宽带高频通信的直接天线调制

2020 IEEE USNC-CNC-URSI North American Radio Science Meeting (Joint with AP-S Symposium) Pub Date : 2020-07-05 DOI:10.23919/USNC/URSI49741.2020.9321679

Tayfun Özdemir, C. N. Davis, D. Ariando, S. Mandal

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引用次数: 0

摘要

为了保持辐射效率，天线的尺寸随着波长的增加而增加，因此，对于低频，天线的尺寸会变得非常大。由于在任何平台上，空间都是非常宝贵的，因此这种限制会产生具有低辐射效率和窄瞬时带宽(IBW)的电小天线，严重限制了传输数据速率。高频波段提供了良好的传播特性，但传统的高频天线系统受到辐射效率和IBW的限制。本文描述了证明高频直接天线调制(DAM)方案克服这一基本权衡的理论和仿真工作。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Direct Antenna Modulation for Wide-Band HF Communications

Antenna size increases with wavelength in order to maintain the radiation efficiency so, for low frequencies, grows prohibitively large. Because real estate is at premium in any platform, such restrictions produce electrically small antennas with low radiation efficiency and narrow instantaneous bandwidth (IBW), putting severe limitations on transmit data rates. The HF band provides favorable propagation characteristics but legacy HF antenna systems suffer from both radiation efficiency and IBW limitations. This paper describes theoretical and simulation work on demonstrating a HF direct antenna modulation (DAM) scheme to overcome this fundamental trade-off.

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来源期刊

2020 IEEE USNC-CNC-URSI North American Radio Science Meeting (Joint with AP-S Symposium)

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