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

Mahwish Zahra, Ilia Kempi, Jaakko Haarla, Yury Antonov, Zahra Khonsari, Toni Miilunpalo, Nouman Ahmed, Juha Inkinen, Vishnu Unnikrishnan, Anu Lehtovuori, Ville Viikari, Lauri Anttila, Mikko Valkama, Marko Kosunen, Kari Stadius, Jussi Ryynänen

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)
244 Downloads (Pure)


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.
Original languageEnglish
Article number9082186
Pages (from-to)3852-3860
Number of pages9
JournalIEEE Transactions on Microwave Theory and Techniques
Issue number9
Early online date2020
Publication statusPublished - Sep 2020
MoE publication typeA1 Journal article-refereed


  • 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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