Optimum Design of Metallic Patch Antennas based on Topology Optimization

• TSUKAMOTO Shota

  Kyoto University

• IZUI Kazuhiro

  Kyoto University

• OTOMORI Masaki

  Kyoto University

• OHKADO Makoto

  Toyota Central R&D Labs.

• NOMURA Tsuyoshi

  Toyota Central R&D Labs.

• NISHIWAKI Shinji

  Kyoto University

Bibliographic Information

Other Title

• トポロジー最適化に基づく金属パッチアンテナの最適設計法

Abstract

A patch antenna is a typical microstrip antenna composed of a dielectric block sandwiched between two thin metal plates, the metal patch and the ground plane. Although the shape of the metal patch critically determines antenna performance, the design of such shapes is often based on trial and error, and an effective method for obtaining optimized shapes is needed. Furthermore, as operating frequency increases, it becomes more difficult to numerically evaluate antenna performance, due to the skin effect, a phenomenon whereby the penetration of high frequency electric current into a metal surface decreases exponentially. In this paper, we construct a topology optimization method of metallic patch antennas that obtains high performance configurations. In this method, a transition boundary condition is implemented so that the skin effect can be treated as surface impedance. As a result, the proposed method can successfully optimize metal shapes that deliver high antenna performance.

Journal

• Transactions of the Japan Society for Computational Engineering and Science

  Transactions of the Japan Society for Computational Engineering and Science 2012 (0), 20120015-20120015, 2012-10-31

  JAPAN SOCIETY FOR COMPUTATIONAL ENGINEERING AND SCIENCE

Keywords

• Topology optimization
• Patch antenna
• Electromagnetic
• Skin effect
• Surface impedance

Details

• CRID: 1390851418978614144
• NII Article ID: 130008056294
• DOI: 10.11421/jsces.2012.20120015
• ISSN: 13478826
• Text Lang: ja
• Data Source:
  • JaLC
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed