Concepedia

9.2 A scalable 0.1-to-1.7GHz spatio-spectral-filtering 4-element MIMO receiver array with spatial notch suppression enabling digital beamforming

Linxiao Zhang, Arun Natarajan, Harish Krishnaswamy

2016 · 26 citations · 4 references

DOI

Concepts

Abstract

Multiple-antenna receivers offer numerous advantages over single-antenna receivers, including sensitivity improvement, ability to reject interferers spatially and enhancement of data-rate or link reliability via MIMO. In the recent past, RF/analog phased-array receivers have been investigated [1-4]. On the other hand, digital beamforming offers far greater flexibility, including ability to form multiple simultaneous beams, ease of digital array calibration and support for MIMO. However, ADC dynamic range is challenged due to the absence of spatial interference rejection at RF/analog.

References

4

2.4 A 0.028mm<sup>2</sup> 11mW single-mixing blocker-tolerant receiver with double-RF N-path filtering, S<inf>11</inf> centering, +13dBm OB-IIP3 and 1.5-to-2.9dB NF

Zhicheng Lin, Pui‐In Mak, Rui P. Martins · 2015 · 45 citations

, , +12

A 1.0-to-4.0GHz 65nm CMOS four-element beamforming receiver using a switched-capacitor vector modulator with approximate sine weighting via charge redistribution

Michiel C. M. Soer, Eric A.M. Klumperink, Bram Nauta et al. · 2011 · 23 citations

, , +16

Simultaneous spatial and frequency-domain filtering at the antenna inputs achieving up to +10dBm out-of-band/beam P<sub>1dB</sub>

Amir Ghaffari, Eric E.A.M. Klumperink, Frank van Vliet et al. · 2013 · 22 citations · Full text

, , +15

3.5 A 1.0-to-2.5GHz beamforming receiver with constant-G&lt;inf&gt;m&lt;/inf&gt; vector modulator consuming &amp;#x003C; 9mW per antenna element in 65nm CMOS

Michiel C. M. Soer, Eric A.M. Klumperink, Bram Nauta et al. · 2014 · 13 citations · Full text

, , +16