High frequency filter
AssigneesSelki Chiba, Mikio Waki, Zeon Corporation
InventorsSeiki Chiba, Mikio Waki, Keisuke Oguma, Shinji Ozawa
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Abstract
A high frequency filter A1 has frequency characteristics such that the amount of attenuation for an input electrical signal is smaller in a first frequency band f1 than in a second frequency band f2. The high frequency filter A1 is provided with a dielectric elastomer transducer 1 that includes a dielectric elastomer layer 13 and a pair of electrode layers 14 sandwiching the dielectric elastomer layer 13. The frequency characteristics are variable by the dielectric elastomer transducer 1. This configuration provides a high frequency filter having frequency characteristics that are variable and suitable for a lightweight and compact configuration.
Claims3
A high frequency filter comprising:
- a high frequency filter body that includes a metal housing, an input unit, an output unit, a plurality of resonant elements, and a plurality of adjusting elements disposed to face the plurality of resonant elements, respectively;
- frequency characteristics such that an amount of attenuation for an input electrical signal is smaller in a first frequency band than in a second frequency band;
- and
- a plurality of dielectric elastomer transducers, each including a dielectric elastomer layer and a pair of electrode layers sandwiching the dielectric elastomer layer,
- wherein any one of the dielectric elastomer transducers is configured to vary the frequency characteristics,
- wherein the plurality of dielectric elastomer transducers are configured to move the plurality of resonant elements, respectively, relative to the metal housing, and
- wherein the plurality of dielectric elastomer transducers are configured to move the plurality of adjusting elements, respectively, relative to the metal housing.
Dependencies are inferred from the claim text.