Published September 2016
| public
Journal Article
A 5.8 GHz 54 Mb/s Backscatter Modulator for WLAN With Symbol Pre-Distortion and Transmit Pulse Shaping
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.
Additional Information
© 2016 IEEE. Manuscript received April 25, 2016; accepted June 13, 2016. The authors are thankful to the Staff of TSMC for excellent 65 nm fabrication support.Additional details
- Eprint ID
- 70008
- Resolver ID
- CaltechAUTHORS:20160830-070533260
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2016-08-30Created from EPrint's datestamp field
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2021-11-11Created from EPrint's last_modified field