A 65 nm CMOS 330 Mb/s microwave backscatter link at 2.4 to 2.9 GHz with ambient blocker cancellation

Adrian Tang, Yanghyo Kim, Mau-Chung Chang

Research output: Contribution to journalArticlepeer-review

5 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 2.4 GHz ISM band towards higher data-rate wireless connectivity solutions. The demonstrated microwave backscatter link uses CMOS RFIC implementation as opposed to discrete components, enabling low power consumption, while maintaining a high modulation bandwidth. Similar to RFID readers, the prototype link also cancels the carrier self-leakage and ambient reflection with internal calibration within a base-station chip. The demonstrated link is implemented and characterized in a 65 nm CMOS technology and is shown to provide 330 Mb/s of raw data-rate with BERs better than} 10-9 over distances up to 2.5 m.

Original languageEnglish
Article number7362257
Pages (from-to)61-63
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Volume26
Issue number1
DOIs
StatePublished - 1 Jan 2016

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