A 4-31GHz Direct-Conversion Receiver Employing Frequency-Translated Feedback

被引：7

作者：

Dean, Jacob ^{[1
]}

Hari, Sandeep ^{[1
]}

Bhat, Avinash ^{[1
]}

Floyd, Brian A. ^{[1
]}

机构：

[1] North Carolina State Univ, Dept Elect & Comp Engn, Raleigh, NC 27695 USA

来源：

ESSCIRC 2021 - IEEE 47TH EUROPEAN SOLID STATE CIRCUITS CONFERENCE (ESSCIRC) | 2021年

关键词：

passive-mixer; receiver; N-path; beamforming; direct-conversion; negative feedback; frequency-translational feedback; CMOS; front-end; 5G;

D O I：

10.1109/ESSCIRC53450.2021.9567779

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents a multi-band direct-conversion receiver with frequency-translated feedback. The forward path includes a low-noise transconductance amplifier followed by four-phase passive mixers which drive baseband amplifiers, and the feedback path employs tunable resistor banks attached to additional four-phase passive mixers, allowing tunable frequency-selective input matching. The receiver operates from 4-31 GHz exhibiting greater than 25 dB gain through 22 GHz and greater than 17 dB gain through 31 GHz. Noise figure is 5.2 to 9.8 dB, rising with frequency; input-referred 1-dB compression point is -17 dBm; and in-band IIP3 is -6.6 dBm. Out-of-band 1-dB blocker compression is greater than -12 dBm. The receiver core consumes 91 mW, whereas an integrated 2:1 frequency divider and pass-gate buffer for generating non-overlapping four-phase clocks consumes an additional 87-227 mW from 4-31 GHz, respectively.

引用

页码：187 / 190

页数：4

共 28 条

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