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A 2-5.5 GHz Beamsteering Receiver IC with 4-Element Vivaldi Antenna Array

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Original languageEnglish
Pages (from-to)3852-3860
Number of pages9
JournalIEEE Transactions on Microwave Theory and Techniques
Issue number9
Publication statusPublished - 1 Sep 2020
Publication typeA1 Journal article-refereed


In this article, we present a four-element Vivaldi antenna array and beamsteering receiver IC for the fifth-generation mobile network (5G) new radio (NR). The implemented receiver utilizes a delay-based local-oscillator phase shift technique for accurate beamsteering, and it exhibits 1° to 2.4° phase tuning capability for 2-5 GHz bandwidth accordingly. On-chip delay measurement is performed with pilot signal generation and delay estimation capable of 2-ps accuracy. The IC is fabricated on 28-nm CMOS technology, it occupies an area of 1.4 × 1.4 mm2, including bonding pads, and consumes 22.8 mW at 2 GHz for single-receiver path operation. The receiver demonstrates wideband over-the-air reception with the prototype antennas.


  • Beamsteering, calibration, delay estimator, delay line, local oscillator (LO) phase shifting, phased arrays, radio frequency (RF) front ends, self-test, sub-6 GHz, Vivaldi antenna, wideband receiver

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