A time-modulated concurrent steerable multibeam MIMO receiver array with spectral-spatial mapping using one beamformer and single-wire interface

TY Huang, B Lin, NS Mannem… - IEEE Journal of Solid …, 2023 - ieeexplore.ieee.org
This work proposes a wideband 26–33 GHz multiple-input-multiple-output (MIMO) receiver
(RX) array that leverages time-modulation operation to achieve concurrent steerable …

Low RF-complexity digital transmit beamforming for large-scale millimeter wave MIMO systems

W Ahmad, H Zhang, Y Chen… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Digital beamforming (DBF) with full Radio-Frequency (RF) complexity requires a separate
RF chain per transmit antenna, which is not only difficult to realize for large-scale MIMO …

Wideband hybrid precoding using time modulated arrays

JP González-Coma, L Castedo - IEEE Access, 2020 - ieeexplore.ieee.org
Hybrid digital-analog precoding is a cost effective solution for transmitting over the large
bandwidths and huge antenna arrays available in the millimeter wave frequency bands. In …

Underdetermined DOA estimation exploiting the higher‐order cumulants of harmonic steering vector with time‐modulated arrays

Y Ma, C Miao, YH Li, W Wu - IET Signal Processing, 2022 - Wiley Online Library
Time‐modulated arrays (TMAs) have been widely studied owing to their convenient control
mode and simple structure. Although direction‐of‐arrival (DOA) estimation based on TMA …

A partition-based method for harmonic beamforming of time-modulated planar array

Y Ma, C Miao, YH Li, W Wu - IEEE Transactions on Antennas …, 2020 - ieeexplore.ieee.org
Because of the multiplication of antennas, harmonic beamforming based on the time-
modulated planar array (TMPA) requires a much longer modulation period than the time …

Bidirectional beamforming with+ 1st harmonic in time‐modulated linear arrays using two switching sequences

Y Ma, C Miao, YH Li, W Wu - Microwave and Optical …, 2021 - Wiley Online Library
In this study, a novel scheme is proposed for bidirectional beamforming using time‐
modulated linear arrays (TMLAs). A beamforming method with a time shift was adopted to …

Power efficient scheduling and hybrid precoding for time modulated arrays

JP González-Coma, L Castedo - IEEE Access, 2020 - ieeexplore.ieee.org
We consider power efficient scheduling and precoding solutions for multiantenna hybrid
digital-analog transmission systems that use Time-Modulated Arrays (TMAs) in the analog …

A figure of merit in a time-modulated array

MH Mazaheri, M Fakharzadeh, M Akbari… - IEEE Antennas and …, 2019 - ieeexplore.ieee.org
In this letter, we use G/T as a figure of merit to evaluate the performance of time-modulated
arrays (TMA). The noise performance of a receiver, which is periodically switched ON and …

Hyper beamforming in time modulated linear arrays

Y Ma, C Miao, W Wu, Y Li - 2020 IEEE Asia-Pacific Microwave …, 2020 - ieeexplore.ieee.org
In this paper, a method of hyper beamforming (HBF) based on a time modulated array is
proposed. With the time-modulation, the phase and amplitude of the hyper beam can be …

A time modulated array with polarization diversity capability

MH Mazaheri, M Fakharzadeh, M Akbari… - IEEE …, 2021 - ieeexplore.ieee.org
The Time Modulated Array (TMA) provides multiple radiation beams at different frequencies,
by turning the radiating elements on and off. In this paper, we propose to add polarization …