Title
A Wideband IF Receiver Module for Flexibly Scalable mmWave Beamforming Combining and Interference Cancellation
Abstract
Large-scale phased arrays need to combine weighted signals from multiple sub-arrays either in analog or in digital domain. Sub-arrays are preferably implemented modularly with integrated circuits placed next to the associated antennas. In order to enable flexible and scalable combining networks of several mmWave sub-arrays, this paper presents a wideband receiver module that provides the cartesian combining of beamforming weights for one sub-array at IF. Furthermore, it allows interference cancellation between sub-arrays or combining multiple sub-arrays. It also provides filtering before ADCs to support current and foreseeable 5G channel bandwidths up to 800MHz. The receiver is operating at 2-4GHz IF frequency range and has more than 400MHz baseband bandwidth, a noise-figure of 5.5dB, -6dBm 1dB compression point and +3dBm in-band IIP3. In addition, over-the-air measurements are performed, showing 26dB of interference cancellation between the sub-arrays. The prototype is implemented using 45nm CMOS PDSOI.
Year
DOI
Venue
2019
10.1109/ESSCIRC.2019.8902869
ESSCIRC 2019 - IEEE 45th European Solid State Circuits Conference (ESSCIRC)
Keywords
DocType
ISSN
phased array,beamforming,phase shifter,complex multiplication,inter-beam interference cancellation
Conference
1930-8833
ISBN
Citations 
PageRank 
978-1-7281-1551-1
0
0.34
References 
Authors
5
7
Name
Order
Citations
PageRank
Rehman Akbar103.04
Eric A. M. Klumperink200.34
Nuutti Tervo312.78
Muhammad Yasir Javed401.01
Kari Stadius56823.73
Timo Rahkonen69940.79
Aarno Pärssinen7297.12