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An IR-UWB IEEE 802154z Compatible Coherent Asynchronous Polar Transmitter in 28-
一种低功耗、兼容IEEE 802.15.4z HRP的相干异步极性发射机，采用数字极坐标架构和异步离散脉冲整形。
28nm CMOS, 4.9mW@6.81Mb/s, 430μW@27.2Mb/s, 3-10GHz频段
IR-UWB数字极坐标发射机异步脉冲整形注入锁定振荡器IEEE 802.15.4z兼容
▸数字极坐标架构与固定幅度步进功率放大器
▸基于电流饥饿反相器的可校准FIR滤波器脉冲整形单元
▸注入锁定环形振荡器实现宽带操作与快速相位锁定
Abstract
A low-power IEEE 802.15.4z high-rate PHY (HRP)
compatible coherent transmitter is described. The proposed
transmitter uses a digital polar architecture with fixed amplitude
steps in the power amplifier and asynchronous time-discrete
pulse shaping. The pulse-shaping unit consists of a finite-impulse
response (FIR) filter using current-starved inverter-based delay
taps that can be calibrated on-chip. An injection-locked ring
oscillator (ILRO)-based frequency synthesis enables wideband
operation from 3