题目/Title：An 8GHz Communication/Ranging IR-UWB Transmitter with Asymmetric Pulse Shaping and Frequency Hopping for Fine Ranging and Enhanced Link Margin

作者/Author：
                        Su Han, Bowen Wang, Woogeun Rhee, Zhihua Wang

会议/Conference：ISCAS 2022

地点/Location：Austin, TX, USA

年份/Issue Date：2022.27 May-01 Jun.

页码/pages：pp.757-760

摘要/Abstract：

This paper describes an IR-UWB transmitter with an asymmetric pulse which is featured with a steep rising edge and a slow falling edge. The proposed asymmetric pulse not only achieves a better ranging resolution but also reduces the intersymbol interference (ISI) for high data rate communication. For low data rate communication, a frequency hopping (FH) method is applied to the transmitter to enhance the link margin. The proposed UWB transmitter is designed in 65nm CMOS. Compared to the conventional triangle pulse, the ranging variation of the proposed asymmetric pulse is reduced from 120ps to 10ps over process, voltage and temperature (PVT) variations, the transmitter achieves the maximum data rate of 500Mb/s with a pulse energy of 11.5pJ/bit while meeting the UWB spectral mask.