An 8GHz multi-beam spatio-spectral beamforming receiver using an all-passive discrete time analog baseband in 65nm CMOS

Satwik Patnaik, Sachin Kalia, Bodhisatwa Sadhu, Martin Sturm, Mohammad Elbadry, Ramesh Harjani

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

A novel multi-frequency beamforming front-end is proposed. The proposed front-end allows for simultaneous and independent steering of multiple frequency beams. As proof of concept, an 8GHz 2-channel, 4-frequency phased array beam-former is designed and implemented in 65nm CMOS. The IF signal on each channel is frequency split using an all passive 4-point analog FFT. The orthogonal frequency outputs are then beam steered using an all passive I-Q vector combiner. The RF circuit draws 22.8mA from a 1.2V supply while the analog baseband consumes 9pJ/conv. (135μW at 120MSps).

Original languageEnglish (US)
Title of host publicationProceedings of the IEEE 2012 Custom Integrated Circuits Conference, CICC 2012
DOIs
StatePublished - Nov 26 2012
Event34th Annual Custom Integrated Circuits Conference, CICC 2012 - San Jose, CA, United States
Duration: Sep 9 2012Sep 12 2012

Other

Other34th Annual Custom Integrated Circuits Conference, CICC 2012
CountryUnited States
CitySan Jose, CA
Period9/9/129/12/12

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