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An IR-UWB CMOS Transceiver With Extended Pulse Position Modulation Geunhaeng Lee , Junyoung Jang
一种采用E-MPPM、CC包络检测和DFH技术的低功耗高数据率IR-UWB CMOS收发器。
1.125 Gbps数据率，2米通信距离，28 mW功耗，24.9 pJ/b能效
IR-UWBCMOS收发器E-MPPM包络检测数字频率跳变
▸扩展多脉冲位置调制(E-MPPM)：该方法创新通过扩展传统MPPM的脉冲位置组合，显著提升调制效率和数据传输速率，支持1.125 Gbps的高数据率通信，同时保持低功耗特性。
▸交叉耦合(CC)包络检测：电路创新采用电容性交叉耦合技术，有效提高包络检测器的转换增益，从而增强接收机灵敏度，优化了信号检测性能。
▸数字频率跳变(DFH)：系统创新通过动态调整脉冲频率，在不违反功率谱密度(PSD)限制的条件下提升脉冲能量，扩展通信距离至2米，同时维持28 mW的低功耗。
▸能效优化：整体设计通过协同E-MPPM、CC和DFH技术，实现24.9 pJ/b的超高能效比，为短距高速通信提供了一种低功耗解决方案。
Abstract
An impulse radio ultra-wideband (IR-UWB) trans- ceiver is implemented with low power, high data rate communica- tion techniques, such as extended multipulse position modulation (E-MPPM), cross-coupled (CC) envelope detection, and digital frequency hopping (DFH). The use of the E-MPPM helps increase the modulation efficiency. The capacitive-CC technique helps improve the sensitivity by increasing the conversion gain of an envelope detector. DFH increases the pulse energy of a transmit- ted impulse without sacrificing the power spectral density (PSD) requirement. The proposed CMOS transceiver achieves a data rate of 1.125 Gbps and a radio range of 2 m with a power consumption of 28 mW and energy efficiency of 24.9 pJ/b.