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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.
|Number of pages||9|
|Journal||IEEE Transactions on Microwave Theory and Techniques|
|Early online date||2020|
|Publication status||Published - Sep 2020|
|MoE publication type||A1 Journal article-refereed|
- delay estimator
- delay line
- local oscillator (LO) phase shifting
- phased arrays
- radio frequency (RF) front ends
- sub-6 GHz
- Vivaldi antenna
- wideband receiver.
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- 1 Finished
ADVANTAG5: Advanced Wide-Band Transceiver Architectures for Beyond 5G Wireless Systems
01/05/2017 → 30/06/2020
Project: EU: Framework programmes funding