【時間】2025年6月5日（周四）下午15：00 開始

【地點】線下講座，9B406會議室

【主題】面向車載導航定位應用的雙頻寬軸比波束GPS貼片天線研究

【主講人及介紹】

    鐘增培，博士，現(xiàn)電信工程與智能化學院通信工程系講師。分別于2016年、2021年獲得深圳大學應用物理學專業(yè)學士學位、信息與通信工程專業(yè)博士學位。研究方向：面向低空經(jīng)濟的高性能智能化小型天線設計及應用。近年來，致力于高性能、小型化的導航圓極化天線研究，圍繞雙頻/寬頻、寬軸比波寬、增強前后比、小型化設計做了許多相關工作。主持/參與多項國家級、省部級以及橫向項目，發(fā)表高水平SCI期刊和會議論文十余篇，授權國家發(fā)明專利6項。

【內(nèi)容簡介】

    A compact circularly polarized patch antenna with wide axial-ratio beamwidth (ARBW) operating at dual bands compatible for GPS satellite navigation application is proposed in this paper, The antenna consists of two stacked patches, which account for GPS L1 band (1575 ±2 MHz) and L2 band (1228 ± 2 MHz). To realize significant size miniaturization, four pillars are introduced and strongly coupled to the lower patch. To adjust the beamwidth response of the far-field components, the antenna is backed by a modified metallic cavity, which in turn widen the 3-dB ARBW at two operating bands effectively. Finally, the proposed design with excellent performance is realized in a size of 0.368λ0 (diameter)and 0.105λ0 (height). Simulated and measured results show that the ARBWs at L1 and L2 bands are as wide as 173° and 133° respectively. For practical application, its satisfactory GPS signal receiving capability is also verified by outdoor positioning test.

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