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  • 专利标题:   Apparatus for tuning resonance frequency of micromechanical of resonator used in e.g. mobile telephone, has graphene foil that is provided with piezoelectric properties and is adapted to convert electric field produced by signal.
  • 专利号:   WO2014140409-A1, CN105210293-A, EP2974014-A1, US2016028374-A1, JP2016517652-W, EP2974014-A4
  • 发明人:   VOUTILAINEN M
  • 专利权人:   NOKIA CORP, NOKIA TECHNOLOGIES OY, VOUTILAINEN M
  • 国际专利分类:   H01B001/04, H01B005/14, H01L041/08, H03H009/15, H03H009/54, H04B001/38, H01L041/193, H03H009/24, H01Q001/50, H03H003/02, H03H009/02, H03H009/46, H03J001/06, H03H009/17, H03H009/70
  • 专利详细信息:   WO2014140409-A1 18 Sep 2014 H03H-009/15 201463 Pages: 43 English
  • 申请详细信息:   WO2014140409-A1 WOFI050264 11 Mar 2013
  • 优先权号:   CN80076480, EP877847, JP562270, WOFI050264, US14774471

▎ 摘　　要

NOVELTY - The apparatus (200) has an input electrode (202,204) that is provided for receiving radio frequency signals. A graphene foil (210) converts radio frequency signals into mechanical energy. A dielectric support element (212) supports the graphene foil and to space apart the input electrode and the graphene foil. The graphene foil is provided with piezoelectric properties. The graphene foil is adapted to convert an electric field produced by the radio frequency signal between the first input electrode and the second input electrode to mechanical energy. USE - Apparatus for tuning resonance frequency of micromechanical of resonator used in communication devices such as personal digital assistant (PDA), mobile telephone, integrated messaging device (IMD), desktop computer, notebook computer carried by individual who is moving through transport such as car, truck, taxi, bus, train, boat, airplane, bicycle, and motorcycle. ADVANTAGE - Since the graphene foil is provided with piezoelectric properties and graphene foil is adapted to convert an electric field produced by the radio frequency signal between the first input electrode and the second input electrode to mechanical energy, mechanical conversion efficiency of the micromechanical resonator is increased. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for tuning resonance frequency. DESCRIPTION OF DRAWING(S) - The drawing shows a cross sectional view of micromechanical resonator for tuning resonance frequency. Apparatus for tuning resonance frequency (200) Input electrode (202,204) Graphene foil (210) Dielectric support element (212) Gap (224)