An IR-UWB IEEE 802.15.4z compatible coherent asynchronous polar transmitter in 28-nm CMOS
| Autor: | Mohieddine El Soussi, Sam Lemey, Arjan Breeschoten, Elbert Bechthum, Christian Bachmann, Gert-Jan Gordebeke, Evgenii Tiurin, Johan van den Heuvel, Gert-Jan van Schaik, Gaurav Singh, Yuming He, Paul Mateman, Hannu Korpela, Johan Dijkhuis, Erwin Allebes, Yao-Hong Liu |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Physics
(UWB) Technology and Engineering business.industry Digital transmitter Amplifier Transmitter Electrical engineering transversal filter Ring oscillator Pulse shaping impulse radio localization IEEE 802154a polar transmitter ultra-wideband CMOS IEEE 802154z Electrical and Electronic Engineering Wideband business Phase modulation INJECTION-LOCKING IEEE 802.15 |
| Zdroj: | IEEE JOURNAL OF SOLID-STATE CIRCUITS |
| ISSN: | 0018-9200 1558-173X |
| Popis: | 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- to 10-GHz frequency bands. The ILRO also allows for duty-cycled coherent mode operation with 2–4-ns phase locking time and binary phase modulation is applied directly on the oscillator. The on-chip digital front end enables duty cycling (DC) of analog front-end modules with a granularity of 2 ns. Implemented in 28-nm CMOS process, this chip is measured to consume 4.9-mW power in nominal mode with IEEE 802.15.4z high pulse repetition frequency (HPRF) compatible data rate of 6.81 Mb/s compliant with major spectrum mask regulations for channels 5 and 9. With DC of the oscillator enabled in the energy-efficient mode, a power consumption of $430~\mu \text{W}$ is achieved for packets compatible with legacy pulse-position-modulated IEEE 802.15.4a standard with a data rate of 27.2 Mb/s. |
| Databáze: | OpenAIRE |
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