915MHz 120μW-RX/900μW-TX包膜检测收发器,带内干扰容限20dB

Xiongchuan Huang, A. Ba, P. Harpe, G. Dolmans, H. D. Groot, J. Long
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引用次数: 32

摘要

在低功耗无线传感器网络(WSN)应用的无线电收发器设计中,在保持性能的同时最小化功耗是至关重要的。鉴于低于毫瓦的功率预算,许多无线电使用幅度调制和包络检测来消除对精确频率参考的需求并降低功耗[1-4]。然而,这种无线电的频率选择性很差。它们依靠前端滤波器来抑制带外干扰,而带内干扰仍然会破坏期望的信号。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A 915MHz 120μW-RX/900μW-TX envelope-detection transceiver with 20dB in-band interference tolerance
Minimizing the power consumption while maintaining performance is paramount in radio transceiver design for low-power wireless sensor network (WSN) applications. Given a sub-mW power budget, many radios have utilized amplitude modulation and envelope detection to eliminate the need for accurate frequency references and to reduce power consumption [1-4]. However, such radios suffer from poor frequency selectivity. They rely on front-end filters to reject out-of-band interference, while in-band interferers still corrupt the desired signal.
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