One Mbps 1 nJ/b 3.5-4 GHz Fully Integrated FM-UWB Transmitter for WBAN Applications
One Mbps 1 nJ/b 3.5-4 GHz Fully Integrated FM-UWB Transmitter for WBAN Applications
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DOI：
10.1109/tcsi.2017.2771369
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发表时间：
2018-06-01
影响因子：
5.1
通讯作者：
Sawan, Mohamad
中科院分区：
文献类型：
--
作者：
Ali, Mohamed;Shawkey, Heba;Sawan, Mohamad
本文介绍了一种采用130纳米CMOS技术实现的全集成调频超宽带发射机。3.5- 4ghz波段发射机包括一个基于锁相环（PLL）的二进制移频键控子载波发生器，以提供调制的三角形波形。射频信号使用压控振荡器产生，并由三角形信号调制，从而产生恒定包络的超宽带信号。采用一种基于锁相环的射频校准方案对调制射频信号的上下频率进行校准。这种新型校准结构的目的是在固定的发射波段内保持发射。利用ab类功率放大器对调制后的射频信号进行放大，并通过集成匹配网络驱动天线。发射机的硅面积为0.124 mm(2)，功耗为987 mu W，电源为1.2 V。在1mbps的数据速率下，其能耗为0.987 nJ/bit。
This paper introduces a fully integrated frequency-modulated ultra-wideband (UWB) transmitter implemented in 130 nm CMOS technology. The 3.5-4 GHz band transmitter involves a phase-locked loop (PLL)-based binary frequency-shift keying subcarrier generator to provide the modulated triangular waveform. The RF signal is generated using a voltage-controlled oscillator and modulated by the triangular signal resulting in a constant-envelope UWB signal. A PLL-based RF calibration scheme is employed to calibrate the lower and the upper frequencies of the modulated RF signal. The purpose of this novel calibration structure is to keep transmitting in a fixed emission band. A Class-AB power amplifier is utilized to amplify the modulated RF signal and drive the antenna through an integrated matching network. The transmitter occupies 0.124 mm(2) silicon area and consumes 987 mu W from a 1.2 V supply. It achieves an energy consumption of 0.987 nJ/bit at 1 Mbps data rate.