Tunable Microwave Filters and Phase Shifters Based on Ferromagnetic/Dielectric Multilayer Waveguides

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概要

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• We present theoretically microwave filters and phase shifters based on the propagation of hybrid electromagnetic-spin waves in a ferromagnetic/dielectric multilayer waveguide. It is demonstrated that some propagating modes of microwave appear in the waveguide and the number of the modes increases with increasing the number of the building blocks. Those propagating modes originate from the coupling between microwave and spin wave, associated with the collective excitations of spin motions in the whole multilayer system when the layer thickness is relatively thin. In addition, it is shown that the attenuation of microwaves and phase difference in the waveguide are tuned by the magnetic field, the ferromagnetic resonance line width, and the conductivity of ferromagnetic material. The investigations can be used in designing tunable compact bandpass filters and phase shifters of microwave.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2010-03-25

著者

• Mu Wang

  National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China

• Jia Li

  National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China

• Zhang Jiashu

  National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China

• Zhao Jinzhu

  National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China

• Peng Ruwen

  National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China

• Ruili Zhang

  National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China

• Jinzhu Zhao

  National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China

• Ruwen Peng

  National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China

• Jiashu Zhang

  National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China

関連論文

• Thermally Tuning Terahertz Surface Plasmon Polaritons in Corrugated Semiconductor Films
• Tunable Microwave Filters and Phase Shifters Based on Ferromagnetic/Dielectric Multilayer Waveguides

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