Design of High-Linearity Mixer-First Receivers for mm-Wave Digital MIMO Arrays

Autor:	Sashank Krishnamurthy, Lorenzo Iotti, Ali M. Niknejad
Rok vydání:	2021
Předmět:	CMOS Computer science Local oscillator MIMO Hardware_INTEGRATEDCIRCUITS Baseband Electronic engineering Linearity Hardware_PERFORMANCEANDRELIABILITY Electrical and Electronic Engineering Noise figure Frequency mixer Charge sharing
Zdroj:	IEEE Journal of Solid-State Circuits. 56:3375-3387
ISSN:	1558-173X 0018-9200
DOI:	10.1109/jssc.2021.3101984
Popis:	A 10–35-GHz mixer-first receiver is proposed for use in digital multiple-input–multiple-output (MIMO) arrays. Techniques are proposed to enhance the linearity of such receivers, both at baseband and the RF mixer switches. Techniques to mitigate charge sharing due to local oscillator (LO) overlap are also proposed. Detailed simulation results are provided to illustrate the benefits of these techniques. An integrated circuit prototype is fabricated in 28-nm bulk CMOS and fully characterized. The receiver has built-in programmability to tradeoff gain for linearity. The receiver achieves a peak in-band IIP3 of +14.1 dBm, a peak gain of 14.5 dB, and a noise figure of 12.5 dB, in its nominal setting.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d5c8513f3032c615fdc44e53f95260af https://doi.org/10.1109/jssc.2021.3101984 Zobrazit plný text záznamu