超低功耗UWB通信系统采用SAW匹配滤波器

T. Sugiura, T. Sato, E. Otobe, K. Tanji, N. Otani, H. Nagasaka, M. Hasegawa, T. Shimamori
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引用次数: 6

摘要

介绍了一种超低功耗的声波匹配滤波器超宽带通信系统。该系统采用了一种独特的脉冲位置调制(PPM)方法,并结合了扩频码,该扩频码是通过使用SAW匹配滤波器进行调制和解调来实现的。该方法还采用了一种独特的扩频码,提高了期望相关信号与非期望相关信号的比值(D/U比)。我们制作了4ghz SAW匹配滤波器,并将其用于由这些滤波器、低噪声放大器、转换器、基带电路和天线组成的UWB模块中。通过超宽带通信系统,我们实现了20mbps的实时视频流。射频段的TX和RX功耗分别为50 mW和150 mW。结果表明,该系统适用于低功耗的无线个人区域网络(WPAN)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Ultra-low power UWB communication system using SAW matched filters
The paper introduces a novel Ultra-wideband (UWB) communication system with SAW matched filters that can be operated with low power consumption. The system employs a unique pulse position modulation (PPM) method combined with spreading codes that are achieved by using SAW matched filters for modulation and de-modulation. The system also employs a unique spreading code to improve the ratio of desired correlation signal to undesired signals (D/U ratio) in this method. We fabricated 4-GHz SAW matched filters and used them in a UWB module comprised of these filters, low noise amplifiers, converters, base-band circuits and an antenna. With the UWB communication system, we achieved 20-Mbps real-time video streaming. The TX and RX power consumption in RF section were 50 mW and 150 mW, respectively. These results indicate that this system is suitable for a wireless personal area network (WPAN) that requires low power consumption.
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