小型で堅牢な防衛・CubeSat通信向け次世代アンテナ
Swati Varun Yadav1, Manish Varun Yadav2, S Raghavendra3
1Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, India.
Scientific reports
|February 6, 2026
まとめ
本研究では、防衛および衛星用途向けの小型超広帯域(UWB)アンテナを紹介します。小型化されたアンテナは、信頼性の高い通信システムのために広い帯域幅と高い効率を提供します。
科学分野:
- 電気工学
- 電磁気学
- アンテナ理論
背景:
- 現代の防衛および小型衛星システムには、小型で高性能なアンテナが必要です。
- 既存のアンテナは、広帯域と小型化の要求を満たすのに苦労することがよくあります。
研究 の 目的:
- 小型超広帯域(UWB)アンテナの設計と最適化。
- 防衛および小型衛星アプリケーションの通信要件を満たすこと。
主な方法:
- CST Microwave Studioを使用したアンテナ設計と最適化。
- FR4基板(寸法10×12×1.5 mm³)上での作製。
- Sub-6 GHzおよびミリ波周波数帯にわたる電磁性能評価。
主要な成果:
- インピーダンス帯域幅121.8%(3.4-14 GHz)の動作帯域幅を達成しました。
- ピーク利得4.56 dBi、リターンロス-28 dB、放射効率82.9%を測定しました。
- 小型の電気サイズ(0.113λ × 0.136λ × 0.017λ)にもかかわらず、安定した放射パターンと高い効率を示しました。
結論:
- 小型UWBアンテナは、現代の防衛およびCubeSatミッションの要件を満たします。
- この設計は、回復力があり、干渉に強く、高性能な通信のための堅牢なソリューションを提供します。
- アンテナの小型サイズと広い帯域幅は、スペースが限られたアプリケーションに適しています。
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