WBAN发射机啁啾脉冲发生器的分析与设计

2019 IEEE International Conference on Design & Test of Integrated Micro & Nano-Systems (DTS) Pub Date : 2019-04-01 DOI:10.1109/DTSS.2019.8915367

Saif Benali, Mouna Bettaieb, G. Bouzid, H. Trabelsi

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引用次数: 0

摘要

介绍了一种基于啁啾扩频技术的脉冲无线电超宽带(IR-UWB)发射机脉冲发生器，工作在3-5GHz频段。它由一个由斜坡发生器控制的差动环振荡器组成。使用开/关开关操作，以节省功耗。在0.18μm CMOS工艺中进行仿真，结果表明，在偏移量为10MHz时，相位噪声为- 105 dBc/ Hz，脉冲持续时间为20ns，脉冲重复频率(PRF)为10MHz。输出频谱完全符合FCC频谱掩模，旁瓣抑制大于22db。该电路在1.8V电源下功耗为1.7mW，能量效率为0.17 nJ/bit。

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Analysis and design of chirped pulse generator for WBAN transmitter

A new pulse generator based on chirp spread spectrum technique for impulse radio ultrawideband (IR-UWB) transmitter operating in the 3-5GHz band is described in this paper. It consists of a differential ring oscillator controlled by a ramp generator. ON/OFF switching operation is used in order to save power consumption. Simulated in a 0.18μm CMOS process, the results show a worse case phase noise of −105 dBc/ Hz at 10 MHz offset, a pulse duration of 20ns and a pulse repetition frequency (PRF) of 10MHz. The output spectrum fully complies with the FCC spectral mask with more than 22 dB of side lobe rejection. The circuit dissipates 1.7mW from 1.8V power supply and achieves an energy efficiency of 0.17 nJ/bit.

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来源期刊

2019 IEEE International Conference on Design & Test of Integrated Micro & Nano-Systems (DTS)

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