A 5.8 GHz 54 Mb/s Backscatter Modulator for WLAN with Symbol Pre-Distortion and Transmit Pulse Shaping

Adrian Tang, Yanghyo Kim, Yinuo Xu, Mau-Chung Chang

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

This letter discusses the implementation of microwave backscatter links in CMOS technology which are similar to existing systems at mid-UHF for RFID, but intended for use at the 5.8 GHz ISM band for supporting future low-power WLAN applications. In order for backscatter links to operate in highly channelized environments we introduce a pulse-shaping technique to reduce out-of-band emissions as well as a symbol pre-distortion technique to improve the constellation spacing. Both techniques are introduced into a 65 nm prototype backscatter modulator chip and are shown to operate with QPSK modulation at 54 Mb/s (typical of WLAN standards). The backscatter modulator chip was shown to consume 1.61 mW of power.

Original languageEnglish
Article number7551205
Pages (from-to)729-731
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Volume26
Issue number9
DOIs
StatePublished - 1 Sep 2016

Keywords

  • CMOS backscatter link
  • pre-distortion
  • pulse shaping
  • reflector link

Fingerprint Dive into the research topics of 'A 5.8 GHz 54 Mb/s Backscatter Modulator for WLAN with Symbol Pre-Distortion and Transmit Pulse Shaping'. Together they form a unique fingerprint.

Cite this