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Electromagnetism

Sony Semiconductor Solutions Corporation Secures Patent for Antenna Device Incorporating Different Electromagnetic Band Gap (EBG) Elements

Strategic Insights

— 1 min read

Sony Semiconductor Solutions Corporation has successfully secured a patent for an antenna device that utilizes different electromagnetic band gap (EBG) elements to improve attenuation characteristics. The patent, with the number 12431629, was filed on July 9, 2021, and published online on September 30, 2025. This innovative design is set to revolutionize the field of antenna technology, particularly in radar devices and vehicle-mounted applications.

The antenna device according to the patent description includes a substrate with a main surface extending in a first direction and a second direction, an antenna element disposed on the main surface, and a plurality of EBG elements that surround the antenna element. The plurality of EBG elements consists of a plurality of first EBG elements and a plurality of second EBG elements having a structure different from the first structure. This design enables the device to attenuate electromagnetic waves traveling from the antenna element toward the edges of the substrate in both the first and second directions.

Key Takeaways:

  • The patent describes an antenna device that incorporates different electromagnetic band gap (EBG) elements to improve attenuation characteristics.
  • The device includes a substrate with a main surface extending in a first direction and a second direction, an antenna element disposed on the main surface, and a plurality of EBG elements that surround the antenna element.
  • The plurality of EBG elements consists of a plurality of first EBG elements and a plurality of second EBG elements having a structure different from the first structure.
  • The device is intended for use in radar devices and vehicle-mounted applications.
  • The patent features 20 distinct claims, including variations of the device's configuration and the arrangement of EBG elements.
  • The patent number is 12431629, filed on July 9, 2021, and published online on September 30, 2025.

Statistics:

  • Number of patent claims: 20
  • Date of patent filing: July 9, 2021
  • Date of patent publication: September 30, 2025
  • Patent number: 12431629

Sources:

  • Takahashi, Yudai. Antenna device including different electromagnetic band gap (EBG) elements. U.S. Patent Number 12431629, filed July 9, 2021, and published online on September 30, 2025.
  • URL and more information on this patent: https://ppubs.uspto.gov/pubwebapp/external.html?q=(12431629)&db=USPAT&type=ids

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