which at least one is connected to a capacitor with tunable capacitance. The electrical properties of the resonator, and thus the overall filter characteristic, can be changed through a change in the capacitance of the capacitor.
    Type: Application
    Filed: April 5, 2001
    Publication date: December 6, 2001
    Inventors: Mareike Katharine Klee, Robert Frederick Milsom, Hans Peter Lobl, Rainer Kiewitt, Uwe Mackens, Martinus Hermanus Wilhemus Maria Van Delden, Wilhelm Georg Hermann, Olaf Wunnicke
  • Tunable filter arrangement comprising resonators
    Publication number: 20010028285
    Abstract: The invention describes a tunable filter arrangement with a plurality of resonators which are coupled to one another and of which there is at least one which comprises a piezoelectric component made of a ferroelectric material and to which a DC voltage source is connected. The application of a DC voltage to the resonator renders it possible to change its electrical properties and thus the overall filter characteristic.
    Type: Application
    Filed: April 5, 2001
    Publication date: October 11, 2001
    Inventors: Mareike Katharine Klee, Robert Frederick Milsom, Hans Peter Lobl, Rainer Kiewitt, Uwe Mackens, Martinus Hermanus Wilhemus Maria Van Delden, Wilhelm Georg Hermann, Olaf Wunnicke