[PDF][PDF] Low-Earth orbit user segment in the Ku and Ka-band: An overview of antennas and RF front-end technologies

G Amendola, D Cavallo, T Chaloun… - IEEE Microwave …, 2023 - researchportal.hw.ac.uk
Low-Earth Orbit User Segment in the Ku and Ka-Band Page 1 Heriot-Watt University
Research Gateway Low-Earth Orbit User Segment in the Ku and Ka-Band Citation for …

Enabling multi-functional 5G and beyond user equipment: A survey and tutorial

Y Huo, X Dong, W Xu, M Yuen - IEEE Access, 2019 - ieeexplore.ieee.org
The fifth generation (5G) research and development has been fueled by many new
breakthroughs in various areas. The recent progress in carrier aggregation (CA), licensed …

Millimeter-wave integrated phased arrays

D Zhao, P Gu, J Zhong, N Peng, M Yang… - … on Circuits and …, 2021 - ieeexplore.ieee.org
Large-scale millimeter-wave (mm-Wave) integrated phased array is the key technology to
enable broadband 5G and satellite communications. This paper details the design …

A 28-GHz four-channel beamforming front-end IC with dual-vector variable gain phase shifters for 64-element phased array antenna module

J Park, S Lee, J Chun, L Jeon… - IEEE Journal of Solid …, 2022 - ieeexplore.ieee.org
A 28-GHz fully differential four-channel beamforming front-end IC with variable gain phase
shifters (VGPSs) is presented, of which orthogonal phase and gain control is achieved in a …

Joint phase-time arrays: A paradigm for frequency-dependent analog beamforming in 6G

VV Ratnam, J Mo, A Alammouri, BL Ng, J Zhang… - IEEE …, 2022 - ieeexplore.ieee.org
Hybrid beamforming is an attractive solution to build cost-effective and energy-efficient
transceivers for millimeter-wave and terahertz systems. However, conventional hybrid …

A 2.4–4-GHz Wideband 7-Bit Phase Shifter With Low RMS Phase/Amplitude Error in 0.5-μm GaAs Technology

X Li, H Fu, K Ma, J Hu - IEEE Transactions on Microwave …, 2021 - ieeexplore.ieee.org
This article presents a 2.4–4-GHz wideband 7-bit switch-type phase shifter (STPS) with a
switch driver. Three switch-type phase shifting topologies are employed for the design of the …

Analysis and design of a CMOS bidirectional passive vector-modulated phase shifter

P Gu, D Zhao, X You - … Transactions on Circuits and Systems I …, 2021 - ieeexplore.ieee.org
This paper presents a passive vector-modulated phase shifter (VMPS). The passive X-type
attenuator consisting of digitally controlled transistor-array units is employed to perform the …

A 28–30 GHz CMOS reflection-type phase shifter with full 360° phase shift range

A Basaligheh, P Saffari, SR Boroujeni… - … on Circuits and …, 2020 - ieeexplore.ieee.org
This brief presents a millimeter-wave passive reflection-type phase shifter (RTPS) capable of
producing a 360° phase shift range with low insertion loss (IL) in 28-30 GHz range. The …

Second-order equivalent circuits for the design of doubly-tuned transformer matching networks

A Mazzanti, A Bevilacqua - … on Circuits and Systems I: Regular …, 2018 - ieeexplore.ieee.org
The doubly-tuned magnetic transformer, comprising coupled inductors shunted by
capacitors, is today widely in use as interstage network and for impedance matching in …

A 60-GHz low-power active phase shifter with impedance-invariant vector modulation in 65-nm CMOS

GH Park, CW Byeon, CS Park - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
This study presents the design and analysis of a 60-GHz low-power active vector-sum phase
shifter with 5-bit phase resolution. An impedance-invariant variable gain amplifier (VGA) is …