Spatial Interferer Rejection in a 4-Element Beamforming Receiver Frontend with a Switched-Capacitor Vector Modulator

Soer, Michiel C.M. and Klumperink, Eric A.M. and Nauta, Bram and Vliet van, Frank E. (2011) Spatial Interferer Rejection in a 4-Element Beamforming Receiver Frontend with a Switched-Capacitor Vector Modulator. IEEE Journal of Solid-State Circuits, 46 (12). pp. 2933-2942. ISSN 0018-9200

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Abstract:	A 1-4GHz 4-element phased array receiver frontend demonstrates spatial interferer rejection using null steering. Element phase and amplitude control are performed by a switchedcapacitor vector modulator with integrated downconversion, utilizing a rational sine/cosine approximation. The 65nm CMOS receiver achieves more than 20dB of spatial interferer rejection up to an angular separation of 15°.
Item Type:	Article
Copyright:	© 2011 IEEE
Faculty:	Electrical Engineering, Mathematics and Computer Science (EEMCS)
Research Group:	Integrated Circuit Design (ICD)
Link to this item:	http://purl.utwente.nl/publications/79355
Official URL:	http://dx.doi.org/10.1109/JSSC.2011.2163553
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