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

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 1.4x1.4 mm^2, 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.

Description

| openaire: EC/H2020/704947/EU//ADVANTAG5

Keywords

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.

DOI

10.1109/TMTT.2020.2986754

Citation

Zahra, M, Kempi, I, Haarla, J, Antonov, Y, Khonsari, Z, Miilunpalo, T, Ahmed, N, Inkinen, J, Unnikrishnan, V, Lehtovuori, A, Viikari, V, Anttila, L, Valkama, M, Kosunen, M, Stadius, K & Ryynänen, J 2020, 'A 2-5.5 GHz Beamsteering Receiver IC With 4-Element Vivaldi Antenna Array', IEEE Transactions on Microwave Theory and Techniques, vol. 68, no. 9, 9082186, pp. 3852-3860. https://doi.org/10.1109/TMTT.2020.2986754

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https://urn.fi/URN:NBN:fi:aalto-202005073027

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[article-cris] Sähkötekniikan korkeakoulu / ELEC

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

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