Tunable antenna by miniature replica concept

• Project/Area Number: 21560389
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Communication/Network engineering
• Research Institution: Yokohama National University
• Principal Investigator: ARAI Hiroyuki 横浜国立大学, 工学研究院, 教授 (00193053)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2010: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2009: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
• Keywords: マイクロ波 / ミリ波 / 小形アンテナ / チューナブルアンテナ / 入力インピーダンス / アンテナの電気的体積 / クリアランス / アンテナ

Research Abstract

This research proposes a new trimming method for frequency tunable antennas without changing the antenna pattern. The input characteristic of the antenna varies by arranging a non-resonant electric obstacle in its neighborhood, which does not cause the change in radiation pattern. This obstacle is called as "a miniaturized replica." This research also proposes a frequency tuning function using this replica for the application.

Research Products

• [Presentation] A Voltage-Boosting Antenna for RF Energy Harvesting (2012)
  • Author(s): Hiroyuki Arai
  • Organizer: 2012 IEEE International Workshop on Antenna Technology
  • Place of Presentation: Tucson, Arizona
  • Year and Date: 2012-03-05
• [Presentation] A Voltage-Boosting Antenna for RF Energy Harvesting (2012)
  • Author(s): Hiroyuki Arai
  • Organizer: 2012 IEEE International Workshop on Antenna Technology
  • Place of Presentation: Tucson, Arizona, USA
  • Year and Date: 2012-03-05
• [Presentation] Hiroki Ohta、Frequency Tunable Antenna by non-Resonant Parasitic Element (2011)
  • Author(s): Hiroyuki Arai
  • Organizer: International Symposium on Antennas and Propagation
  • Place of Presentation: Jeju, Korea
  • Year and Date: 2011-10-25
• [Presentation] Frequency Tunable Antenna by non-Resonant Parasitic Element (2011)
  • Author(s): Hiroyuki Arai, Hiroki Ohta
  • Organizer: International Symposium on Antennas and Propagation
  • Place of Presentation: Jeju, Korea
  • Year and Date: 2011-10-25
• [Presentation] Evaluation for RFID Tag Antennas by Antenna Clearance Based on Power Reflection Coefficient (2011)
  • Author(s): Akiko Yamada, Hiroyuki Arai
  • Organizer: The 5th European Conference on Antennas & Propagation 2011(Eucap2011)
  • Place of Presentation: Rome, Italy
  • Year and Date: 2011-04-12
• [Presentation] 非共振寄生素子を用いたアンテナ入力特性の制御法の検討 (2011)
  • Author(s): 太田浩樹,新井宏之
  • Organizer: 電子情報通信学会総合大会
  • Place of Presentation: 東京都市大学
  • Year and Date: 2011-03-15
• [Presentation] 非共振寄生素子を用いたアンテナ入力特性の制御法の検討 (2011)
  • Author(s): 太田浩樹
  • Organizer: 電子情報通信学会 2011総合大会
  • Place of Presentation: 東京都市大学 世田谷キャンパス
  • Year and Date: 2011-03-15
• [Presentation] 電力反射係数によるRFIDタグアンテナのクリアランス評価 (2011)
  • Author(s): 山田亜希子,新井宏之
  • Organizer: 電子情報通信学会アンテナ・伝播研究会
  • Place of Presentation: 佐賀大学本庄キャンパス
  • Year and Date: 2011-01-20
• [Presentation] 電力反射係数によるRFIDタグアンテナのクリアランス評価 (2011)
  • Author(s): 山田亜希子
  • Organizer: 電子情報通信学会 アンテナ・伝播研究会
  • Place of Presentation: 佐賀大学 本庄キャンパス
  • Year and Date: 2011-01-20
• [Presentation] Evaluation for RFID Tag Antennas by Antenna Clearance Based on Power Reflection Coefficient (2010)
  • Author(s): Akiko Yamada, Hiroyuki Arai
  • Organizer: The 5th European Conference on Antennas & Propagation 2011
  • Place of Presentation: Rome, Italy
  • Year and Date: 2010-04-12
• [Remarks]
  • URL: http://www.arailab.dnj.ynu.ac.jp